So disappointed. I have everything I need except a sharpie.. Clearly no way I can start cutting threads. (seriously this another awesome vid. And I have none of what I need).
If one looks at a lathe as a lifelong piece of hobby equipment similiar to a decent table saw, sewing machine etc the lathes in the 10 to 12 inch range are actually pretty cheap. Plus there are always used ones out there. Some are used. Some are used and abused. The machine Quinn has $2400 plus shipping. Myself I'd go for the one that's 8 inches longer for another 100 bucks. This is the kind of money you could easily spend on a weeks vacation somewhere nice. Plus if you find you really do not enjoy making chips you can always sell it pretty easy.
At last, someone who tells you what you want to know in a visually and verbally succinct manner without any of the off subject babble they think is entertaining. Your channel will be my first port of call if I need to know how from now on. Thank you Quinn
Found your channel while researching for my first lathe purchase. Hands down, the best videos I have viewed. Concise and to the point, without hours of endless babbling about irrelevant nonsense. Thank you Quinn!
I am new to this hobby, just got my 7x14 mini lathe week ago but I have been watching lots of TH-cam videos for past couple months and I must admit you are my favourite teacher. I am sure lots of other people are very knowledgeable but you my friend are born teacher, thank you so much for sharing your knowledge with us.🇦🇺
some very good info which I've not seen mentioned on any other channels, particularly interpreting depth of cut from the chart on the machine and much room you have for engaging drive based on the lead screw dial.
I'll never do this, yet I watched the whole video, as I have done with others. You are smart, articulate, and interesting, you would have been ( and perhaps are) a fine teacher.
The hardest thing I find when learning a new topic is where to start. I find that rough knowledge refined over time with expwrice works better for me than an exact precise methodology upfront as I miss the broadstrokes. I have long since loved your videos for the fact that they make me, someone's who's less than a novice, get a feel for what I'm even learning. Some of your more in depth videos go over my head but I'll get there 😅
I never even thought about the compound angles being different on import lathes, like you said, nobody ever mentions it... Now I know why I’ve been getting sawtooth threads! Thanks Quinn!
@@somebodyelse6673 The tool remains square with the workpiece at all times, which is what you use the fishtail for. The compound angle determines the angle of the feed into the workpiece, which means that you feed in following the angle of the thread profile so you’re only cutting on one side... at least that’s how I think it goes
Quinn, I just wanted you to know that I've been struggling with screwcutting for several years and after watching this video about half a dozen times, I FINALLY managed to cut my first thread today on my little import lathe (I'm a Brit that uses metric, so went for an M12x1.75). It took me three goes to get something workable - and the third one was dog rough, but the nut went on. I can't tell you how delighted I am and you had a huge part in that. Thank you for all your careful explanations!
Having been a tool and die maker for a lot of years, I have chased a lot of threads on a lathe. That being said, I find this a very informative video to teach beginning machinists and hobbyists the proper way to preform that task. You go girl. :-) Charlie
@@Mobile-ct1yfBSPP and BSPT. I'm wondering how many John Deere and caterpillar tractors are out there with hydraulics that have 60 degree thread angles on their BSPT connections because of me. 😂 Oops.
Just bought a lathe and looking for a demo of of thread cutting landed me here. Great video! And now your entire "big steam engine" build has been added to my Watch Later. Look forward to watching it.
Thank you. Its the minor details that are over looked by experts when your starting out cutting threads that I have not been able to find. You have answered most of the major questions I have had. Thanks for the video.
Quinn, You MUST have a background in teaching, yes? I could learn almost anything with you as the teacher it feels like. Whenever I see this much talent being shared with ordinary people (who aren't paying btw) , it makes me wonder about the motivation that inspires it? Regardless, thank you for making these videos! I'm an aspiring hobbyist who frequently struggles with not owning a lathe. Stumbling across your videos has be a game changer for me. Between your teaching and my mechanical curiosity, I think I've just been letting my anxiety about the whole idea keep me from making the purchase. Once again, thank you for taking the time to make these! Certainly worth our time to watch them!!
I'm very happy to have found your channel, your explanations are very clear. My father was a bit of a tool wizard and gifted me his Sherline mini lathe and mill before he passed. I now have hope that I might be able actually make something with these great tools he left me.
I like the banjo on that lathe. It looks a lot less fiddly than the one on the Grizzly. The manual looks more helpful, too. The diagram with all the parallel threads is an excellent visualization.
@@Blondihacks I was thinking about making a bowl of popcorn and waiting for the comments to start. :) The fact is, though, everything you teach in this video is all still applicable--even with some electronic help.
"Lets all go to the lobby". Hey kids, remember theaters? That was a place we used to go on dates to watch movies together. What a crazy concept. Great video as usual Quinn.
Some of us are old enough to remember when theaters actual had place to sit and chat. And the weekend double feature with a few cartoons and a news reel. Mom and Dad could drop you off just before noon and not have to worry about the urchins until after four or five. ^_*
Thank you for this video. I have the same PM lathe as you and was able to successfully cut 1/2-13 threads in 316 SS after watching your video (I never tried threading on the lathe before this). Your incremental steps were the perfect primer and enabled me to finish the forward hatch for my steel sailboat. I ended up breaking and having to rebuild the change gear axles in the process and ruined a few inches of nice stainless practicing and determining which of the techniques was best for me, but I can now produce repeatable threads :>). Your videos are a great asset to the world and you help make all of us better machinists! Keep up the good work.
Hey everyone- yes, I know there is a typo on one of the unit conversions. Save your comments about it. A lot of people are also asking about flipping the compound the other way for cutting left to right. Ideally yes, because then the cutting forces are pushing into the compound backlash direction. In practice it doesn’t matter because the cuts are light and this way the compound can’t hit the chuck. Lastly, I misspoke on the topic of stock diameter for thread peaks vs. flats. You’ll get pointy threads if the stock is a little too large.
But if I don't comment about it, how am I supposed to make a low-effort no-content post that serves to boost my ego by slightly belittling someone I don't know on the internet? Are you trying to suck all the meaning and fun out of my life?
*cry* My little sherline lathe lacks a lead screw, change gears, reverse, and a compound slide. So tempted to upsize but no room, and every "affordable" used lathe is silly money. Weirdly, they only start getting cheaper again at three-phase and/or 3+ tonnes. I saw a used 10 tonne russian Stanko lathe sell for a couple-hundred dollars recently.
I have cut a lot of threads over the years, but have been away from the lathe for about 8 years, this was very straight forward and informative,,,,,well done Quinn.....cheers from Florida , Paul
I went to school way back in the days of schools still having shop classes. I had wood shop, machine shop, electricity, and printing. In machine shop, the first assignment was to make your own cutting tool for the lathe. So yeah, not only is it possible to grind your own tools, but i shop class it was required.
I love your video style, I am an INTJ personality and get bored very quickly when there is a lot of non informative chatter in a video, I like just the facts. Your videos are complete and to the point, you talk quickly but not to fast, maximum amount of information in the least amount of time. Thank you and keep them coming.
I’ve been waiting 3 months for my chosen first lathe to come back in to stock ( COVID delays 😞) and lately Ive been loosing interest but I can safely say this video has reignited my interest! Can’t wait to hide away in the shed and cut some threads 😎
Don't give up! I thought about it for several years but last year I bought and refurbished an old Swedish late. I was just in my chop just cleaning and looking at this nice old machine. It's great fun to make some chips.
Thank you so much for this. I need to cut a rather obscure LH thread for an old machine and have been practising and failing to even manage the RH version. I was about to call it a day but watched your video to find out what I was doing wrong and then magically, success! Mostly the lesson was taking off the tiniest amount of material each time and making the same cut twice in a row towards the end and using the dial gauge rather than relying on what the indicator said. Thank you.
Hi Quinn, I have followed your channel for a while and I have to say that you really appeal to my visual learning skills being that I’m an older person. My wife often has a chuckle when she comes into my workshop with my tea and scones to see my laptop set on a table with your page open and me pausing….doing….pausing….doing, but hey it works for me. You say you are a hobbyist and if that is the case then your mechanical mind must be like a sponge as you convey so much information in palatable chunks and with such clarity…..admittedly I have to sometimes watch a few times, normally 3 to understand. I like that your cadence is steady throughout too and the video build and blend nicely into themselves. Take care and thankyou so much
Never thought about it before, but yes - absolutely! My Haynes manuals are useless and as such have zero greasy finger marks. My Suzuki cheatsheets (printouts of useful information like torque settings for the kingpin bearings and such) are *covered* in smudges...
@@jimsvideos7201 Bonus points for handwritten notes either expanding on / correcting certain parts, or (my personal favorite) repeating info that's on a different page for added convenience.
Okay , This is my second time watching this video ..... I am going to try cutting threads tomorrow , I ordered a pre ground tool set from amazon . I did make a few chips today and I did much better . You are right , a sharp and correctly installed tool is the key .
Hi Blondi, I have watched every one of your Videos. I just started trying to do Machining as a hobby. You are the best Teacher on the Internet, and I really appreciate what you are doing. Very well explained Videos. Always looking forward to new Videos. 👍
I have just started working as the technician in a school DT department. I used lathes years and years ago and the school has many truly ancient lathes that nobody understands - this series has been the most incredible resource for dredging up my old memories of how to use lathes as well as introducing a few new tricks. Now if I could just get Quinn to come to the workshop and play with the machines for a bit that would be awesome! :)
By far the best threading video i've found! 👍👍 I screwed up some threads this morning and decided to give myself a refresher. I'm so glad I did because the upside-down method is incredibly useful because i couldn't get my speed fast enough for carbide. 😐
Yay! A new Blondihacks video! Another good lesson. It still looks weird seeing threads being cut backwards, but it makes sense. Thanks, and Meow to Sprocket.
"if you're a gamer you have been training for this your whole life - you will be fine". SO cool. I can't adequately express how your content is so concise yet accessible, friendly and fun! :) thankyou!!
I didn't even watch but the first clip of the lead screw cleaning, and have to comment before I watch the rest.. Not sure why I never thought of that or saw it anywhere else. Awesome.
I've been machining for many years but not manual machine so I've never cut a thread manually on a manual leave so when I do it I'm going to use this technique and it will be my first time and I want to thank Blondie acts so much for putting this out here for us it really means a lot to me it honestly seems that machining is a dying trade because so many people don't want to teach the young people how to do it and a lot of the young people already are pretty sure they know everything they need to know but they don't and they're too arrogant to admit it I'm not I know nothing I've been out of the machining game for a while now Plus I've had a stroke and I've lost a lot of memories about machining so this is going to come in very helpful and I'm sure Blondie hacks has a lot of useful videos that I'll be using thank you again Blondi hack😊😊
hi with paul, i am new here in this field, i just bought an import lathe the NU210E the latest Chinese mini lathe based on so many models WM120v and brands names. this one is special and has a mini computer to cut your threads and you don't have to change gears anymore. learn a lot in this video !
Thanks so much for these tips! The second thread especially seems so simple but so useful, by making the empty air as your "gutter" you get to calm some anxiety about running into he chuck!
how do you manage to get the point across so well? i find your lessons so much easier to understand than others. thank you. also you are sooooo cool. i admire you, you just plain rock.
After having been a CNC turner for very long, and enjoying to cut threads just with changing some parameters, this Chinese lathe forced me to cut threads with lead screw and change gears for the first time in my live. I can tell, it is really fun to do so.
Apart from all the great craftsmanship displayed here, I also always am amazed when seeing someone do calculations with imperial units. You guys and girls must all be mathematical geniuses. I could never calculate anything with all these fractions and factors ...
Quinn, a quick and easy way to set gear tooth clearance is a piece of paper between the meshing teeth! Ordinary typing paper is fine. It has always worked well for me. Good video btw.
Hi blondihacks thank uou very much for clarifying a bit of a grey area regarding thread cutting. After watching your video I feel more confident in tackling threading on the lathe
Thank you so much. I learned more from you than metal shop 1 and 2 in 1968/9. Cutting reversed, wow. It's what I needed in an application I couldn't figure out.
Where did you learn this craft? I grew up in a machine shop & have been doing this kind of work for over 50 yrs. I still learn something every time I watch you, GOOD JOB!!!!!!
this channel is doing really well and rightfully so its a great resource. Well done quinn..My trade was as a fitter turner and Machinist and the info given here is great. I usually cut a thread close and then run a die nut over then you know it is the right form on the crests and the roots plus witdth an depth. Which gives optimum strength.
I know I'm late to the party, but that was a terrific video. I've been trying to get my head around thread cutting for years, and finally, at 56 years of age, I feel that I have a chance of succeeding. Thank you so much. P.S. I've subscribed having just discovered you
I've watched so many videos about lathework and nobody has ever told me about this "thread start indicator" and i was wondering so hard for many month now how you find the start of the thread each pass. Thank you so much! Now i only have to find out how they find the thread start on cnc lathes.
I was looking this up last night, I'm not a machinist yet but need to print threads for a model in my resin printer, I have to understand the right way to lay them out. Thank you, this will be useful in future when I get a lathe!
Great and concise for my first thread cutting experience. I bought an old Harrison AA lathe and excited to try it out, after I run through some diesel fuel to free up the gear drive box from freezing sludge. Great to have the reversing feature and gear selectors but do need to swap gears for metric, unlike my friends Leblond. He's a lucky guy!! Cheers Patreon girl!!
I love your video's, it's like a shop class. I really like how you step through the little details on how to do set up and the actual cutting!!!! Keep it up. It's great for me as I haven't ram my lathe since my grandfather taught me when I was much younger than I am now.
This was a most informative topic on lathe work that I've watched yet. I just love your videos, I watch them almost daily although I think I've watched most of them? I also love your sense of humor too, you really tickle me! Thank you Quinn for all your videos.
I have no need to learn how to cut threads, but having Blondihacks do it I'd feel remiss by not learning. Love this channel; something I didn't know I'd be interested in and I could watch it for hours.
As a mill guy, and cnc at that, it feels like im peering behind the curtain, learning forbidden knowledge that only the robots and one engineer from the 60s know.
I love spending my Sunday's watching you explaining how to do things on your lathe ! And so by watching your vids it gives me some confidents of what I can do with my little machine. Just to say I am a noob and have only done a few hours of machining on my lathe I have ordered some thread cutting tools so I will give it a try, as I have been doing my threads by using Dies.
To set the backlash on the gears I was taught to have a sheet of paper between the gears when you close them together. Once locked into position roll the gears so the paper is pushed out and you'll have the backlash perfectly set.
I just got my first lathe and I would consider myself lucky that I just guessed my way through an OK thread. This video has a ton of great info! Ready to try again.
Quinn, I just watched your video on How To Cut Threads On A Lathe. The video was posted 2 years ago. Someone may have already mentioned this. The spray gear lube that you preferred. You said it was messy and had to be careful not get any on the drive belt. Try spraying some in the cap or other small container and then use a machinist's brush to apply it. I hope this helps.
Good Gordon, every single question I have you have an answer to. Thank you for being so awesome. I inherited an old South Bend lathe and am slowly learning how it works, but I have been absolutely confused about reversed threads. You have taught me much, master lol. Thank you Blondihacks!
I started watching your channel like a year ago. Not that female has anything to do with it but I find it intriguing to see how you have educated yourself on the standards and best practices of the industry as well as you have. “ I like your videos, and would like you to keep making them” lol You should make a yo-yo out of 2”or 2-1/2” 6061. Complete with a steel spindle (your 12L14) and small bearing. I think you would ace it. Thanks, Brown hair guy
For cleaning up the gears to get a proper fit I used a small sanding wheel from a dremel kit and put that in a drill chuck and zipped it around in the hole a few times. Seemed to work well just make sure you check frequently as you don’t want them too loose😂
Hi Quinn. Alberto, from Spain. You and your work are great! Very very very well explained. I have bought a lathe and I can say that you have thought me the first steps with your videos. And of course I become a patreon. This work have to be rewarded
that's a record for the fastest i've learned a new trick/skill from a video. 4 seconds! 4! I have 24 lead screws to clean next week on 8 machines. life saver.
19:10 Abom79 has a technique where you can disengage the half nut during metric threading (Shown in a video around 2018-2019 timeframe) to prevent crashing into the chuck. I think it is: when the tool gets to the end, you disengage to prevent the crash, and then shut it down and manually realign to the same number, reengage the half nut, and turn on the lathe in reverse.
I recently got interested in this Art, of machining. And yesterday I just started watching a film from Museum of Our Industrial Heritage..., and also your very nice lessons video. Thank you!
When I first read the title, I was confused why you would yet ANOTHER how to thread video as there are so many, but I like what you did with this video. Beginners will be much less frustrated if they approach it the way you explained everything. Pressing a piece of paper between the change gears is a good way to set the mesh. Tighten everything down, then turn the gears to eject the paper. I also like to draw a sharpie line on the top of the cross slide dovetail to mark where zero is at. It's a nice sanity check to make sure you are at the correct zero and not a full turn out or in from where you should be.
Very good step by step instructions for beginners. Your very thorough. One thing is that some folks when engaging the half nut and using the counter have told me that with even threads use 2 or 4 and odd use 1 or 3. As you demonstrated the way you did it works just fine. I've used the cross Feedmethod and compound method and both work fine.
I think there's a song about you... "She's a bad mamma jamma!" Something like that! I found your channel because you are mentioned as a supporter of the Making It podcast on Patreon. Now I need a metal shop to go with my woodshop!!! You're awesome! Thanks for the videos!
I do not have a lathe. I still watched this video carefully, enjoyed it, and learned something (why clough42 mentioned compound angle and how he was getting the right depth of cut despite cosine error, in his ELS videos). Bravo!
I'm a beginner machinist, however I grew up with an Atlas Metal lathe in my dads shop, he was a Service Engineer for CAT. I learned basic lathe procedures from him and down the road a guy gave me a HF metal lathe that I've been using for the last few years, as I gave my nephew my dad's Atlas Metal lathe when he passed, as he's also an engineer at CAT. I sure wish I had found some of your videos before my recent lathe purchase (my new lathe should be here in a couple of days) as you're the ONLY ONE that mentions making sure your lathe is set up for Imperial machining instead of Metric. Unfortunately the lathe I purchased is set up for Metric machining I believe from what was depicted in the pictures as I didn't even think about it NOT being set up and marked for Imperial machining. Also, this has to be the BEST thread cutting video I've ever seen and there's a couple of lathe gauges & tools I have of my fathers that I now know how to use. THANKS so much!
0:34 I don't have a lathe. I don't even have a space for a lathe, but I watch all your videos! Thanks for showing me how to cut a thread on my imaginary lathe with an imaginary lead screw. It has a brilliant feature that I can change any gears needed with mind power :) Love your videos, keep up the great work
After screw cutting 400+ monel stays for a locomotive Boiler.... Full size, I might add, I thought I new pretty much everything about screw cutting. Yep, I new diddly squat. Thankyou Quinn, it's all so much clearer now. Well explained lesson. Also to give consistent gear mesh, I used a sheet of paper between the wheels to gap them.
My first attempt at screw cutting a square form thread to try and replace a worn cross slide screw went very well. Then I learned that I could buy a replacement from the manufacturer at a very reasonable cost. It still gave me a lot of experience that I will never loose.
Square threads are quite difficult to cut because of the clearance challenges. It’s a big part of why Acme threads were invented. Equally strong but way easier to manufacture.
1:23... i had to grind my own cutting tool to pass a particular evolution of precision machining class in school. Matter of fact, i ground quite a lot of them that day, as i had quite a few friends who I didn't want to fail, and couldn't grind anything worth mentioning...until later in the year, they finally got the hang of it. It was totally worth it, as i wasn't very good at programming the cnc machines at the time, so they ended up helping me. *good times* ☀️😎🇺🇸☀️
Thank you very much for this video. I really appreciate how you are taking the time to explain things that are probably obvious to seasoned machinists, but terribly confusing to newcomers. 👍 One comment in this video I am wondering about: At 12:08 you say that if no blue is left, the initial outer diameter was probably too small. Intuitively, it seems to me like it would be the other way around: If the initial outer diameter is too small, I will be missing the top of the threads making them wider. While if the initial od is too large, I will need to cut deeper in relation to the original outer diameter, resulting narrower/sharper threads, because I might end up turning them even smaller than the original outer diameter. I would be really glad to clear up where my mistake with imagining the geometry there is. Thank you very much and keep up your great work! 🙂
Don’t be afraid of 3 phase equipment! Phase converters are cheap and work well, I have a 3 phase mill, 3 phase lathe, three phase industrial metal cutting bandsaw and a 3 phase paint booth. I built a mechanical phase converter using a 5 hp 3 phase motor with directions I got off the internet which works perfectly, I run the shop equipment off of that. For my spray booth, which I bought new I have an electronic phase converter that cost in the $300 dollar range. If had it to do over I would have put electronic phase converters on the shop equipment as well, they are so cool, soft starts, soft stops and you can set the speed of the motors by controlling the cycles per second. I was able to buy all my shop equipment “because no one wanted the 3 phase,” the only drawback is most of the 3 phase machines are large. Knowledgeable people will tell you it is inefficient to convert single phase to 3 phase, but a home shop is not a production shop and the money you save buying 3 phase equipment will buy a lot of electricity.
Right. I've memorised all of that. All I need now is a Lathe.
id rather have the clap
So disappointed. I have everything I need except a sharpie.. Clearly no way I can start cutting threads. (seriously this another awesome vid. And I have none of what I need).
If one looks at a lathe as a lifelong piece of hobby equipment similiar to a decent table saw, sewing machine etc the lathes in the 10 to 12 inch range are actually pretty cheap. Plus there are always used ones out there. Some are used. Some are used and abused. The machine Quinn has $2400 plus shipping. Myself I'd go for the one that's 8 inches longer for another 100 bucks. This is the kind of money you could easily spend on a weeks vacation somewhere nice. Plus if you find you really do not enjoy making chips you can always sell it pretty easy.
If you live in a large town or a city, there may be extension classes on machining... They often let students use the equipment after class.
I just bought a lathe and a mill all I need now is some time to set it up
At last, someone who tells you what you want to know in a visually and verbally succinct manner without any of the off subject babble they think is entertaining.
Your channel will be my first port of call if I need to know how from now on.
Thank you Quinn
Found your channel while researching for my first lathe purchase. Hands down, the best videos I have viewed. Concise and to the point, without hours of endless babbling about irrelevant nonsense. Thank you Quinn!
lol all the old machinist people trying to impart their "ancient" wisdom.
Twenty minutes and thirty-six seconds of metalwork heaven.
Thank you Ms. Hacks!
I am new to this hobby, just got my 7x14 mini lathe week ago but I have been watching lots of TH-cam videos for past couple months and I must admit you are my favourite teacher. I am sure lots of other people are very knowledgeable but you my friend are born teacher, thank you so much for sharing your knowledge with us.🇦🇺
some very good info which I've not seen mentioned on any other channels, particularly interpreting depth of cut from the chart on the machine and much room you have for engaging drive based on the lead screw dial.
This has to be the best video in teaching thread cutting, so well explained you cannot stuff up, thank you so much
I'll never do this, yet I watched the whole video, as I have done with others. You are smart, articulate, and interesting, you would have been ( and perhaps are) a fine teacher.
The hardest thing I find when learning a new topic is where to start. I find that rough knowledge refined over time with expwrice works better for me than an exact precise methodology upfront as I miss the broadstrokes. I have long since loved your videos for the fact that they make me, someone's who's less than a novice, get a feel for what I'm even learning. Some of your more in depth videos go over my head but I'll get there 😅
I never even thought about the compound angles being different on import lathes, like you said, nobody ever mentions it... Now I know why I’ve been getting sawtooth threads! Thanks Quinn!
@@somebodyelse6673 The tool remains square with the workpiece at all times, which is what you use the fishtail for. The compound angle determines the angle of the feed into the workpiece, which means that you feed in following the angle of the thread profile so you’re only cutting on one side... at least that’s how I think it goes
Quinn, I just wanted you to know that I've been struggling with screwcutting for several years and after watching this video about half a dozen times, I FINALLY managed to cut my first thread today on my little import lathe (I'm a Brit that uses metric, so went for an M12x1.75). It took me three goes to get something workable - and the third one was dog rough, but the nut went on. I can't tell you how delighted I am and you had a huge part in that. Thank you for all your careful explanations!
Having been a tool and die maker for a lot of years, I have chased a lot of threads on a lathe. That being said, I find this a very informative video to teach beginning machinists and hobbyists the proper way to preform that task. You go girl. :-)
Charlie
If you happen to run across any BSW or any British thread the thread angle is fifty five degrees and not sixty
@@Mobile-ct1yfBSPP and BSPT.
I'm wondering how many John Deere and caterpillar tractors are out there with hydraulics that have 60 degree thread angles on their BSPT connections because of me. 😂 Oops.
I find this comment funny coming from a guy with the username "up yours"
That tip about the Chinese lathes and the compound setting is gold 🥇!!! I had mine set up wrongish.
Just bought a lathe and looking for a demo of of thread cutting landed me here. Great video! And now your entire "big steam engine" build has been added to my Watch Later. Look forward to watching it.
Thank you. Its the minor details that are over looked by experts when your starting out cutting threads that I have not been able to find. You have answered most of the major questions I have had. Thanks for the video.
I like how she teach and shows everything as we're beginners, thank u blondie
Quinn, You MUST have a background in teaching, yes? I could learn almost anything with you as the teacher it feels like. Whenever I see this much talent being shared with ordinary people (who aren't paying btw) , it makes me wonder about the motivation that inspires it? Regardless, thank you for making these videos! I'm an aspiring hobbyist who frequently struggles with not owning a lathe. Stumbling across your videos has be a game changer for me. Between your teaching and my mechanical curiosity, I think I've just been letting my anxiety about the whole idea keep me from making the purchase. Once again, thank you for taking the time to make these! Certainly worth our time to watch them!!
I'm very happy to have found your channel, your explanations are very clear. My father was a bit of a tool wizard and gifted me his Sherline mini lathe and mill before he passed. I now have hope that I might be able actually make something with these great tools he left me.
I like the banjo on that lathe. It looks a lot less fiddly than the one on the Grizzly. The manual looks more helpful, too. The diagram with all the parallel threads is an excellent visualization.
Yah, it’s really quite a good design, as change gears go. About as painless as such a system can be, I think. Still want the ELS on there though. 😀
@@Blondihacks there is somebody around making them........dont rmember his name :)
@@Blondihacks I was thinking about making a bowl of popcorn and waiting for the comments to start. :) The fact is, though, everything you teach in this video is all still applicable--even with some electronic help.
"Lets all go to the lobby". Hey kids, remember theaters? That was a place we used to go on dates to watch movies together. What a crazy concept. Great video as usual Quinn.
Some of us are old enough to remember when theaters actual had place to sit and chat. And the weekend double feature with a few cartoons and a news reel. Mom and Dad could drop you off just before noon and not have to worry about the urchins until after four or five. ^_*
Thank you for this video. I have the same PM lathe as you and was able to successfully cut 1/2-13 threads in 316 SS after watching your video (I never tried threading on the lathe before this). Your incremental steps were the perfect primer and enabled me to finish the forward hatch for my steel sailboat. I ended up breaking and having to rebuild the change gear axles in the process and ruined a few inches of nice stainless practicing and determining which of the techniques was best for me, but I can now produce repeatable threads :>). Your videos are a great asset to the world and you help make all of us better machinists! Keep up the good work.
Hey everyone- yes, I know there is a typo on one of the unit conversions. Save your comments about it.
A lot of people are also asking about flipping the compound the other way for cutting left to right. Ideally yes, because then the cutting forces are pushing into the compound backlash direction. In practice it doesn’t matter because the cuts are light and this way the compound can’t hit the chuck.
Lastly, I misspoke on the topic of stock diameter for thread peaks vs. flats. You’ll get pointy threads if the stock is a little too large.
Good point. Hitting the chuck with the compound is bad bueno. I took the corner off the compound of a Hardinge HLV-H that way.
But if I don't comment about it, how am I supposed to make a low-effort no-content post that serves to boost my ego by slightly belittling someone I don't know on the internet? Are you trying to suck all the meaning and fun out of my life?
Save my comments?! ...but, but you made a typo .. ON THE INTERNET! Oh well, I guess I can dial down the abuse to 11, just this once.
*cry* My little sherline lathe lacks a lead screw, change gears, reverse, and a compound slide. So tempted to upsize but no room, and every "affordable" used lathe is silly money. Weirdly, they only start getting cheaper again at three-phase and/or 3+ tonnes. I saw a used 10 tonne russian Stanko lathe sell for a couple-hundred dollars recently.
You could "pin" your comment here to the top, so it doesn't get buried by newer comments.
I have cut a lot of threads over the years, but have been away from the lathe for about 8 years, this was very straight forward and informative,,,,,well done Quinn.....cheers from Florida , Paul
I was going to comment this same thing. Memories, rest between the pages of my mind.
I went to school way back in the days of schools still having shop classes. I had wood shop, machine shop, electricity, and printing. In machine shop, the first assignment was to make your own cutting tool for the lathe. So yeah, not only is it possible to grind your own tools, but i shop class it was required.
I love your video style, I am an INTJ personality and get bored very quickly when there is a lot of non informative chatter in a video, I like just the facts. Your videos are complete and to the point, you talk quickly but not to fast, maximum amount of information in the least amount of time. Thank you and keep them coming.
I’ve been waiting 3 months for my chosen first lathe to come back in to stock ( COVID delays 😞) and lately Ive been loosing interest but I can safely say this video has reignited my interest! Can’t wait to hide away in the shed and cut some threads 😎
Don't give up! I thought about it for several years but last year I bought and refurbished an old Swedish late. I was just in my chop just cleaning and looking at this nice old machine. It's great fun to make some chips.
Thank you so much for this. I need to cut a rather obscure LH thread for an old machine and have been practising and failing to even manage the RH version. I was about to call it a day but watched your video to find out what I was doing wrong and then magically, success! Mostly the lesson was taking off the tiniest amount of material each time and making the same cut twice in a row towards the end and using the dial gauge rather than relying on what the indicator said. Thank you.
Hi Quinn, I have followed your channel for a while and I have to say that you really appeal to my visual learning skills being that I’m an older person. My wife often has a chuckle when she comes into my workshop with my tea and scones to see my laptop set on a table with your page open and me pausing….doing….pausing….doing, but hey it works for me. You say you are a hobbyist and if that is the case then your mechanical mind must be like a sponge as you convey so much information in palatable chunks and with such clarity…..admittedly I have to sometimes watch a few times, normally 3 to understand. I like that your cadence is steady throughout too and the video build and blend nicely into themselves. Take care and thankyou so much
A well-used manual with smudges and fingerprints is a thing of beauty
Corollary: If you're reading the book for something and the pages are clean, you're probably in the wrong part.
@@jimsvideos7201 well said. The grubby fingerprints bit is the most appropriate 'quick index' out there😁
Never thought about it before, but yes - absolutely! My Haynes manuals are useless and as such have zero greasy finger marks. My Suzuki cheatsheets (printouts of useful information like torque settings for the kingpin bearings and such) are *covered* in smudges...
@@jimsvideos7201 Bonus points for handwritten notes either expanding on / correcting certain parts, or (my personal favorite) repeating info that's on a different page for added convenience.
"Users who opened this manual also watched here"
Okay , This is my second time watching this video ..... I am going to try cutting threads tomorrow , I ordered a pre ground tool set from amazon . I did make a few chips today and I did much better . You are right , a sharp and correctly installed tool is the key .
I love the precision of your instructions! You seem to use the right word in the right place at the right time. That is rare in YT videos...
Watch more of my videos- I say quite a few wrong things, but I do try my best. 😁
The guy I bought my lathe from advertised the recipe chart the same way you did. I see why that's so useful now.
Hi Blondi, I have watched every one of your Videos. I just started trying to do Machining as a hobby. You are the best Teacher on the Internet, and I really appreciate what you are doing. Very well explained Videos. Always looking forward to new Videos. 👍
I have just started working as the technician in a school DT department. I used lathes years and years ago and the school has many truly ancient lathes that nobody understands - this series has been the most incredible resource for dredging up my old memories of how to use lathes as well as introducing a few new tricks. Now if I could just get Quinn to come to the workshop and play with the machines for a bit that would be awesome! :)
If they ever think of selling those "ancient" lathes - please let me know!
By far the best threading video i've found! 👍👍 I screwed up some threads this morning and decided to give myself a refresher. I'm so glad I did because the upside-down method is incredibly useful because i couldn't get my speed fast enough for carbide. 😐
subscribed.
Yay!
A new Blondihacks video!
Another good lesson. It still looks weird seeing threads being cut backwards, but it makes sense.
Thanks, and Meow to Sprocket.
"if you're a gamer you have been training for this your whole life - you will be fine". SO cool. I can't adequately express how your content is so concise yet accessible, friendly and fun! :) thankyou!!
I didn't even watch but the first clip of the lead screw cleaning, and have to comment before I watch the rest.. Not sure why I never thought of that or saw it anywhere else.
Awesome.
Even though I was hoping for another steam engine vid . I still appreciated this video. Quinn has a gift for explaining
I completely agree. I think it's the explaining and not just telling what to do.
I've been machining for many years but not manual machine so I've never cut a thread manually on a manual leave so when I do it I'm going to use this technique and it will be my first time and I want to thank Blondie acts so much for putting this out here for us it really means a lot to me it honestly seems that machining is a dying trade because so many people don't want to teach the young people how to do it and a lot of the young people already are pretty sure they know everything they need to know but they don't and they're too arrogant to admit it I'm not I know nothing I've been out of the machining game for a while now Plus I've had a stroke and I've lost a lot of memories about machining so this is going to come in very helpful and I'm sure Blondie hacks has a lot of useful videos that I'll be using thank you again Blondi hack😊😊
hi with paul, i am new here in this field, i just bought an import lathe the NU210E the latest Chinese mini lathe based on so many models WM120v and brands names.
this one is special and has a mini computer to cut your threads and you don't have to change gears anymore.
learn a lot in this video !
Thanks so much for these tips!
The second thread especially seems so simple but so useful, by making the empty air as your "gutter" you get to calm some anxiety about running into he chuck!
how do you manage to get the point across so well? i find your lessons so much easier to understand than others. thank you. also you are sooooo cool. i admire you, you just plain rock.
After having been a CNC turner for very long, and enjoying to cut threads just with changing some parameters, this Chinese lathe forced me to cut threads with lead screw and change gears for the first time in my live. I can tell, it is really fun to do so.
Apart from all the great craftsmanship displayed here, I also always am amazed when seeing someone do calculations with imperial units. You guys and girls must all be mathematical geniuses. I could never calculate anything with all these fractions and factors ...
great video! I usually cant watch things like this without getting sleepy but the way you explain keeps me interested! Great job!
Quinn, a quick and easy way to set gear tooth clearance is a piece of paper between the meshing teeth! Ordinary typing paper is fine. It has always worked well for me. Good video btw.
Hi blondihacks thank uou very much for clarifying a bit of a grey area regarding thread cutting. After watching your video I feel more confident in tackling threading on the lathe
Thank you so much. I learned more from you than metal shop 1 and 2 in 1968/9. Cutting reversed, wow. It's what I needed in an application I couldn't figure out.
Where did you learn this craft? I grew up in a machine shop & have been doing this kind of work for over 50 yrs. I still learn something every time I watch you, GOOD JOB!!!!!!
this channel is doing really well and rightfully so its a great resource. Well done quinn..My trade was as a fitter turner and Machinist and the info given here is great. I usually cut a thread close and then run a die nut over then you know it is the right form on the crests and the roots plus witdth an depth. Which gives optimum strength.
I know I'm late to the party, but that was a terrific video. I've been trying to get my head around thread cutting for years, and finally, at 56 years of age, I feel that I have a chance of succeeding. Thank you so much. P.S. I've subscribed having just discovered you
Although a little fast, that was the best description, so far, that I have heard about the use of the indicator dial on the half nut.
YES 14:25 Is just what you said no one mentions! Thanks for the clarity!
I've watched so many videos about lathework and nobody has ever told me about this "thread start indicator" and i was wondering so hard for many month now how you find the start of the thread each pass. Thank you so much! Now i only have to find out how they find the thread start on cnc lathes.
What a coincidence I just cut my first thread on my new (old) Logan 210 yesterday and here you are with a new Video about cutting threads.
My most lovely moments of that type of videos is when they marking the surface with blue color
I was looking this up last night, I'm not a machinist yet but need to print threads for a model in my resin printer, I have to understand the right way to lay them out. Thank you, this will be useful in future when I get a lathe!
Great and concise for my first thread cutting experience. I bought an old Harrison AA lathe and excited to try it out, after I run through some diesel fuel to free up the gear drive box from freezing sludge. Great to have the reversing feature and gear selectors but do need to swap gears for metric, unlike my friends Leblond. He's a lucky guy!! Cheers Patreon girl!!
Blondi youre videos are terrific.Not rushed ..excellant
Quinn you're the best. Really! All those reasons behind the methods. I usually watch more than once just for the enjoyment. Thanks.
Thank you much 🙏 just cut my first thread 7/16-14 on some stainless. Very informative and well put together channel.
Great video !!!
I usually spray the gear lube into a small cup then apply with a cheap brush. Saves a lot of mess.
I love your video's, it's like a shop class. I really like how you step through the little details on how to do set up and the actual cutting!!!! Keep it up.
It's great for me as I haven't ram my lathe since my grandfather taught me when I was much younger than I am now.
This was a most informative topic on lathe work that I've watched yet. I just love your videos, I watch them almost daily although I think I've watched most of them? I also love your sense of humor too, you really tickle me! Thank you Quinn for all your videos.
I've always wondered what kind of black magic was involved in the tool and threads aligning at the start of each new pass. Now I know. Thank you.
I have no need to learn how to cut threads, but having Blondihacks do it I'd feel remiss by not learning. Love this channel; something I didn't know I'd be interested in and I could watch it for hours.
As a mill guy, and cnc at that, it feels like im peering behind the curtain, learning forbidden knowledge that only the robots and one engineer from the 60s know.
I love spending my Sunday's watching you explaining how to do things on your lathe !
And so by watching your vids it gives me some confidents of what I can do with my little machine.
Just to say I am a noob and have only done a few hours of machining on my lathe
I have ordered some thread cutting tools so I will give it a try, as I have been doing my threads by using Dies.
To set the backlash on the gears I was taught to have a sheet of paper between the gears when you close them together. Once locked into position roll the gears so the paper is pushed out and you'll have the backlash perfectly set.
Yah, that method never works for me. 🤷♀️
There’s a catch. You have to use A4 paper for Metric threads, but Letter for Imperial.
I just got my first lathe and I would consider myself lucky that I just guessed my way through an OK thread. This video has a ton of great info! Ready to try again.
Just over halfway through, but this is by far the best video Ive seen explaining the threading dial, very awesome Quinn :D
Also, best explanation of the mismatched threads. Awesome video as always Quinn :)
Quinn, I just watched your video on How To Cut Threads On A Lathe. The video was posted 2 years ago. Someone may have already mentioned this. The spray gear lube that you preferred. You said it was messy and had to be careful not get any on the drive belt. Try spraying some in the cap or other small container and then use a machinist's brush to apply it. I hope this helps.
Good Gordon, every single question I have you have an answer to. Thank you for being so awesome. I inherited an old South Bend lathe and am slowly learning how it works, but I have been absolutely confused about reversed threads. You have taught me much, master lol. Thank you Blondihacks!
I started watching your channel like a year ago. Not that female has anything to do with it but I find it intriguing to see how you have educated yourself on the standards and best practices of the industry as well as you have.
“ I like your videos, and would like you to keep making them” lol
You should make a yo-yo out of 2”or 2-1/2” 6061. Complete with a steel spindle (your 12L14) and small bearing. I think you would ace it.
Thanks,
Brown hair guy
Very good tutorial ! Been doing this on larger machines since 1980.
For cleaning up the gears to get a proper fit I used a small sanding wheel from a dremel kit and put that in a drill chuck and zipped it around in the hole a few times. Seemed to work well just make sure you check frequently as you don’t want them too loose😂
Thank you I have been wanting to buy my 1st practice lathe, now I will,
Thanks to you, you have a new subscriber,
Hi Quinn. Alberto, from Spain.
You and your work are great! Very very very well explained. I have bought a lathe and I can say that you have thought me the first steps with your videos. And of course I become a patreon. This work have to be rewarded
I have just subscribed to this channel because it popped up in the feed, and I recognized the name from a podcast! It worked!
that's a record for the fastest i've learned a new trick/skill from a video. 4 seconds! 4! I have 24 lead screws to clean next week on 8 machines. life saver.
19:10 Abom79 has a technique where you can disengage the half nut during metric threading (Shown in a video around 2018-2019 timeframe) to prevent crashing into the chuck. I think it is: when the tool gets to the end, you disengage to prevent the crash, and then shut it down and manually realign to the same number, reengage the half nut, and turn on the lathe in reverse.
I recently got interested in this Art, of machining. And yesterday I just started watching a film from Museum of Our Industrial Heritage..., and also your very nice lessons video. Thank you!
When I first read the title, I was confused why you would yet ANOTHER how to thread video as there are so many, but I like what you did with this video. Beginners will be much less frustrated if they approach it the way you explained everything.
Pressing a piece of paper between the change gears is a good way to set the mesh. Tighten everything down, then turn the gears to eject the paper.
I also like to draw a sharpie line on the top of the cross slide dovetail to mark where zero is at. It's a nice sanity check to make sure you are at the correct zero and not a full turn out or in from where you should be.
Hi Quinn - I recently discovered your channel. You're an EXCELLENT teacher. Keep up the great work!
Very good step by step instructions for beginners. Your very thorough. One thing is that some folks when engaging the half nut and using the counter have told me that with even threads use 2 or 4 and odd use 1 or 3. As you demonstrated the way you did it works just fine. I've used the cross Feedmethod and compound method and both work fine.
I think there's a song about you... "She's a bad mamma jamma!" Something like that! I found your channel because you are mentioned as a supporter of the Making It podcast on Patreon. Now I need a metal shop to go with my woodshop!!! You're awesome! Thanks for the videos!
I do not have a lathe. I still watched this video carefully, enjoyed it, and learned something (why clough42 mentioned compound angle and how he was getting the right depth of cut despite cosine error, in his ELS videos). Bravo!
I'm a beginner machinist, however I grew up with an Atlas Metal lathe in my dads shop, he was a Service Engineer for CAT. I learned basic lathe procedures from him and down the road a guy gave me a HF metal lathe that I've been using for the last few years, as I gave my nephew my dad's Atlas Metal lathe when he passed, as he's also an engineer at CAT. I sure wish I had found some of your videos before my recent lathe purchase (my new lathe should be here in a couple of days) as you're the ONLY ONE that mentions making sure your lathe is set up for Imperial machining instead of Metric. Unfortunately the lathe I purchased is set up for Metric machining I believe from what was depicted in the pictures as I didn't even think about it NOT being set up and marked for Imperial machining. Also, this has to be the BEST thread cutting video I've ever seen and there's a couple of lathe gauges & tools I have of my fathers that I now know how to use. THANKS so much!
0:34 I don't have a lathe. I don't even have a space for a lathe, but I watch all your videos! Thanks for showing me how to cut a thread on my imaginary lathe with an imaginary lead screw. It has a brilliant feature that I can change any gears needed with mind power :)
Love your videos, keep up the great work
After screw cutting 400+ monel stays for a locomotive Boiler.... Full size, I might add, I thought I new pretty much everything about screw cutting. Yep, I new diddly squat. Thankyou Quinn, it's all so much clearer now. Well explained lesson.
Also to give consistent gear mesh, I used a sheet of paper between the wheels to gap them.
My first attempt at screw cutting a square form thread to try and replace a worn cross slide screw went very well. Then I learned that I could buy a replacement from the manufacturer at a very reasonable cost. It still gave me a lot of experience that I will never loose.
Square threads are quite difficult to cut because of the clearance challenges. It’s a big part of why Acme threads were invented. Equally strong but way easier to manufacture.
@@Blondihacks Yup the tool was interesting to grind. Also it was a left hand thread so baptism of fire!
Thanks. You really helped me to cut my first thread on my 7x14 mini lathe. After "little" modifications there aren't that bad.
I just ordered a lathe. Can’t wait to try this. Thank you!
I have only cut a few simple threads with my lathe so far. Most of the time I just use a die. This was very helpful!
1:23... i had to grind my own cutting tool to pass a particular evolution of precision machining class in school.
Matter of fact, i ground quite a lot of them that day, as i had quite a few friends who I didn't want to fail, and couldn't grind anything worth mentioning...until later in the year, they finally got the hang of it.
It was totally worth it, as i wasn't very good at programming the cnc machines at the time, so they ended up helping me.
*good times*
☀️😎🇺🇸☀️
Thank you very much for this video. I really appreciate how you are taking the time to explain things that are probably obvious to seasoned machinists, but terribly confusing to newcomers. 👍
One comment in this video I am wondering about: At 12:08 you say that if no blue is left, the initial outer diameter was probably too small.
Intuitively, it seems to me like it would be the other way around:
If the initial outer diameter is too small, I will be missing the top of the threads making them wider.
While if the initial od is too large, I will need to cut deeper in relation to the original outer diameter, resulting narrower/sharper threads, because I might end up turning them even smaller than the original outer diameter.
I would be really glad to clear up where my mistake with imagining the geometry there is.
Thank you very much and keep up your great work! 🙂
You know your subject and your a very good teacher. I subscribe in less than 2 minutes. I look forward to learning from you. Thanks
You have an awesome teaching style and voice. Looking forward to more of your content. Thanks for the time.
Don’t be afraid of 3 phase equipment! Phase converters are cheap and work well, I have a 3 phase mill, 3 phase lathe, three phase industrial metal cutting bandsaw and a 3 phase paint booth. I built a mechanical phase converter using a 5 hp 3 phase motor with directions I got off the internet which works perfectly, I run the shop equipment off of that. For my spray booth, which I bought new I have an electronic phase converter that cost in the $300 dollar range. If had it to do over I would have put electronic phase converters on the shop equipment as well, they are so cool, soft starts, soft stops and you can set the speed of the motors by controlling the cycles per second. I was able to buy all my shop equipment “because no one wanted the 3 phase,” the only drawback is most of the 3 phase machines are large. Knowledgeable people will tell you it is inefficient to convert single phase to 3 phase, but a home shop is not a production shop and the money you save buying 3 phase equipment will buy a lot of electricity.