Just A "SIMPLE" Repair
ฝัง
- เผยแพร่เมื่อ 28 พ.ค. 2024
- Use code Inheritance10 and get 10% off Shapr3D when you download Shapr3D for iPad, macOS, & Windows: link.shapr3d.com/cd83c2
This video is sponsored by Shapr3D.
Ignoring the larger issues with the "new" lathe in favor of a simple project. Remaking the lead screw and nuts for the compound slide. Little did I know simple... does not mean easy...
#inheritancemachining #machineshop #hobbymachinist
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Thank you again to the Micrometer level Patreon members listed at the end of the video!
TIMESTAMPS
0:00 Spoiler Alert
1:20 Le Probleme
3:30 Civility
5:29 A Worthy Investment
7:39A before B (but also C and D)
11:07 Trigonom-ish
13:08 Two Firsts
16:48 A Milling Problem But a Center Ain't One
18:27 Brrrr
20:00 Killing Time...
21:31 Climax
24:18 MOAR THREADS
26:39 Bringing It All Together
FAQ
Drafting Equipment (affiliate links): amzn.to/3P0HvMe
A/V Equipment (affiliate links): amzn.to/3Pi45jB
Editing: Final Cut Pro X
Intro Song: Way Back Way Back When (Instrumental Version) - Gamma Skies
www.epidemicsound.com/track/S...\
• Just A "SIMPLE" Repair
© 2023 Inheritance Machining, LLC. All Rights Reserved. - วิทยาศาสตร์และเทคโนโลยี
Use code Inheritance10 and get 10% off Shapr3D when you download Shapr3D for iPad, macOS, & Windows: link.shapr3d.com/cd83c2
I haven't watched the video yet but I use this and pay for it and GUYS! It's actually pretty nice to use in my opinion.
I love the channel but had to say this. When I take my pocket knife out and open it, I expect there to be a blade attached. I expect it to be that way every time, without fail and if not, that “tool” isn’t functional. Maybe I’m too much of an old school hobbyist but I’m not buying any tools that require a subscription to operate. I know, software updates and whatnot. Here is the thing, if it doesn’t already do what I need it to at time of install, it doesn’t work. If it does, it needs no updates.
@@jimk8520tell me you don’t understand digital products without telling me you don’t understand digital products 😂 sounds like you and your pencil and paper will be very happy together
The program seems great, as you said, very intuitive, but it requires modern windows or other and it`s not a bought software, but leased... I would love to get something like this, but the shapr scoundrels can go and snog some wart ridden wenches, as they ain`t getting my coin... Making of tech drawings or drafts is a both a pleasure and a bloody fucking terror, as some things such as depth are quite hard to depict with more complex geometries, but fuck it, if they can`t be gentlemen enough to offer a lifetime licence and a version that doesn`t reject older, yet sufficient operating software for no reason, i can`t be bothered to fund such a company...
Otherwise, a nice project on your behalf, and definitely a great looking program on theirs, but i`ll stick with you and my set of mechanical pencils...
All the best!
P.s.
For tap grinding, i would go with a surface grinder in your case... Just get one of those pink chainsaw blade grinder discs, make a custom arbor or a few plates for side support of the flimsy wheel and voila, you have a nice, thick disc, or a think wheel for such cases... Now you just have to make a radius diamond dresser for the said wheel...
I couldn't agree more, I'm hobbiest enough I may go a month without getting into the shop and still had to pay for that month @@jimk8520
This lathe project might be my favorite so far! Super excited to see this old beaut restored to full glory. Excited to see what you make with it after that too!
Golly, gee, me, too! I am excited he can fix it....
the side project, with the 7 side-side projects. I love it.
😁 Thanks a lot! We are only just getting started!
I doubt anyone ever says this, but thanks for the high quality closed captions in your video. My hearing's fine, but for some reason I still prefer to have CC on, just to quickly read something back if I missed it or didn't understand it. It also allows for machine translated CCs, which may not be perfect, but are better than nothing for a lot of people. So thanks for putting in that extra effort.
I am profoundly deaf, and I also appreciate the quality and clarity of the captions.
The sound quality is excellent, too. The voice is so calming to listen to. And for a special treat, there's no TH-cam music. At 42,000 views in the first four hours, this must be what viewers want.
Same. It's actually more common than you think for people these days to use captions with no hearing problems. I use them on here nonstop.
My pleasure, Tim. Glad to hear they are actually useful to people!
@@J.C... My hearing is OK, but I had to rewind and turn on CC to get the 'yak shaving' comment. 🙂
Babe, wake up! New Inheritance Machining video just dropped!
But literally 😂 she loves this channel too
Cheap joke
@@AmIAntiAntianti womp womp
@@AmIAntiAntianti Womp womp
@@AmIAntiAntiantiwomp womp
Honestly it was a true stroke of genius to buy the lathe to create a need for all of the projects and i will be here for all of it.
😂 Thanks! Thought o be honest I didn't buy that lathe. It was "gifted" to me
All hail santa craig@@InheritanceMachining
Super cool to see so many of the previous projects actually get used in this
I make them for a reason!
Heeeeey blondihacks is one of my favorite channels. You and her have a very similar style -- showing the mistakes, explaining why, re-doing the work, puns and visual humor. Dig it.
SAME!!! totally agree!
She's a big inspiration for my own channel honestly. Been watching her for years!
@@InheritanceMachining That's awesome! I'm glad to hear it because that just means she gave me another great channel to watch, haha. Do you have any other channels that inspired you in particularly?
@@Raye938 I bet Clickspring is on the list.
@@Raye938my guess would be this old tony. Since he isnt uploading as often anymore i switched to this channel here :P
I'm proud being a machinist, having you represent our trade : )
You give me ideas on different ways to use tools and setups, and give me insight on how to make stuff ive never tried before.
Keep the vids coming
Greetings from Norway
That is very sweet of you to say. Thank you Thomas!
Side projects are just extra projects. If you think about it, fixing this cross slide is just a side project to commissioning the new lathe 😉
Great video as always!
Comissioning the lathe is a side project to whatever side project he'll make on the lathe for whatever main project he has-
In the same respect everything is just a side project for something else 😁 Thanks!
literally on a binge watch of all your vids right now, perfect time to add another one to the docket! love your stuff, really great insight into the production process!
i did the same about a 4 weeks ago, his comentary to the prodjects is just perfect
I also did the same a couple of months ago, and he's by far my favorite machining channel. Even better than Clough42 and This Old Tony, though they're all great
This must’ve been a fantastic binge 👍🏻
Thanks man! Enjoy the ride!
Brandon, this may be your best produced video yet! Every single shot is so thoughtfully framed and the pacing of editing is impeccable. Kudos. You set the bar unrealistically for the rest of us mere mortal TH-camrs! 😮🙂
The 'Bob Ross' of machining and lathe work. So peaceful and entertaining.
😁 Thanks!
I love your side projects!
And as sad as I am not to see the box of shame, I'm happy to not see the box of shame!
Personally, I love seeing you learn new things, it makes me feel like I'm not watching a produced TV show, but an actual guy that is trying his best and keep getting better and better!
Thank you for all the hard work you put in the videos, you're doing a great job
That's what it's all about man! Thanks so much for the kind words (as always)
Seeing the seam between the two pieces of brass vanish when turning is always super satisfying!
Also, do you have plans for the worn parts being replaced? The handles alone tell a quiet story of years of work and accomplishment, I feel that everything could be brought together at the end as an art piece of some kind
😁 I'm not sure how much I'll be replacing honestly. Part of me want to keep some things in their rough condition because its cool. But also making an absolutely mint machine is cool too 😂
@@InheritanceMachining I feel like having a mix of the old worn parts that are still good next to the new ones tells an awesome story of the machine and would give the lathe a lot of character.
The quality of your work says it's going to be beautiful. I think reaching a stage where everything's in spec, but the machine shows it's age, life and use will be a very delicate balance! I think everyone here is looking forward to seeing the results whatever you choose to do!
To my mind if it’s broken, worn or bent then remake it. If it’s scared, scratched or etched then enjoy the patina.
@@paulforster4133
Yeah that' what I was intending, seems I worded it a bit off. The parts that are replaced could still make for some kind of art piece as a think you for the lathe tho!
It is always a delight to watch a simple bit of metal turn into a finished unit.
Dude. The drafting is half of why I love this channel. Don’t stop the drafting or explaining it as you do it.
The way you explain what you are doing is great to learn and to understand. You keep the voice quite neutral so its dedicated to what you are doing, plus you have humor. This way I can learn the most of it. Your and Matthias Wandels Channel (he is more into woodworking) are the best channels I currently know.
Thank you so much! I put a lot of effort into getting the explanations right!
One thing I've learned from watching this channel and several others is that I don't have the math skills to be any sort of machinist. One tool just leads to another to make another and so on. It never ends.
Don't let math hold you back from giving something a try if you really want to. I wanted to follow in my Dad's footsteps as a kid and be a programmer when I grew up but I'm terrible at math and thought I wouldn't be able to hack it, thinking I'd be doing all kinds of math every day. Like I literally can't add/subtract in my head and algebra gave me panic attacks throughout school.
Put it off for years but I finally took the plunge in my early 20s and I've used advanced math like once in my 18 year career. Actually had to do more complicated stuff in my personal life working on my house. Found some TH-cam videos that taught in a way I'd never experienced in school and stuff finally clicked. Still can't do stuff quickly because the practice I did in school never took hold or my brain just doesn't work like that, but I can figure stuff out now when I need too.
Just wanted to encourage you or anyone else from someone who earned my fair share of D's and F's in the subject.
Hello good sir. Just a piece of advice from a blacksmith, when you are quenching a longer piece of metal such as in this video. Be careful with submerging it into the quenching fluid, to be more specific be aware of any side to side movements because this can sometimes bend the piece you are quenching. The chance of a machined piece of steel bending during the quenching process is a lot lower than on a forged knife but there still is a chance. P.S. yes i have ruined a knife this way : )
Really cool that you gave a shout out to blondihacks. She does some incredible work for the small equipment that she uses. I would love to see what she could do with a full-size lathe and mill.
She's a big inspiration for my channel honestly. Been watching her for years!
@@InheritanceMachining As another long-time watcher and support of hers, That's really neat to hear. :)
One of the best machinist channels on TH-cam 🔥🔥
It's been a while since we had a proper "more side projects than the project itself" video, and I have to say I really enjoy them. Thanks, man!
Big Respect for such an insane project, i really hope that i can handle projects like this myself one day, im restoring an old German Boley lathe myself at the moment (or at least as much as i can) you definetly inspired me to do machining and stuff besides my job as an mechanic which made me already learn so much stuff that i didnt learn in my apprentice ship.
Greetings from Germany
10:00 as a potter, I do this to check for invisible cracks: continuity conducts, damage dulls.
Ha that's cool. Didn't know what was useful elsewhere
Brandon, pure magic here. Wonderful job, wonderful result. 3D CAD does have advantages for finding compound angles and a lot more. Accurate without the otherwise required math. Using the oldskool drawing board is also fun but when you need to get a job done for a living I go for the CAD solution daily. You're becoming a master in the trade! I enjoyed every second of this video. I also replaced a few spindles on my machines but bought a length of the required (left hand) thread at Misumi and loctited it into a working assembly. Nuts I bought too and modified them to the right dimensions. They perform fine for years now. I'm a jobber and I try to find the fastest and therefore most economical way to get my machines up running. But honestly I would like to have enough time to repair a spindle the way you did. It's so much fun and really satisfying to conquer all the challenges in your own shop and end with a better than new result. Hats of to you sir. All the best! Although not realistic I'm afraid; I wish everyone a happy christmas and a happy new year, Job
Once again you don't disappoint. Ang give me encouragement to make something cool in the shop
Thanks, Joseph!
that spin at 3:12 is unexpected but satisfying..
i use a horizontal boring mill at work. the vertical acme screw has .211" of backlash, the x-axis screw has .127" of backlash, and the z-axis screw has about .165" backlash. you're not supposed to climb mill on an acme thread, though you can, but the amount of backlash means that any wrong cut can shoot the table or headstock sideways, potentially breaking the mill, the part, or the tool.
it's been this way for as long as i've worked there - nearly 10 years - beecause any time someone talked about the backlash in the machine, the nuts either got adjusted or they have been replaced a few times. all of the wear is in the screw itself, but my foreman only ever says it'll be adjusted. all of the work and wear is done on one part of the screw so the extremes you have to adjust to are near pristine.
i talked to my boss about it a few weeks ago, and the screws are finally getting replaced after what's probably been a large part of the machine's lifetime
Your channel is a fantastic example of what youtube is for. Thank you for sharing ❤
You are very kind. Thank you
Great job on the lathe. Loved the reference to everybody's other favorite hobby machinist.
Excellent work! Both the machining AND the story telling.
Thanks, Shinnah!
Haha! As a CAD guy who's done both board drafting and CAD, I literally LOL'd at 7:17 and snarfed my ramen soup out the nose! Great humor! Love It!
😂 sorry about that!
That shot at 25:37 is so satisfying… Love the optical illusion which makes it look like the screw is turning inside the nuts
These videos always make my day. I wish they were three hours long.
Another really great video! So cool that you managed to make those plus the tools.
Thanks!
The only differance tween your “side projects” and my Dads “rabbit holes” is what they’re called. It seems there was always something to “repair” on our combine, corn picker, or one of our 5 tractors before we could get the job done. Good thing Dad was a Machinest at the factory he retired from after 37 yrs. It gave him a sense of how to fix any giving thing. Thanks for the way you stay with it ; knowing some thing is gonna need special attention to complete the job 👍
"How I built a lathe" the series. I love it!
"Yak shaving" - I guess it's not just a computer programming concept. Remember, we do these things not because they are easy, but because we thought they would be easy.
😂
Technically speaking, if you reference a Blondihacks video, you’re obliged to utter at least one “yachtzee” when parting off.😅
These are some of the most artistic videos on TH-cam. Not only because the art that Brandon fabricates in the videos, but the art of the video itself, including the sound design, commentary and editing. Bravo 👏
Thank you very much 🙏
Said it in the first couple Videos, but saying it again: using tools to make tool upgrades, just like 3D printer. Love it!
That's the funnest part!
@@InheritanceMachining it sure is!
Does he know how good this is… I don’t think he does…
I'm okay with more side projects... just means the videos are longer!! 😂
Can tell this is a machinist to his core. When he talks about the duration of a project he automatically applies tapper logic. Only half of the actual time....love it
Very nicely done! Glad to see you back at the surface grinder.
Just some tips I wanted to share from what I've learned so far from my journeyman.
Next time you need to take a lot off on a surface grinder, try plunge grinding. Use the full width of the wheel to plunge down to 5-8 thou above your target number, then stop and let the part cool completely. Then you can re-dress a sharp edge on your wheel amd take it down to final dimension. Plunge grinding saves a lot of time, and especially for you since you have a coolant system set up.
Ah! Noted! Thank you
My envy for the balancing stand cannot be overstated.
Have you priced those?
It's insane.
I have never looked one up until now.... jesus 😂 that would defintiely be something I made (if I didn't already have 2!!)
@@InheritanceMachining right?! Sheesh!
After a long Day, I love sitting on my Couch and watching your Videos to calm down.
Thanks.
Don't give up, man. I believe in you. Only forward!
first
Dammit lol
"Bring on the side projects"?! Bring on all of the projects, please!
Best start to the weekend I can imagine, these videos!
Fantastic result. The first (and only) tap I have made is a little (about 8mm) left handed square thread double start one. It took me days cutting test threads to get my head around working with the compound slide backlash and then getting evenly sized threads before I could cut the screw and tap. I used a square endmill to cut the flutes and it was ok, and I did think to put the relief on the back of the cutting edges. It was still hard going because I didn't know about those 2 stage taps. Then I spent far too long wondering why it wouldn't cut before realising I was turning it the wrong way!
The thread cutter I made broke on the last finishing pass on the tap - luckily I'd made the screw first. I think the steel for the screw was free cutting 12L14, because it's not heavy duty and I wanted easy cutting and a good finish. It's for a steam loco reversing screw.
The thread cutter was made from round silver steel so it could be rotated in it's holder to suit the helix angle. Not my idea, but it worked well. The cutter was made to no fixed dimensions or flank angles so sadly this screw/nut is a one-off, even though I still have the tap.
It fit so well and was so smooth anyone who picked it up couldn't stop playing with it :)
Having tools (and skill) to make tools, so that you can fix tools, has got to be one of the best combinations.
Your channel is what I'd imagine I'd do if I won the lottery. Thank you for letting me live vicariously through you until I have some time, machines, and skill lol
From one engineer to another, bloody brilliant. I was making gears and industrial gearboxes, plus more stuff, for all my working life. I was using Autocad for tools, fixtures, etc, Sketch up looks very good. The original threads on the shafts were, as you said, ground. We used to make a lot of our own tooling and watching you, was like watching a mirror, as I done mostly the same as you have done. We were capable of grinding the flutes on taps, we used to make dies as well. The making of the Acme threading tool was well thought out. Really enjoyed this post thank you 👍
This is exactly what I have been working on for my Monarch lathe, the only difference is I'm doing left hand acme on my tail stock. Great work! I also made my cutter on the surface grinder.
Bravo on making the proper disassembly tools and the skill to do so. Hope you and your family have a Merry Christmas!
Thanks Jim. Same to you!
Ohhh nice, an early Christmas present to us.
Have a very Merry Christmas and a Happy New Year. Here's looking to the up coming projects and thanks for the ones in the last 12 months.
Thanks Bill! Merry Christmas to you too!
I really enjoyed this one, mainly because I've had a similar project in mind for many years now. I have an older import combo machine that is metric. Because imperial is so much more intuitive to me, I've wanted to fully convert the axis screws to imperial, or at the least make a new brass nut for one or both axis. There are so many obstacles for a novice to rebuilding acme thread parts, but I really hope to try my hand at it. Funny how something that has been a 10 year mission gets completed in a 1 hour video with all the skills, tools and equipment readily available. Kudos to you for attacking this one! I may just get there one day. 👍
I binge watched all your videos and now I'm stuck waiting for new uploads. What have I done to myself. Love the content!
😂 Admittedly that is a lot of videos! Thanks man
I’m glad i waited till the Sunday before Christmas to watch this video, having breakfast on a Sunday morning listening to Brandon talk and make new tools while fixing a tired old tool... now I don’t need anything from Santa hehe. Merry Christmas Brandon and behind camera wife! Thanks for all the fun videos you guys made and those many more to come!
Making the replacement parts successfully was very impressive, but I think all the side projects helped make for a great video.
I cant wait to see what you do next with this lathe restoration.
Watching you restore a machine is just as interesting as making projects on your machines. I’m strangely glad this machine needed your care and attention!
You and me both 😊
It's funny, I was excited you got the new lathe, but was more excited to see how much work you have ahead of you restoring it.
First, love your approach to drawing and maching, second, you never grow in your comfort zone, keep pushing forward and keep the side projects.
How about a year in review of the side projects?
I may speak for most of your viewers when I say this, but we do love the 'Side projects' counters.
it's just as interesting to see the road map to the end as it is to see the finish..
Fantastic video! You’re my new favorite machinist TH-cam channel, the quality of videos is amazing. Don’t change a thing
I don't know how much "I'm frustrated and have no idea how to do this yet" you hide behind the scenes but the fact you were able to do that much quality video while simultaneously learning how to machine a precision ACME lead screw AND PULLING IT OFF (first try?) is pretty darn inspiring. It would appear you were born to do this kind of work.
i have never heard "yak shaving" before lol!
but i am very pleased to see a new video this morning
There are some pretty good "meme" about it on the internet. Theres a scene from Malcom In The Middle that I always think of 😂
@@InheritanceMachiningohhhh "can o worms"
I normally am not into watching machining videos, but you make them so enjoyable!
This is Zen and the Art of Motorcycle Maintenance for TH-cam. I love it. 👍😊
I'll take that! Thanks
Thing of beauty. Happy holidays!
I love watching you do your drawings. Thank you. Merry Christmas
One of two channels in TH-cam whose videos im always excited to watch 🙂. Already waiting for next one.
Thanks so much!
Yes, the threads are ground, At least all the ones I've made(work at a machine shop and make repair parts and such for these compound slides) we finish grind all the diameters and thread grind the threads. The bushings are threaded on CNC lathe with a special insert on a boring bar.
Yes!!!! New video!!❤
Merry Christmas buddy!!🎉
Same to you!!
I used to run cnc swiss and mills, now i'm a CMM programmer and QM at my shop. Love your videos!
That's awesome man! Though you end up being the guy that tells all the machinists their parts are out of spec 😂
@InheritanceMachining true. But when you're dealing with stackups and tolerances inside 50 microns... nobody is perfect haha
Always so excited to see your videos when they pop up. Might just be my adhd kicking in but I would have checked the timing on the threads to the dial just to make the increments matched up with the dial and an indicator.
that old shaft was unbelievably worn out. I didn't think i'd be able to so clearly see the wear and tear on it. And seeing the backlash was soul crushing, you nailed it
I love how beautiful and precise most if not all the parts you make are. Chamfers baby!
Thank you! I try my best 😁
This channel is what TH-cam was made for. This is the second video I’ve watched. I subscribed after the first one and just paused halfway through this one to go to your channel and see how deep the rabbit hole I’m about to fall down is. 🤗 oooh… a whole years worth of something I know nothing about. It looks like I’m in for another round of my family walking through the room asking “What are you watching???”
Ha! You're in for a ride! Thanks for being here!!
This video is so perfect lol. I literally have 3 lead screw nuts i need to make between my small and medium lathes. I noticed the acme tap design online as well but thought "bearing bronze is soft". Needless to say my first attempt at an acme tap was a fail. Luckily i still have the hss lathe bit i made and never reshaped it.
I also like seeing your hss bit worked fine without a rake across the top (neutral) as the machinist i work with wouldnt let it go until i added a positive rake to mine lol.
Being a smaller shop and also trying to raise a family in this economy, i cant exactly afford new machines (yet). So i am absolutely loving these machine repair videos you have been doing. And thank you for working out the math grinding acme cutters like that. That way will save me a ton of time even on the cutter grinder we have at work. One question though... wouldnt you want a left hand thread for lead screws? So turning the handwheel to the right pushes the cutter towards the work?
Adding rake to a screwcutting tool which has been ground to the correct flank angles means that it is no longer cutting those exact angles. This gets to be more of an issue if the pitch diameter is small in relation to the depth of thread (which tends to be the case for acme machine feedscrews).
Also the problem is more pronounced as the rake angle increases -- 5 degrees probably would not matter, at least for a normally proportioned fastener thread.
You probably already knew all this but I'm noting it for others who might read this.
Another great video as always! Thank you for walking us through the side projects and lessons learned, you amplify your learning every time we get to see your progress!
My pleasure! Thanks for being here
6 side projects and no failed pieces..you are in your groove at the moment. These lathe videos have had your excitement bleeding through in their editing.
It's a Christmas miracle haha Thanks!
i really like you style, runny , serious but honest
Another great video. After the last few videos with few (or no?) side projects, this one more than makes up for it. Love that you're documenting fixing up this lathe, looks super fun. Can't wait to see it return to its former glory.
Thanks! Yeah they have been a little lacking lately haha
These videos always make me feel better. Thank you for making them, they always help on my f̶r̶e̶q̶u̶e̶n̶t̶ bad days. Especially when dysphoria and depression are hitting hard.
Amazing job. Not for the faint of heart. This is going to be one interesting series with you going through this lathe!
Merry Christmas!
Thanks, John! Merry Christmas!
Your ability to stay motivated through side projects instead of getting frustrated by them is really impressive - congrats on ending 2023 with less backlash :)
In the end it's all in the making of a good story so I never get to down about it 😁 Thanks, Joe!
The font you use for title cards being so close to the Battlestar Galactica font from remake series throws me every time, always have the "I really need to rewatch this series" mind train haha
Hey Brandon, this one was a doozy! Lots of side projects which I actually love 'coz nothing beats making a tool to solve a snag in a project. I consider this as your christmas gift to us, your followers.
Excited about what 2024 has in store for us.
Many thanks, merry Christmas and a happy new year!
Watching this with an increasingly beguiling mix of fascination/foreboding/dread/determination. I recently inherited an elderly (1936!) yet elegant old lathe. It has troubling backlash on the cross slide and compound. I'm not sure I'm the man to fix it but watching on in case I persuade myself that it can be brought back to life.
You can do it man. Even if you mess up, you can always try again!
I suffer from "Nomillitus". It is a disease of hobby machinists.
My father was a machinist for 47 years.
A couple of years before he passed away; I bought a lathe and he started teaching me how to use it.
Now I have the disease. I want to make more stuff. No milling machine though.
When my father needed something then he made it.
You are lucky to get those hand-me-downs.
I can honestly say I don't look forward to a new video on TH-cam anywhere near as much as your channel. The content and format of what you produce is perfect.
That is very kind of you to say! Thank you!
Thank you for excellent content this year and happy festive season 😊
Absolutely me pleasure! Same to you!
13:35 You will probably never see this but Im going to throw it out there anyway. There are really only two options that are most likely here.
First, the thread is a 9/16-10 acme. 9/16 is close enough to 14mm that you could just be measuring a worn outer diameter to get this size. I find this the unlikely option, however.
The more likely scenario is this being a metric trapazoidal thread, TR14x2.5 specifically. The metric version of acme threads are called trapazoidal threads. The main difference between trapazoidal threads and acme threads, aside from the metric vs inch dimensions, is that acme threads are 29 degrees as you stated and trapazoidal threads are 30 degrees.
With the smaller thread at the end being a metric thread, my money is on this thread being TR14x2.5. It is highly unlikely that one part would have two different units of measurement used on it. The 2.5mm pitch is just close enough to 10 tpi (10 tpi = .100” pitch and 2.5mm = .0984” pitch) that you probably wouldnt be able to see the difference without a long enough gauge.
All that said, the problem I see that could arrise from this is the fact that if it is a trapazoidal thread, your compound dial graduations will now not be accurate do to them being calibrated (probably) to the 2.5mm pitch thread.
You can confirm this rather simply by setting up an indicator and checking the dialed movement vs the actual distance traveled of the compound. If you move the compound .100” and the indicator moves .100”, all is good. If you move .100” and the indicator moves roughly .0984”, well then you have a conundrum.
It would bother me. Not sure if it would bother you. I guess it all depends on how accurate you expect your compound to be. The issue is compounding error, meaning the longer the distance traveled by your compound, the more inaccurate it is going to be.
Edit: Dont just willy nilly trust what I am saying here, Ive given you enough info that it should be easy enough to do research to prove or disprove this. Im going strictly off memory/experience and my own math.
I love his videos!! He is the only Machining TH-camr, who explains EVERYTHING! I just bought my first BenchTop lathe, and I’m gonna be able to fix SEVERAL small issues with it cause of my understanding from watching his videos. All while making tasteful nut and member jokes. The man’s a Jewel. Keep it coming, and thanks
Thanks for taking us along good sir. I'm really enjoying the restore on this lathe.
My pleasure! Thanks for being here
I can’t express in words how much I enjoy your videos as a machinist myself. I also have followed TOT for a while and really appreciate you guys approach to things. Thanks for the videos and keep up the amazing work!
6 side projects and no box of shame? You're improving!
That’s gonna be a fine piece of equipment when you’re done. A Hardinge like lathe is on my bucket list.
I sure hope i can do it justice. It's a pretty unique machine!