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- เผยแพร่เมื่อ 25 ส.ค. 2024
- Making thumbscrews for the rear cover of the mini lathe. Please like and subscribe if this was helpful! (MUCH) More information below!
Stuff from this video:
Automatic Center Punch: amzn.to/2ozq5cP
Tap and Die Set: amzn.to/2pBk6SB
Lathe: amzn.to/2nVBrEc
Stuff on the lathe:
Quick Change Tool Holder: amzn.to/2oZtFee
Tailstock Drill Chuck: amzn.to/2pmE0jX
Lathe tools:
Boring Bar: amzn.to/2pmy0b1
Carbide Tools: amzn.to/2oRZWax
Parting Tool: amzn.to/2nVCeW1
Center Bits: amzn.to/2oRRV5n
Drill Bits: amzn.to/2oz9W76
Other stuff:
Cutting oil: amzn.to/2ofkPaY
Mini Lathe troubleshooting guide: littlemachinesh...
Controller board wiring configuration: imgur.com/KIEzu92
The real version of the motor controller: amzn.to/2orw43F
Datasheet for the KBIC-120: www.galco.com/...
Music:
freemusicarchiv...
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At first I didn't understand why the drilling, then I saw the genius in you.
Great video dude. Really good idea in drilling and turning to make the grip of the thumb screw.
I enjoyed watching your thought process for laying out the screws. Fun lil project
Thanks! :)
Quality idea on making the thumb grip mate great little project thanks for sharing stay safe and healthy god bless
Quick fun project. Thanks Tim. I’m a beginner so this is good to get some OJT experience and brain juices flowing.
My best advice is to write everything down. Keep a machine journal for all your projects.
About the first or second time I did this I knew the size by sight and by feel.... years of experience makes those jobs easier...
I like the project. Good learning experience. I think I would use a couple longer cap screws, machine the aluminum handles, and press fit the cap screws into the aluminum handles. Could be a non-issue, but if you're removing the cover often, aluminum threads aren't that durable and are a bit prone to galling.
Either way, great work.
Yeah for sure, there are definitely better options... I just wanted something to make :)
Thanks for watching!
Nice idea to make thumbscrews ;)
Personally I would probably have made just the knobs and fitted them to threaded rod or if doing this way used a center as others have already said.
was thinking same, as long as he's ginger with those threads they'll last (forever) though
what you mentioned is called a "work holding" problem. 1. counter measure is to drill center holes in both ends. And then use the tail stock with a live centre to stabilize the end of the work. 2. If the thin middle part still bows under the cutting force then you would use the "follow rest" which is fixed to the carrige and supports the work directly behind and below the cutter. Probably a follow rest did not come with the small lathe. But you can make it your self. Search in youtube and you will find several DIY projects for that.
Often you can recognize the beginner from the advanced or pro machinists in their work holding. It is less obvious for the beginner but by making experiences as you just did you will become more aware of it and learn and catch up to the pros.
I am a German and the lack of accuracy in this lathe disgusts me. Such a nice video series and even if it's not really accurate, it's fun to see you working with it.
Haha thank you - sorry to offend your German precision
Wirklich jetzt? Sorry wollte dich nicht verletzten hab nur spaß machen wollen. Mich gleich Spinner zu nennen weil du meinen Joke nicht verstehst zeigt ja wer hier der Spinner ist...
@@Mentartice2 what the fuck is a spinner? weird germans
@@Mentartice2 ???????????????????????
2 words LIVE CENTER! or you can machine the knob first then insert thinner rod into knob.
Thanks! This was one of my first projects I ever did on a lathe - be sure to check out some of my later videos having since gotten a live center :)
same that i was going to write
Well done! Thanks for the video and please carry on.
Thanks for watching!
Nice video, thanks. Consider making a button to go in the hole and accept a tailstock centre for support while turning the thin sections. Possibly a travelling steady if the circumstances allow. Mike
Love these. Ill probably make a set for my mini. Check out Joe piezinsky on small diameter turning. Would not have helped you here but just for future ref.
Machine cuts so impressively when you speed it up like that...
mesmerizing dude
nice video ,enjoyed it very much.Tim
Nice but I 3D printed knurled knobs and epoxied them to the existing Allen head screws. Did the same to the change hear screws since some were different sizes.
it might have been easier to make a knurled head to fit on end of original cap screw, long enough to grasp.
Your frustration is palpable.
I have exactly the same QCTP as do you, but I fitted the top two components the other way round.
Yeah thanks! Someone else had pointed out that it was assembled backward too - It's since been switched around :)
have you ever seen how an r.c. car body is held on? post and cross pin...so quick and holds very well.... nice vid :)
That would have been a good idea too! Probably a much less interesting video/project though ha
Great project, FYI wd-40 works well on aluminum
Thats cool thanks for sharing
Thanks for watching!
Nice project.
Personally i'd leave the cover off if the gears need accessing that often.
Certainly that silly plastic floppy thing that goes over the chuck will be left off mine - easier to put a spring in the chuck key so you can't leave it in place.
What is that lube you're using ? Last i knew, methanol was the only thing that really works for aluminium with steel tools.
very cool! and smart way to do!
Thanks so much!
Just a tip that thread die is not a cutting die its a thread chaser! its not for making threads!!! Everyone is talking shit But your obviously learning so fuck em!! If the die is shaped for a wrench or socket its a thread chaser. A cutting die is a smooth circle ment only for a die wrench!!! just to help you out! keep it up bud!!
I fixed that problem years ago just leave off the cover :)
Until the gears break under pressure and blast your brains out
Damn that Allen key looked like hard work for you ha
I would suggest you use steel instead of aluminium because its to soft and easy to strip the threads! But a nice video on making the parts.
Live centers :)
Going by the title, I thought this was machining thumbscrews the torture implement
Nice video, but i have noticed that you have the tool post assembeled incorrectly. The centre tube is mounted upside down. That's why you have the handle soo far up from the tool post body.
Oh no! you're right - good thing I didn't do a video on how to install the tool post... thanks for watching and catching that!
Wouldn't turning it between centers been better for rigidity?
Absolutely - and I should have.
hi . i have a simaler lathe like this one and the first thing i did was metal gears to replace the plastic ones. you dont want it to brake down and not being able to make anything untill you buy a new peace.
Nice! This one is actually a direct drive and doesn't have a transmission in the headstock. At first I was bummed but then realized I don't have any plastic gears to worry about :)
TimNummy thats awsome.
TimNummy Or 3D print them which works great. Files are available on thingiverse.com
Wouldn't it have been easier to machine the grip portion as a nut, and then screw it onto a length of threaded rod? Add some green lock-tite and you won't worry about twisting those loose with finger pressure.
6:37 your video shows the part deflection clearly. Might you leave an extra 0.25" on the end of the part to contain a center drilled hole to hold with tail stock? Funny how nearly all fellow machining addicts spend so much time modifying/improving the very machine they're using to make the part. True story: I got addicted to machining in 1990 and stupidly bought a cheap chinese copy of a ShopTask. It was so bad that I'm still working to improve it in 2021.
Wow, I'm finally back on that side of youtube where people have below 1000 subscribers and the videos aren't an obvious product.
As for the thumb screws... I'd have tried machine screw cut-offs with partial threads first, maybe turned them down and press fit them into the knobs... or ground a flat and put in a locking pin for good measure.
Chris (Clickspring) used all-thread and tapped knobs with loctite.
Yeah I saw him do that! His work is incredible for sure.
This was mostly something to try since the lathe is still pretty new and the thumbscrews gave me a goal to accomplish rather than just turning round stock into chips :)
I appreciate you watching way over here on the three digit subscriber side of TH-cam!
would it not have been easier to make caps that you press fit to the original bolts
Probably, this was my first project though.
Hi can you please tell me where you purchased the thread sizer from.
3Dプリンター以外に自分で自分をアップグレードする機械があったとは。
Great part. Please stop pushing the chips clear with your fingers. How you haven’t cut yourself or got a very painful metal splinter I never know. Use an old paintbrush.
You could have cheated! Others have made knurled or machined "Caps" to go on the stock bolts. Press fit or setscrew.
If you have the need to do a similar project you could make use of the center support on dead center or a live center on the Tailstock. I have seen flex problems on 1" bar stock! I bought a ball bearing Steady Rest and a ball bearing Follow Rest. The little lathe needs the help!
Yeah, I was thinking about that for next time. I'm going to order a live center as I tried the dead center and I don't think the tailstock is square and true enough for it to be as effective as it could be.
I have an upcoming project that definitely needs to utilize some kind of support on the other end as it needs to be as consistent diameter as possible - so stay tuned, it will probably be a few videos before I get to it but it will be a really good test for a lot of things on this mini lathe!
While you are looking into your new project make sure all the ways on the Saddle and Compound are adjusted well. They wear and break in over time. Mine had gotten pretty loose before I noticed it. They are tricky to adjust and the Saddle plates are cast iron and can crack if you do it wrong. There are several videos here on You Tube on the subject. Studs and lock nut on the Saddle is in my future.
Yeah, almost every bolt was loose when I got it and a lot of places didn't have grease that should have... Before I do the up coming big projects I'm going to strip it down and make sure everything is correct again.
What you tried to do with the juck key is called "indexing". Usually this is done on a mill using either a spin indexer for common division numbers. Or on a dividing head which can do almost any division number. Check out this link and its follow ups. www_youtube_com/watch?v=SzhLg121aZk
But on some old lathes a spin indexer was built in in the shape of one or several hole circles on a pulley or gear wheel or chuck flange plate sitting on the main spindle. In your case check what the number of teeth on the timing pulley on the spindle. See if that number can be divided by 2, 3, 4, 6 etc. so you could use it for direct indexing. If not then check if you could drill a hole circle in the rear face of that timing pulley. Depending on the size desirable divisions would be 12 or 24 or 36 or 30 allowing multiples of 5. And to use the spindle as indexer you need to be able to lock the spindle. To do off-centre machining you would clamp a cordless hand drill on the cross slide either radially or axially to place your hole circle to be machined into your work.
Just love your video’s....makes me very jealous of your skills....and just love the knurling, makes a huge difference. Nothing like this in the UK, keep it up. Have you thought about doing anything air guns, silencers etc?
My dude, get a low torque driver and some Allen head bits, will save you all the faff xD
Never mind, posted too soon. Your solution was way, way better.
Maybe use the dead Centre to keep your work peace from wobbleing. Whenever doing long thin peace's
Thanks! I have since picked up a live center that helps tremendously for stuff like this
pleasure. thats good to hear. love the videos, keep up the good work. i also picked up in your newer videos that when you drill with big bore drill bits that they grab easy.(on the drill press) sometimes redusing the speed of the driĺl helps keep that from happening. hope it helps. have a great day.
There is no need for the thumb grip to be 100% concentric with everything else. You'd get a better finish had you machined that surface much closer to the chuck. THEN move it out and reduce the shank diameter.
Does is it possible to make threads on this mini lathe?
Yep, but I haven't needed to cut large enough threads yet. And don't have a boring bar small enough to do the small ones.
Order of operation
i would suggest you build a holder on the carriage so you can permanently use this Dial Gauge indicator (on the right/back side where space is aviable).it saves a lot of time, because you can measure while the lathe is running without the nee to turn it off and measure with the digital caliper if you diameter is on spot.
www.amazon.com/0-40-0-0-01mm-Dovetail-Indicator-Precision/dp/B01MTN7ARZ
Does this lathe have a through hole chuck!?
Sure does! It's not too big but it does.
Love your videos! My next lathe is probably going to be this lathe... especially since you did all the hard work! How big is the hole? Looking for a mini lathe that I could do 16 barrels and other stuff.
Thank you very much! It's just over 3/4" i.imgur.com/zZ3HOHf.jpg
IDK if you have seen the Harbor Freight Lathe 8x12... if you have what do you think of it vs the one you have?
It's probably about the same. This one that I'm using is a 7x14 and I think on these small lathes, I'd much rather have the length over the diameter.
Until u finish customizing it, it will probably die out on u. ;)
make metal gears when you get mill machine.
That's quite the step up from thumb screws haha. Also other than the feed screw, this lathe doesn't have any other plastic gears.
you probably know there is a community for a mini lathe and you can buy a set of metal gears. But ye i think natural next step is milling machine.
You can buy a combo - table drill/milling machine but these are crap.
Problem is you can't buy mini milling machine, well you can but it won't mill a metal.
Watch my DIY 360° Bluetooth Speaker: th-cam.com/video/cj6iUzV__jg/w-d-xo.html
I appreciate that your video is well done and it's a pretty cool idea in general but is there a reason why it's relevant to this video and not just spam?
Haha Sorry I´m new on youtube and wanted to make advertising for my channel because I have already started making videos and don't have a lot of views. Just trying to create a channel with regularly videos about 3D-Printing. But I'm watching your videos too
I'm going to give you the benefit of the doubt this time... just know that there's a fine line between posting a relevant comment with a related video that could provide value to either me or the other watchers/subscribers and just spamming the comments of videos that have more views than yours to try to drive traffic to your channel. The former is appreciated, the latter is very much unappreciated. In fact, I even provided a video (which I'm surprised you haven't seen if you watch my videos) for others to promote themselves via my channel here: th-cam.com/video/iAX5Jod-ocM/w-d-xo.html which I would encourage you to post your channel on (one time, not by spamming it). Also, these are the kind of comments that I delete very quickly.... should I see you abusing the comment section again, I'll just delete the comment and report you. Thanks!
haha thanks a lot
hokka huko huko huko
Sorry but your method is terribly inefficient. If you do that on a normal lathe with some 4140 steel... you destroy your carbide inserts, the workpiece and harm yourself with a flying pin. You need to have more rigidity on your setups.
Agreed. These were literally the first thing I made that wasn't just a smaller piece of round stock :)
TimNummy Man! you are polite. you really know how to take criticism. thank you for not being offended. So, here's an advice for the future: if the workpiece chatters or vibrates, you will snap your carbide inserts. I broke lots and lots, even the expensive insert holders, so never let your workpiece vibrate and you'll be fine. also, keep the stick out short to combat vibration, even if you have to do it in several sections. and be extremely careful when cutting off the workpiece, it can be thrown directly to your face. I wish you the best. cheers
Thanks! for both the kind words and the advice.. I definitely do some things that could cause bigger problems on harder materials. I really appreciate it.
@@effyou128 I can tell by the way you talk, you have never been outside the US. AM I RIGHT??