Old CNC Lathe Teardown: Part 1
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- Опубликовано: 26 июн 2024
- This is a video of me tearing my original mini CNC lathe down, both emotionally and literally. I've decided that I'm going to take a fresh swing at this project so that you can see the process and so I can have a better lathe at the end. This is the first of 2 or 3 teardown videos -- I just split it up because it was getting long. The CAD for this lathe is available on my Patreon.
Lathe cutting: • Micro Lathe Cutting A ...
Patreon: www.patreon.com/hlaps1990
Instagram: tabletop_machine_shop 
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Great machine, bravo!!!
I spent about 6 months making a custom 3D printer...and after using it for about just as long I just had to tear it down and rebuild it better. Man I didn't want to, but my new build will blow the old one out of the water. Can't wait to see what you do next man.
It sounds like we would get along. Its amazing how much you learn while making something and at a certain point is irresistible to start over. I even remember never finishing lego builds as a kid haha, Thanks for watching!
Good to see an update on this little guy. I'm excited to see the next version. Version two is almost always leaps ahead of version one in my experience. I look forward to more!
Movie sequels arent always better :P. Thanks for commenting! I'm glad you're following along!
@@TabletopMachineShop fortunately machines are very much not like Hollywood
Rest in pieces mini lathe. 😥
You know what they say -- when one project gets taken apart, a new one will rise from the ashes. I say that.
@@TabletopMachineShop and with that awkwardly worded non-saying, we dub the new lathe the Phoenix Micro CNC Lathe 😂
Bellows idea: you can embed cloth in a 3D print (you pause the print at the layer height where you want to put the cloth; attach the cloth to the bed over the print with some masking tape; and then resume the print) so how about printing a set of thin rectangles and embedding a thin sheet of cloth to act as the flexure? 🤔
I've literally always wanted to try 3D printing with inserts haha! This is actually a fairly elegant solution--It's 2D, so you can just stop it mid print and insert the cloth, That way, you don't have to do any crazy G-Code work. This sounds like fun to experiment with, thanks for the suggestion!
Greg
Hi editing Greg! I like yours and Alen-wrench Greg's work, keep it up.
Thanks!
hello Greg, nice to see your video after a long time. Always wondered what happened to the lathe project, good to see an update. Will email you the latest software copies tonight.
Sounds good! I hope I didn't sound like I was blaming you guys for my lathe calamity. I do recall at one point the software recommended saving old settings before updating and I gallantly ignored it. I'm still planning on using the Masso for the new lathe.
oh so you are not rebuilding this lathe? I thought you are just doing everything again now such as planning wiring etc. it will be sad to see this machine go, we loved this machine.
The new one will be better :)
@@TabletopMachineShop do you have plans for this lathe? Id like to build one similar to it with a 16c or 3j collets
Maybe turn some custom hex screwdrivers (The handle that is... everyones got enough allen keys to spare) with sizes engraved and paint filled? With a custom stand also clearly marked for sizes?
Maybe it's just me (I know it's not...) but a nice stand with a complete set of screwdrivers is sexy af! Death to bit sets!
I apologize in advance for enabling your "I should build one of those to save time and make life easier" mind, but i suffer from the same disorder and you know what they say:
A burden shared is a burden halved!
Ok, maybe it's multiplied in this case but still...
That's "new project" talk! Ya that would be really cool. The only issue is that just because a tool is nice doesn't mean I won't lose it :P. I like the idea of marking them with colour though. This may become a project.
Great video. I've just been studying linear rails and trying to figure them out for a project. I'm wondering about nesting them in a Square Bottomed valley, or possibly using dowels to hold them in places, as we often do that on fixtures we build for an customer.
Good work and looking forward to the next one!
Depending on how the base is made, a square bottomed pocket should work. When you say aligning with dowels do you mean through the bolt holes or butting the rail up against dowels?
After talking with out fixture makers, what they do is drill (with carbide) through the hardened rail in three places to locate and provide a ridgidizing holderydo element to the rails. These are usually 150-200mm long 15mm sized rails. They are also held down with the screws, but the dowels keep them from being able to shift out of place.
If my made up pseudo words don't tickle your fancy, think of them as aligning pins, we jig grind the holes on both the part and the rail to assure size and location.
I suppose I could also use precision shoulder screws and carbide ream or jig grind the holes on the rail to be a tight slip fit.
We actually had a similar issue with the stench of felt at my job. We figured out that it's completely machineable if you soak it in a liquid nitrogen dewar for a few minutes.. We actually turn it on a lathe with some fairly complex geometry and with surprising precision.
Hmm thats super interesting! I had heard about machining rubber at very low temperatures, but I never thought it would have worked for felt. Do you use any special tools (like super sharp tools?)
"Welcome back to just under my chin"
The amount of annoyance in that little phase made me laugh.
It was kind of nice not having the camera in my face for awhile, but eventually I needed to get in close :P
I got a mention! I'm famous! Look forward to following the rebuild/remaking of the lathe
I hope this buys me some time to get some new cutting footage!
Looking forward to it. I still want to make one of those turret's for my newest small CNC lathe. Unfortunately my encourage turret's are too large..
Oh really? I was literally just inquiring about IKO rails last week or the week before, no bueno? That's good to know! Thank you so much for that, you just saved me quite a bit of money because I was going to order them early next week. Want to more or less scale that up 3-5 times. I want a DC motor, and up to 10,000 rpm and too much torque...overkilllllll. Got any recommendations?
There's nothing inherently wrong with IKO rails, they're just a lot more expensive. Hmm as spindle motors go I think you'd be looking at a high voltage servo to get that kind of range. Maybe a luckly ebay find? Otherwise you could have a look at some of the multi horsepower clearpath motors or maybe something from DMM servo
Hey Greg
You do realize that this lathe was what started me making my own? I really have to thank you for doing so :)
Mine is not a CNC though... Right now I'm in the middle of building it... Have a look!
imgur.com/a/uHFyyRS
I went through numerous designs, started out with a slanted bed like yours is. Then I scrapped that idea and went with a more traditional design.
Mine is a little bigger than yours, 3 inches diameter over carriage, 10 inches between centers. 100mm chuck (optional an ER32-collet). 600w brushless motor from a steering assist assembly from a car, controlled by an odrive. Z-axis is powered by a JMC servo, X-axis by a closed loop stepper, also from JMC.
Controlled semi-automatical with two electronic handwheels, a lot of buttons and some Arduino-magic. There is a second spindle with a quill (ER25 collet) mounted on the carriage for off-centre axial milling/boring/grinding. This thing also swivels freely around an axis on the carriage, this allows for milling/drilling and so on from almost any angle relative to the main spindle.
I took a lot of inspiration from your design - thank you again!
That looks sick man, awesome work! I'm really looking forward to seeing it cut -- make sure you send updates! Great work!
@@TabletopMachineShop thanks man! Means a lot coming from you. Can't wait to see the new version of your lathe. Very curious!
Again, thank you very much. I wouldn't be here if it weren't because of your videos. Keep it up!
Oh. Bellows. Check Aliexpress. There's some vendors doing custom bellows for quite cheap!
Dude would I be able to get the models from you? I want to build one.
For the next one, would it be an idea to standardise on two or three hex sizes for all of your bolts?
Youre a genius!
You're the one complaining about always having the wrong wrenches for the bolts that you designed in yourself...
No I'm serious, that would probably save a lot of time -- Like only using M6 FHCS and BHCS but M5 SHCS so they all use a 4mm Allen key... I like that idea!
I guess I got a false positive on my sarcasm detector there, sorry about that. I am just now watching this guy: ruclips.net/video/gUFeoDf1YvM/видео.html, he used a granite surface plate as a precision base for a mill. Perhaps an import surface plate would make for a nicely rigid, well damped lathe bed.
i had a situation withthe runaway linear carrige, :D from the table top all the way down on the carpet, not a single ball fell out o.O
Did you go out and buy a lottery ticket?
@@TabletopMachineShop no 😐
You can remove the password by leaving it blank. You still have to hit enter but it saves typing something in for the setup menu.
Oh good to know, thanks!
No probs mate.. I believe you can remove one of the password prompts altogether but the setup one has to be there but can be blank. Cant wait to see the lathe come together. I will have to do a couple of vids on my stuff one day. Its nothing flash but you've inspired me.
I'd love to see a vid of what you're working on!
I am not much of a video guy, but its something I want to do. I've only just managed to figure out Instagram lol.
10:50 isnt one of the rails supposed to be a slave and the other a master, that is butted against an indexing raised rail?
I actually had a blurb about exactly that but I edited it out. Too much stammering. Either setup works (depending on how you machine the base). The two edges I butted the rails up against were cut in the same setup (and even finished at the same Z position as I recall) so I considered them trustworthy. That said you can butt one up against a hard edge and dial in the other with an indicator
Tool turret links???
ruclips.net/video/Yi-YXHsrbfA/видео.html here you go!
Regarding the "Note to self" at ruclips.net/video/CEBVwQH8aig/видео.html white balance is not a big issue, not as big as flat and balanced light. With wrong white balance the colours won't show right, but with wrong light you will get too high contrast differences and especially shiny metal, can look like direct sunshine. Also watch your focus... Otherwise I like your videos.
If you need anything designed or CNC milled, send me an email. I am rather proficient in Autodesk Inventor HSM 2019 and my mentor has been machining for like 35 years and is helping me with my planetary roller screw system 😈 plus I'm using slightly different BLDC's. I'll send you a care package in a few months.