Pimping the mini-lathe

More
06 Dec 2020 22:31 #191274 by RotarySMP
Replied by RotarySMP on topic Pimping the mini-lathe
I am using a very old version of FeatureCam, and you can either tell it a fixed number of passes, or "calculated". I choose 10 passes, but could also hear each pass loading up more. The LinuxCNC G76 might have been a better choice as I think it has a constant load option, where the cuts get progressively lower depth increment.
The stock holding was too shallow in that collet.
Mark

Please Log in or Create an account to join the conversation.

More
07 Dec 2020 07:45 #191294 by machinedude
Replied by machinedude on topic Pimping the mini-lathe
i think with these small lathes the amount of part stick out is harder to gauge. what would be very little stick out on a much bigger machine seems to be quite a bit on these little lathes.

sounds like linux canned cycles would be a better choice for threading tool paths. on the first few passes only the tip of the tool is cutting but as you get deeper into the cut you end up with both sides of the threading tool acting like a wedge. i would probably say a spring pass on the final pass might not be a bad idea as well. What ends up happening is you have part deflection and the part pushes away from the tool out on the end of the part while the section closest to the chuck is more stable.

if you would get lucky and not have a part climb over the tool and you were to measure the threads you would probably see some difference in your measured sizes from the front of the thread to the back section. or if your using just a test nut you will notice tight and loose spots down the threads.

just some tips to think about for next time.
The following user(s) said Thank You: RotarySMP

Please Log in or Create an account to join the conversation.

More
07 Dec 2020 07:53 #191295 by RotarySMP
Replied by RotarySMP on topic Pimping the mini-lathe
I think that Fanux6M post I used does 30° infeed, so it should only cut on one flank, but I'll try clamping stock more securely, only the thread as stick out, and the G76 and report back.

Please Log in or Create an account to join the conversation.

More
07 Dec 2020 09:36 #191297 by rodw
Replied by rodw on topic Pimping the mini-lathe
Ooops, looks like I never hit send on the post this morning.
I think you could connect your spare C button to halui.mode.teleop
so at the flick of a switch you would be able to jog regardless of the screen you are on..
You can the say the C = cunning feature

Please Log in or Create an account to join the conversation.

More
07 Dec 2020 13:09 #191304 by RotarySMP
Replied by RotarySMP on topic Pimping the mini-lathe
Could also by C = crap decision to engrave what I dont inderstand :)

Please Log in or Create an account to join the conversation.

More
10 Dec 2020 02:32 #191547 by my1987toyota
Replied by my1987toyota on topic Pimping the mini-lathe

Could also by C = crap decision to engrave what I dont inderstand :)


try not to let it get you down . I have crashed my G0619 mill many a times because of what I thought I knew.
Or maybe it was because I was using Mach3. LOL

To err is human but to really foul things up you need a computer.
The following user(s) said Thank You: RotarySMP

Please Log in or Create an account to join the conversation.

More
13 Dec 2020 12:34 #191853 by RotarySMP
Replied by RotarySMP on topic Pimping the mini-lathe
I couldn't leave it as

Humanity 0: Robots 1




Enjoy.
Mark
The following user(s) said Thank You: tommylight, my1987toyota

Please Log in or Create an account to join the conversation.

More
13 Dec 2020 14:18 #191862 by my1987toyota
Replied by my1987toyota on topic Pimping the mini-lathe
Great win on the rematch. can't wait to see what you tackle with it next.

Please Log in or Create an account to join the conversation.

More
13 Dec 2020 14:30 #191864 by RotarySMP
Replied by RotarySMP on topic Pimping the mini-lathe
I noticed that the bed is getting a little scored already, so I really need to add way wipers. But I think I might do a couple of non-lathe projects for the next couple of weeks.

Please Log in or Create an account to join the conversation.

More
17 Dec 2020 06:01 #192227 by arvidb
Replied by arvidb on topic Pimping the mini-lathe

This weeks video is....well, see for yourself

Lol, at least you got an entertaining video out of it! :D The hide-under-a-laptop image was spot on, I could feel your pain!

Looking at the video frame-by-frame the problem seems to be that your ER collet chuck is made of rubber. :) I can see you came to the same conclusion in the follow-up video.

(For anyone who doesn't know: you can step youtube videos frame-by-frame by pausing and using the comma and dot keys, for backwards and forwards respectively. Same with mpv.)
The following user(s) said Thank You: tommylight

Please Log in or Create an account to join the conversation.

Moderators: piasdom
Time to create page: 0.131 seconds
Powered by Kunena Forum