CNC Lathe

Homemade CNC

Category:

Howto & Style

Tags:

• CNC
• Lathe
• DIY

[frits2345]

Nice video

Good job with that boring-bar.

[payala]

Thanks, it's funny how everybody has noticed that I was using a boring bar. In a home workshop, sometimes, tools have to be used for tasks other than the ones they were designed for....

This video actually doesn't do much justice to the whole system. Depth of cut is very shallow, since I was doing some tests... I should post a video with the machine doing some tough turning.

Thank you!

[jeff100xr]

its called a nc lathe.its before the cnc came along thats why its slower.yea its ood they are using a boring bar for it.

[payala]

You can call it whatever you want, it simply is a manual lathe with servo motors attached, and servo controllers powering the motors and receiving commands from a computer. If I had to, I would classify it as a home cnc lathe(it really is Numerically Controlled from a Computer).

The boring bar is just there becuse my normal turning inserts were unusable at the moment, and I wanted to make a test as soon as possible ( I was really excited to see it working, since I made it all miself).

[payala]

The speed is so slow and depth of cut is so shallow because it was my first test, and I didn´t want to push the limits. but i have achieved perhaps 2x-3x more speed and 5x bigger depth of cut.

[rarelasse]

the missing ballscrew isn´t that much of a problem if you make the program cut the same way all the time, this eliminates the backlash and the parts you turn will look as nice as parts from a "real" cnc lathe.

About the name i think it´s called a nc lathe, or at least we call it so here in Denmark.

[payala]

Of course, when you turn in a manual lathe that's the technique you have to use to compensate backlash. However, i have found that it is not easy to make the CAM program automatically generate toolpaths that make the tool advance always in the same direction (most important for X axis).

[terrygraham1967]

Hell I dont know why you all are so concerned about turning the OD with a boring bar I have used one as a substitute for a fly cutter in a pinch while milling on the lathe lol

[patricksheehan08]

I agree, a cutting tool is a cutting tool, a good machinist makes it work

[cocksparrows]

get a cut on man. you will be there all day

[PooPusher007]

you should have the tip closer to the tool post & get a center up the workpiece

[adisharr]

I found this video to be rather boring OMGLOLOLololol!!!1111

[1lumek]

A boring bar can be used as an outside and inside tool. With an 80 degree rombic plate its possible to work inside and planar. And with reverse spindel rotation its possible to turn outside as well, as long as the bar allowes. But it needs enought X- travel of course.

You just program the X axis with a - sign.

Good work.

[darkcover09]

Job shop owners and machine tool operators will be talking about this new CNC from Siemens.

The CNC EyeTeam has just broken the story. Ive copied their news video on my YouTube page.

[trkica]

smesno...

[ydna2]

The effective differences between a boring bar and a regular OD turning insert are....uhh, nothing.