9x20 Lathe CNC Conversion - initial testing part 2

This shows the 9x20 lathe cutting air while its reading g-code from emc2

Category:

Science & Technology

Tags:

• cnc
• lathe
• 9x20
• homebrew
• turning
• metalworking

[TheWorldGatekeeper]

and what is the stepper motor torque?

and the spindle motor is controlled with the pc

because he's sstop immediately

[dareposte]

The stepper motor torque is 220 in-oz, which is too small for the Z axis. Sometimes it misses steps under heavy loads. I purchased a 450 in-oz motor but have not put it on yet.

The spindle speed is controlled by a VFD, which receives an analog voltage from my control software. It starts and stops very quickly as you observed, because the VFD can generate the required waveforms to brake or accelerate the spindle.

[TheWorldGatekeeper]

is this lathe home made ?

[dareposte]

The lathe was purchased as a manual lathe from Harbor Freight Tools, an importer of low cost Chinese tools. I stripped it down and added ballscrews and stepper motors to make it function as a CNC lathe.

[AunShovah]

please dont turn the spindle with nothing in the chuck, you'll ruin the chuck.

Otherwise, very nice work

[ifocusfilms]

Any update videos yet ?

Parts list ?

[akareefkeeper]

What screws are you using?

[xlrationmarine]

I need that done to mine.