Messages

1

General Mach Discussion / Re: laser power control

« on: January 24, 2022, 06:56:07 PM »

Hello again Tweakie,   The small circuit board that you mentioned is it available to buy somewhere or can you tell me exactly what those components are? if so I can try to find the parts and build myself.    Thanks

2

General Mach Discussion / Re: laser power control

« on: November 19, 2021, 08:24:01 PM »

Hi Tweakie,  here's where I'm at right now. I set up a new profile for laser and followed all of the settings you shared in one of your links.  The laser will run a program and work as it should meaning it will stop /start burn in the places that it should.  Zed is stationary thru out.  however with any M3 s### commands I give laser, power strength will not change even though DROs in the spindle window will change to my commands laser remains full power. I must be missing something simple somewhere. im attaching a wire diagram in hopes to shed some light.

3

General Mach Discussion / Re: laser power control

« on: November 05, 2021, 07:06:56 AM »

 I have a DB25 breakout board between stepper controller and and gecko stepper driver. I am using Pin 17 & 1

4

General Mach Discussion / laser power control

« on: November 04, 2021, 10:14:27 PM »

Hi Peeps, So I got my laser all programed in mach3 and it works great. However...the only thing I can't figure out is the power control to the Laser Head. I thought the spindle speed control would do this for me but no. My Post Processor is a Jtech  and the laser on command is M3 S12000 it turns the laser on full power. Any suggestions on how to control this to get less power?

5

General Mach Discussion / PWM laser control

« on: October 18, 2021, 04:17:31 PM »

So I purchased a small laser attachment from china, it has a plug with 3 wire attachment which is labeled PVV,GND,PWM. The power is 12 volts dc to terminals PVV and GND.  my break out board probably would use terminals 1 and 17 from what I read elsewhere. So my question is will I be able to tie the ground from the breakout board to the same ground of the laser power supply and attach BB terminal 17 to PWM? Thanks for any help!