Laser moving but not firing

Hello all!

I’m having issues with my K40 firing when starting a project. Laser does mark when pulsed. Laser also moves when project is started.

Details
OMTech K40
Upgraded to C3D board
Laser setting was turned on in Light Burn
Does mark when when pulsed
Tested multiple USB cables
Tested both Mac and Windows OS
Moves when project starts but does not mark

Thank you all in advance!

You’ll probably find that the cd3 board isn’t configured correctly…


The lps has a couple of control signals.

  1. P input is water protect and needs to be held low
  2. The IN input is your pwm or analog voltage pwm (power) control
  3. There is L which is laser enable

I can’t see how your lps is labeled but if it’s wired ok then that just leaves the configuration of the cd3 board.

Here is some good information on how the lps connects … Might give it a browse…

I thought @berainlb has dealt with these boards, maybe we can raise him for some input…

Good luck

:smile_cat:

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