@Zax One step at a time .. Tired of trying connections, I have connected the controller board directly to the 5500 mw laser control board using the 3-pin cable that connected the 2500 mw laser control board. Result: by powering the two control boards, ONLY the upper fan turns ON on the laser . When I press the power on button on the controller board, the laser also turns on. So we took a step forward!
Now two problems remain:
- I don't know how to adjust the laser power to “weak”, for focusing: by pressing the ON / PWM button on the 5500 mw laser control board there is no variation
- I have not yet connected the computer: I will have to check if, via software, I can control the switching on and / or off of the laser
But maybe another topic will be needed, after checking if others have encountered the same problem.
But, obviously, if you can suggest something ...
See you on the next episode ...