Question about amperage on the K40 lasers
I just purchased one of the K40 lasers with the digital front panel.
It seems to be working well but I wanted to add a ammeter so I would know exactly what the current was not some almost meaningless percentage on the digital panel.
I added the mA meter and when I tested the laser, 15% was reading around 3mA and 99% was giving me just around 9.5mA.
I assumed the analog meter was bad since I have read many postings talking about 40W machines going up to 15-18mA
I hooked up my Fluke digital meter and got pretty much the same readings.
It doesn’t have any problems cutting 3mm acrylic when set at 30% (didn’t check the amperage) and I’ve used it for several hours engraving on various wood crafts.
Any thoughts on what may be going on?
Edit: I forgot to mention that I changed out the controller and replaced it with a Cohesion3D Mini