06-28-2015, 11:28 PM
I have a small CO2 (50W) chinese laser cutter and i cut 3mm MDF, but sometimes around every 15-20 days the cutter decrease their power and i can't cut, only engrave. After recalibrate, clean and wait some time, the cutter back to cut normally. I have replaced mirrors and potentiometer, but the same is ocurred time to time.
Few days ago, i noticed that amperemeter what have 0 to 30 mA range, gives their maximum power between 7 and 10mA, other values decreases capacity of cut. Theorically, a value of 30mA would burn MDF, but no laser is present, same as 0mA value.
Can anyone help me, please? Thank you.