Hi,
I have few Q.
1. Is cutting 4mm poplar plywood AB/B quality at 45 speed and 68% power(21mA on ampmeter) with SPT 90W tube bad or good or....
2. I just saw there is strange bubble in tube see pic
3. Tube is SPT TR90 with integrated red dot pointer. Red dot is suddenly scattered all over the place. Befor it was small red dot along whole path from mirror 1 to out of tne nozzle. Now it is see pic but it still comes out of the nozzle like it is supposed to
Thanx