Engraving stop after a few minutes

[MatthewOl]

1. I've changed my laser tube and all is OK, it's more powerfull but I'm certainly going to buy a 1000 mmm laser tube .
But I have a problem(that was already here before changing the tube), I tried to engrave a check patterns on a glass and after a few minutes 3 or 4 I think, the engraver stop.
The engraver is connected to the ground , so is it the motherboard ?
Do I need to change it ?
Is it possible to change for a different motherboard( not a DSP, it's too expensive for now) ?
Wich one and wich software if it's possible !

[RobertSt]

it's the same when i'm cutting !

[Triumphlaser Support]

Is there messages showing on the panel when it's stop ? like no enough space ?