@deky A quale vite ti riferisci?!
Se intendi sulla scheda dove si collegano tutti i cavi dei motori e del laser, servono per regolare la forza dei motori. Come ti ha scritto @Nottingham82 metti una foto della vite così riusciamo ad aiutarti!
it is a design flaw. They fixed it on the latest model. I keep mine unplugged until i am ready to actually move the laser around. The plug is right next to my pc so I reach up and plug it in then hit send.
So the nano is the little controller board that the USB plugs into. If you pull it off the board there is 3 pins and a little connector called a jumper. Move the jumper from the middle left to the middle and right pins. It should be marked .9 This will let you run the new firmware.
@Anatoly So Anatoly, the ash you are speaking about is not from the paper I was printing but from a cardholder I put a side of my desk to divide the printing area to my desk. About the pictures of the top of the laser I try to send you in attachment .
Now I opened my laser, I bought a new fan and I'm trying to fix the machine how I can. I'm looking some part, some other parts I printed with my 3d printer so ...I'm sure that something wrong happen to the laser unit.
Absolutely correct, it has the potential to blind someone very easily. I was aware of this problem through this forum and thanks to the advice given by the very clued up guys ( and Gals ) on here, I performed this easy to do mod and it now works as it ought to from the factory. Well done for hopefully making the manufacturers aware of this. Let's hope the new boards have this built in when they leave the factory. As always, everybody must take great care when using these very useful, but potentially dangerous machines.