Search found 2 matches

by firefrog
Thu Jul 26, 2018 3:01 am
Forum: Geeetech I3 Pro W
Topic: Extruder won't work, it's neither Driver nor Motor
Replies: 3
Views: 4347

Re: Extruder won't work, it's neither Driver nor Motor

Hi Kaktus, Thanks for your reply. The problem with probing with the multimeter would be that I have no idea about what I can probe and what I can't, because I would fry the board when I did. Buuuuuut: I got the problem solved otherwise, way easier, as there's one thing nobody tells you: the extruder...
by firefrog
Wed Jul 25, 2018 5:13 am
Forum: Geeetech I3 Pro W
Topic: Extruder won't work, it's neither Driver nor Motor
Replies: 3
Views: 4347

Extruder won't work, it's neither Driver nor Motor

Hi there, I built a Pro W (GT2560 mainboard and A4988 stepper drivers) during the last weekend, and when finished, got it to print initially. There is a problem with one of the drivers, though, as its Vref jumps from 0 to 0,2 V, then is adjustable from about 0,2 to 0,26 V, and after that it jumps wi...