MakerBot Print is our newest print-prepration software, which supports native CAD files and STL assemblies,
allows you to interact with all your printers via the Cloud, and many other exciting new features.

Download Now

Report as inappropriate

Hello Thorgal!

I've been building the toyREP for a while and today is the day I wanted to make it print. BUT, I've come to a problem. The stepper motors (I, of course, used the bipolar hack - cut the connection and desoldered the red wire) simply don't work. When I connect NEMA 17 to the Ramps, it works flawlessly, but other motors simply don't.
Z and Y - Turns okay most of the times, but in random direction. I tried various acceleration speeds (from 20 to 200) but nothing changed.
X used to "work" the same way, but now I unscrewed it to look inside, it seems like it's trying to do anything and I can feel it resonating, but the shaft doesn't turn.

I'm just wondering if you came across this problem too. If not, don't read more, but I'm gonna write something I realised, in case you know about this.

First things first: While building the ToyREP, I wanted to try the motors. They didn't work, so I was searching and searching till I found that I have to short all 3 wires under the motor driver to get it going and that's what helped me. The question is, should the pins be shorted?

When I connect a multimeter between two cables in the middle of the stepper motor (pink and orange), it starts beeping - I assume they are connected, but should they be? I tried different motor, new one. I carefully "hacked" it and it does the same, and I doubt all the motors I ordered are bad :D

Thank you very much,
Appreciate what you did for this community :)