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Motors stutter, no movement
Hi guys,
So I’ve finally managed to put together pretty much everything hardware-wise and wired up all the motors and stepsticks! (I’m using the RepRapWorld.com Ramps 1.4 DIY kit with 5 Stepsticks)The connection is established, I can connect to the printer with Pronterface (Im using Sprinter firmware). The problem is that I can’t move any of the motors … When I try to move XYZ or E the motors don’t turn, but somehow they try to move in both directions at once, kickind and stuttering (no matter what the speed is set to).
I’ve searched all over the web for the past 2 days, I think I tried pretty much everything I could imagine:
- Adjusting the potentiometers of the stepsticks, tried all positions, no differnce whatsoever
- I thought that the wires are wired up the wrong way, because it sounded like the coils were fighting each other (I have these motors: [www.aliexpress.com]) so wiring should be as follows:
Blue:B- // Red: A+ // Green:A- // Yellow:B+ (I’ve also tried Blue/Green/Red/Yellow)
either way, same result; motors just stutter and don’t move
- The endstops are connected, tried reversing them (false/true) and canceling them out in the firmware, nothingThe funny thing is that sometimes, the motors started turning (quite fast), but the movement seemed random, can’t recreate it if I wanted to
Oh and one of my stepsticks seems to be broken, I didn’t fiddle with them at all, just didn’t get any signal from the motor connected to that stepstick, what could be wrong there?
I’m using an ATX Powersupply, with a 12V 15A output, I simply cut off the 4-pin connector (the 2 yellow and the 2 black wires) and screwed it into the screw terminals, also connected a fan to D10 because the Stepsticks were running quite hot during testing (although the have heatsinks) – not sure whether i connected the Power supply right, but since I can get the motors to at least react, I’m guessing yes.
I’m at a loss, tried everything i could find! Any suggestions?
regards
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