Thanks for your quick reply.. ye my error one of the 32 is a 16 oops..
I'm using marlin firmware on a mega2560 pursa i3 from eBay. Had to update the firmware when I bought it because extruder wasn't working.. I thought these drv8825 drivers where just plug and play but they don't work properly on any axis... and they make a high pitched noise when I try to move the motor.
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gr5 2,295
Need more info. Is this a UMO? Does your printer have Marlin? 1/32 = 1/32 so I think you have a typo on one of those "32"s in your post.
Know this: if you increase current too much you can blow out the driver in about 1/4 of a second. Having too much current looks similar to having too little current (the stepper has very little power, may step the wrong way or shake back and forth).
If everything is fine but one axis is moving exactly half as far as you command (ask it to move 100mm and if it moves 50mm...), then this is very easy to fix in the firmware. You would want to double your steps/mm. If you have a UMO you can edit this probably most easily here:
FOR UMO these builders are great:
https://bultimaker.bulles.eu/
http://marlinbuilder.robotfuzz.com/
I also recommend you get pronterface which allows you to explore things like steps/mm and I think you can change the steps/mm without building a new Marlin. Pronterface runs on windows only I think and you can get it here:
http://koti.kapsi.fi/~kliment/printrun/
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