With Instructables you can share what you make with the world, and tap into an ever-growing community of creative experts.
Tell us about yourself!
Hi,if your motor changes direction randomly (in case we are talking about 28BYJ48 and not a NEMA17 type) the most possible issue is wrong connection. Don't rely on the wire colour. Different manufacturers - different wire color order. For me this issue was a little hell as well :) Double check this even on the motor's PCB. Vibration of extruder motor is of course much bigger than other small motors. Setting around 145 steps/mm should be OK. Driver trimmer pot has to be set at higher level than other motors (based on the fact that NEMA17 literally 'consumes more' than 28BYJ48 :) ) How much torque does your extruder motor have anyway? Send us a data about manufacturer and model of your motor if you don't know...FireCrier out.
Join 2 million + to receive instant DIY inspiration in your inbox.
© 2016 Autodesk, Inc.