Revision as of 22:55, 11 April 2019

Working Doc

Simple - just cut off Arduino power, but need to feed Arduino with power in a different way. If using external heat bed mosfet - no other change needed. Still need to power through heat bed part with 12V - but that power is minimal.

Steppers have less torque at higher speed
Power of a stepper is constant - if power is torque x velocity, then torque decreases with higher velocity
The mechanism for loss of torque is back EMF from inductance and back EMF from rotation
With high velocity, back EMF of inductance is significant as a fraction of motor power. At high enough speed, inductance overtakes and motor stalls. This is the region when higher voltage allows stepper motor to overcome the effect of inductance. So at Max speed - higher voltage produces more torque for anstepper motor.

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 ==Replace Automotive Fuse==
+See at minute 1:
 <html><iframe width="560" height="315" src="https://www.youtube.com/embed/8Nmmrp4hKeM" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe></html>
 ==Use Ferrules==
 <html><iframe width="560" height="315" src="https://www.youtube.com/embed/SkiltNfGo-I" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe></html>