Difference between revisions of "Two Axis Stepper Controller"

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= What =
 
= What =
  
For some time I have wanted to aim a laser with good precision across a room.  Long time ago I did this with servo motors,  Worked fine excpt for the good precision.  I thought that steppers might do better.  The problem is that steppers move ( typically ) over a degree per step.  Gearing the motor down decreases the speed, but improves the precision.  These can be cheap ( '''[https://www.amazon.com/gp/product/B015RQ97W8 Amazon.com : Longruner 5x Geared Stepper Motor 28byj 48 Uln2003 5v Stepper Motor Uln2003 Driver Board for arduino LK67 : Camera & Photo ]''' )
+
For some time I have wanted to aim a laser with good precision across a room.  Long time ago I did this with servo motors,  Worked fine excpt for the good precision.  I thought that steppers might do better.  The problem is that steppers move ( typically ) over a degree per step.  Gearing the motor down decreases the speed, but improves the precision.  These can be cheap ( '''[https://www.amazon.com/gp/product/B015RQ97W8 Amazon.com : Longruner 5x Geared Stepper Motor 28byj 48 Uln2003 5v Stepper Motor Uln2003 Driver Board for arduino LK67 : Camera & Photo ]''' ) With these in hand and a 3D printed mount (  *'''[https://www.thingiverse.com/thing:794786 Bare Bones 28BYJ-48 Gimbal. by mmontee - Thingiverse ]''' ) for them I went forward with the software.
  
 
= How =  
 
= How =  

Revision as of 09:43, 14 November 2017

What

For some time I have wanted to aim a laser with good precision across a room. Long time ago I did this with servo motors, Worked fine excpt for the good precision. I thought that steppers might do better. The problem is that steppers move ( typically ) over a degree per step. Gearing the motor down decreases the speed, but improves the precision. These can be cheap ( Amazon.com : Longruner 5x Geared Stepper Motor 28byj 48 Uln2003 5v Stepper Motor Uln2003 Driver Board for arduino LK67 : Camera & Photo ) With these in hand and a 3D printed mount ( *Bare Bones 28BYJ-48 Gimbal. by mmontee - Thingiverse ) for them I went forward with the software.

How

Laser/Motor Mount

Arduino and Driver

Arduino Software