EBB slow motor rotation jerky.

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Hi.
When rotating the motors slowly the motion is jerky. For every major step 
(1.8° for the ebggbot  motors) it looks like an extra delay between the steps 
is introduced.
See my forum post 
http://forum.evilmadscientist.com/discussion/337/checking-ebb-motor-voltage-from
-inkscape#Item_17 for further explanation.

RGDS
Ragnar

Original issue reported on code.google.com by ragst...@gmail.com on 3 Apr 2014 at 3:46

[GoogleCodeExporter]

From the video, it looks to me like this is due to a combination of too-low 
input voltage, too-high current adjustment pot setting, or too-high motor coil 
resistance. The easiest one to change is the current adjustment pot. Try moving 
it lower in current (clockwise) while you run your test, and see if the jerky 
motion goes away. I'm using the stock EB motors, and the stock power supply, 
and my motors (with a properly adjusted current pot) are very smooth even at 
slow speeds, although I don't have the awesome stepper motor mechanical dial 
indicator you do. I'll need to make one of those.

Could you please try adjusting the current pot and report back if you can get 
the problem to go away?

Original comment by brian.schmalz on 26 Apr 2014 at 9:49

• Changed state: Accepted

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Original comment by brian.schmalz on 26 Apr 2014 at 11:19

• Added labels: EBB

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Closing due to lack of reports... please feel free to re-open on github issues 
if necessary.

Original comment by windell@oskay.net on 15 Dec 2014 at 10:31

• Changed state: WontFix