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Old 11-08-2010, 01:57 PM
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alistairsam
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Join Date: Nov 2009
Location: Box Hill North, Vic
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Quote:
Originally Posted by bojan View Post
If I may jump in :-)
The encoders actually have up-gear .. meaning instead of slowing down, they are actually speeded up.
This way, you can get numbers Steve was mentioning in his post.

In my own version of Bartel's, I use 120mm diameter wheel, on which 6mm dia roller is riding, coupled with 48 slot encoder plate (from serial mechanical mouse).
This is ~20x up-gearing.
This way I am getting ~7500 ticks per axle rotation.
cool. now it makes sense. but I guess the only drawback if any would be that you can't use the index pulse to reset the counter at 360 of the encoder wheel.

how do the us digital encoders work as I believe they have an index pulse, in that case, the encoder resolution would be based on one revolution of the encoder strip?
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