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Message

Re: Drilling station steppers

2005-06-22 by derekhawkins

>Do you have a source for those shaft encoders that are $19.00 each?
>The cheapest I have found is from US Digital

Same place but they're limited to 300 CPR;

http://www.usdigital.com/products/e4p/

--- In Homebrew_PCBs@yahoogroups.com, "lcdpublishing" 
<lcdpublishing@y...> wrote:
> Do you have a source for those shaft encoders that are $19.00 each?
> 
> The cheapest I have found is from US Digital and they are around 
> $35.00 or so.
> 
> Thanks
> 
> Chris
> 
> 
> > A new shaft encoder can be had for $19.00 these days. Adding 
> > a "second shaft" to any surplus DC motor is a piece of cake if you 
> > have access to and know how to use a mini-lathe...Or buy a surplus 
> > motor with encoder. H-bridge ICs are around $5.00, microcontroller 
> > around $3.00...Here's what's missing....Good PID code for the 
> > micros....Right now it's under lock and key but will soon trickle 
> > into the public domain.

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