I'm thinking of a 100 line encoder. Wouldn't require too much resolution.
Tested from the rhino cad program and output seems very acceptable.
But I assume for more then 200 line, it could be worse.

Geert

ben lipkowitz wrote:
> On Mon, 24 Dec 2007, Geert De Pecker wrote:
> 
>> To do threading on the lathe is the end goal. I'm still in the
>> development phase for the encoder bit. Want to make it myself
>> (see part of drawing at http://users.skynet.be/gedp/FILES/index.html).
> 
> Geert,
>    There are some .ps files floating around that can be used to print your 
> own optical encoders, and since postscript is a programming language they 
> are relatively easily modified to do weird stuff such as in
> http://fennetic.net/pub/irc/encoder-panelized.ps
> 
> however i find postscript can be hard to understand sometimes, so i 
> rewrote it in python:
> http://fennetic.net/pub/irc/draw_encoder.py
> 
> hope this proves useful to someone
>    -fenn
> 
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