Re: [CAD_CAM_EDM_DRO] How to build a DRO?

----- Original Message -----
From: <JanRwl@...>
>
> > I was hoping to build a digital readout for my milling machine. The
> > Idea was to use a rotaty enoder with a stainless steel wire and an
> > rotary spring to convert linear motion into rotary motion
>

> Dave: A yardstick and chalk would be equally suitable. Don't even try
this
> method!

Well gee wiz, Troll! It ain't that bad! Art Eckstein has a pulley driven
rotary encoder system that works rather well. The trick is to have the wire
recirculating instead of wrapping up around the pulley. I'm told that
stainless feeler gage strip can also be used in place of the wire. Try the
following:

http://ns1.dicomm.net/~axtein/dro/

Doug