On 9 August 2017 at 18:40, Kirk Wallace <kwall...@wallacecompany.com> wrote:

> For an absolute position sensor, I'm thinking that a section of tape from a
> tape measure glued to the slide would work well in conjunction with a screw
> dial or pointer.

Maybe something like I found on eBay.
http://www.ebay.co.uk/itm/Renshaw-Reader-Head-/332301624409

I don't have the tape, but that's the cheap part.
I have noticed that "Renshaw" parts are much cheaper than the
equivalent "Renishaw" on eBay :-)

-- 
atp
"A motorcycle is a bicycle with a pandemonium attachment and is
designed for the especial use of mechanical geniuses, daredevils and
lunatics."
— George Fitch, Atlanta Constitution Newspaper, 1916

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