Re: Great deal on rotary encoders

Dan,
I was playing with them last night with the program set to 20,000 for a 5TPI
lead screw (The McMaster Carr ball screws I am using). Rotating the encoder
shaft as fast as I could through 5 revolutions seemed to consistently yield
a reading of 1". I will have to try booting the program setting to 40,000
and see if it blows up.

Tim
[Denver, CO]

----- Original Message -----
From: Dan Mauch <dmauch@...>
To: <CAD_CAM_EDM_DRO@onelist.com>
Sent: Wednesday, July 14, 1999 7:58 AM
Subject: Re: [CAD_CAM_EDM_DRO] Great deal on rotary encoders


> From: "Dan Mauch" <dmauch@...>
>
> I think you will run into a problem with a 1000 count 4000 quadrature
> encoder with a 10 TPI leadscrew. That would work out to 40000 counts per
> inch. Tom has set the program so the maimum count is about 38000 per inch.
A
> friend in Australia discovered it. Tom says he'll fix that. In any case
> those encoder heads should work with the linear strips or and encoder with
> less than 800 counts per rev assuming that you are using a 5-10 TPI
> leadscrew.
> Dan