Re: [CAD_CAM_EDM_DRO] Encoder Based Progarmmable Limit Switch

Roland,

what kind of resolution are you looking for? 4 bit 8,12?

a 4 bit absolute encoder wouldn't be hard to scratch build
but it starts to get cramped at higher counts
maybe use copper foil on a glass/plastic plate and etch it like a PCB

does it need to have continuous rotation or would a single turn
device work?
say a potentiometer + A/d converter or MCU with A/D
perhaps a geared down single or multi turn unit ,or remove the stops
from a single turn pot

Brian

On Friday 17 August 2001 06:36, you wrote:
> To the Group
>
> I would like to see if anyone on the group has some experience or a
> suggested source for info on a homebuilt rotary encoder based programmable
> limit switch -
>
> I have a project that would be greatly assisted if I could read encoder
> pulses and produce output signals based on different portions of the
> rotation of one revolution - There would be the possibility of multiple set
> points and outputs -
>
> Would like to talk to anyone who has some experience or would like to work
> on such a project with me - I know of commercial units but would really
> like to have a low-cost homebuilt version if possible - contact me either
> off or on the list -
>
> Roland