On Fri, 15 Dec 2023 at 23:16, Peter Wallace <p...@mesanet.com> wrote:

> With maximum sharing you could get away with only 5 inputs
> (4 home switches and a combined limit input)

Well, with maximum maximum sharing you can get away with a single
input for all limits and homes. But it's asking for trouble if you get
stuck on one.
Separate positive and negative limits is nice to have, as it allows
you to jog off the limits. That said, if you have good homing you
should never end up on the limits unless something goes wrong.

-- 
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, 1912


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