"Lloyd E. Sponenburgh" lloydspinsidemindspring.com wrote:

Ignoramus13208 fired this volley in
:

Lloyd, this will work just fine. It is a known approach. If your DRO
is absolute, you can also avoid homing.


The scales are not absolute, but do have a built-in home index, so
switches (or choppers) would not be required except to provide an
over-limit panic
stop. The fact that the index is built into the scale would, I think,
further improve repeatablilty of homing. I've seen home switches go
"wonky" over time, and choppers can get dirty, and not repeat the same
home position twice in a row.
For any highly-repeatable system, you usually have a home switch to get
close, and then search for the index pulse from the encoder to refine it
down to a single encoder count. This is how it is done on my Bridgeport,
using EMC2.

Jon