Topics

Emco 120CNC Homing

marty_in_mesa
 

How did the Emcoturn 120 CNC machines originally home?
Did the operator jog the axis to marks, and then home the machine? I assume the axis rotated until the hall effect sensors on the ballscrew pulleys tripped?

I have never seen or operated a stock machine.
Thanks
Marty

FREDERIC RIBLE
 

Never operated original machine, but I assume the same procedure: you jog to marks manually, then the homing sequence will rotate until the magnetic sensor detects the magnet on the pulley.

Found that in the instruction manual:

For startup, looks like the machine is saving last position before shut down and need only to slide to zero and then perform fine adjustment with the magnets (see picture below).

For my Machinekit retrofit (not yet finalized), I have implemented this two steps homing sequence, but fully automatic thanks to additional proximity sensors on each axis.

Frederic.
http://blog.f1oat.org/category/emco-turn-120p/


On 2018-08-31 19:38, marty_in_mesa wrote:
How did the Emcoturn 120 CNC machines originally home?
Did the operator jog the axis to marks, and then home the machine? I assume the axis rotated until the hall effect sensors on the ballscrew pulleys tripped?

I have never seen or operated a stock machine.
Thanks
Marty