Touchprobe for a CNC setup

Controllers Smoothie
1

Hi all,

'Spent quite a long time hunting for info on how to setup touchprobe for a CNC setup.
Should work with G30: moving the bit toward the object to carve…

Sound much simpler than all levelling strategies !… but can’t find any reference.

I’m using 3 endstops already (X min, Y min and Z max)…

  • where should I hook Z touch (and how to I get to monitor state ?)… using switch table ??
  • can use a stripped out mechanical switch (closing when bit enter in contact with target surface) or will it fry my board ?

best,

e

Imported from wikidot

2

the anwser was so simple :

  1. pick a pin available (my 1.25 was free on my CNC)
  2. 2 wires:
  • one from “GRD” to the spindle (turned off, don’t be a pain)
  • the other from “SIGNAL” to a metal plate (or the part to machine if made of conductive metal)
  1. edit config to enable Z-Probe and assign proper pin
    …
    G30: tadaaaaa. there you have it ! auto sensing*
    and then all the pleasure of G30.2 G30.3… scanning touch probing in X or Y your stock: awsome.

'should be in the wiki in CNC mill section.

e

  • providing you correctly initiated, homed, set zero, etc., etc….