Hello Guest it is March 28, 2024, 08:21:21 PM

Author Topic: Tool Zeroing  (Read 2814 times)

0 Members and 1 Guest are viewing this topic.

Offline NormB

*
  •  169 169
  • Norm
    • View Profile
Tool Zeroing
« on: November 28, 2011, 10:16:24 AM »
I have looked at several posts for tool zero macros etc. tried several but with no success.  I obviously do not unerstand how htis works.  One I was really interested in was a simple copper plate of a known thicknedd two leads one to the controller and the other to the tool with a cli[ when the tool touched the copper it would auto register a prefixed dimension of the copper plate.  I tried many ways to make this work I needf help this would save me a lot of time if I can get it to work.

Offline Tweakie.CNC

*
  • *
  •  9,196 9,196
  • Super Kitty
    • View Profile
Re: Tool Zeroing
« Reply #1 on: November 28, 2011, 11:48:11 AM »
Hi NormB,

If you are lucky and the tool is already at GND potential then you only need the one lead, connected to the copper plate. This lead is connected to any spare input and configured within Mach as the Probe. There are numerous macro's for the auto tool zero button and you just choose which one best suits you.

If it is any help, the way I have implemented it is shown in the bottom half of this page. http://www.cooperman.talktalk.net/files/17.htm

Tweakie.
PEACE

Offline ger21

*
  • *
  •  6,295 6,295
    • View Profile
    • The CNC Woodworker
Re: Tool Zeroing
« Reply #2 on: November 28, 2011, 11:54:59 AM »
How do you have the plate wired? You may need a pullup resistor on the input.
Gerry

2010 Screenset
http://www.thecncwoodworker.com/2010.html

JointCAM Dovetail and Box Joint software
http://www.g-forcecnc.com/jointcam.html

Offline NormB

*
  •  169 169
  • Norm
    • View Profile
Re: Tool Zeroing
« Reply #3 on: November 28, 2011, 12:26:13 PM »
The plate works connected to the controller as normally open when the tool touches it reacts but the macro makes it go nuts.  I never know where the tool will end up.  it will rise but sometimes an inch and sometimes 1/2 inch etc.