AutoTool Zero code for MACH3

[steveb946]

Gang, Here is useful code which I have tested to do the auto tool touch off:

[url=http://www.cooperman.talktalk.net/index.htm]
Click on the tool setting button, then scroll down to the Tool setting Z description and button code for MACH3.

All you need with this is a touch probe with a known height, with the connection fed into pin 15 on the NM-145 Breakout board screw terminal.


Connection details to follow.

Steve

[steveb946]

Gang, Here is useful code which I have tested to do the auto tool touch off:

[url=http://www.cooperman.talktalk.net/index.htm]
Click on the tool setting button, then scroll down to the Tool setting Z description and button code for MACH3.

All you need with this is a touch probe with a known height, with the connection fed into pin 15 on the NM-145 Breakout board screw terminal.


Connection details--

Steve

Due to the non-osolated electrical input to pin 15 on the BOB, the probing is erratic due to electrical noise.

This needs to be corrected by adding an opto-coupler between the probe and pin 15. I will post a schematic if anyone is interested.

[MRM RCModels]

Gang, Here is useful code which I have tested to do the auto tool touch off:

[url=http://www.cooperman.talktalk.net/index.htm]
Click on the tool setting button, then scroll down to the Tool setting Z description and button code for MACH3.

All you need with this is a touch probe with a known height, with the connection fed into pin 15 on the NM-145 Breakout board screw terminal.


Connection details to follow.

Steve

Please do. I have a 200 on the way, but wiring should be similar.

[steveb946]

Due to the non-osolated electrical input to pin 15 on the BOB, the probing is erratic due to electrical noise.

This needs to be corrected by adding an opto-coupler between the probe and pin 15. I will post a schematic if anyone is interested.

Here is the schematic for the isolated probe circuit. There are only four electronic components. Just solder them onto a small Radio Shack perforated board (with solder pads on the back side). The cabling from the electronics must be shielded all the way out to the probe location.

[steveb946]

Here is the schematic for the isolated probe circuit. There are only four electronic components. Just solder them onto a small Radio Shack perforated board (with solder pads on the back side). The cabling from the electronics must be shielded all the way out to the probe location.

I forgot to add the pin numbers to the 6-pin opto isolator:

Input anode-LED = pin1, Cathode= Pin 2
Output collector= Pin 5, Emitter = Pin 4, and pin 6 = No connection.