Two Stage CNC Touchoff Pad

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24 Jan 2019 04:20 - 24 Jan 2019 04:21 #124711 by CrashCNC
Gents-

Here's the start of a project, with the ultimate goal of creating a cheap reliable touch less touch off plate.
https://www.youtube.com/watch?v=SI2NClO7Y30

This initial laser trip setup speeds up cycle time of touching off tools immensely.

The system takes advantage of linux CNC's G38.3 versus G38.5 calls (inverted triggers). Let me know if you have a suggestion on how to improve this idea.

Crash
Last edit: 24 Jan 2019 04:21 by CrashCNC.

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24 Jan 2019 09:22 #124717 by pl7i92
Replied by pl7i92 on topic Two Stage CNC Touchoff Pad
THE Cheepest Touchoff is to use a Pice of FR4 PCB and simply touch on the top of the part
or as americans like more to touch the Mounting plate

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24 Jan 2019 13:47 #124738 by andypugh
Replied by andypugh on topic Two Stage CNC Touchoff Pad
So, you use a single probe input, make on laser and break on touch? That's fairly cunning.

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26 Jan 2019 00:02 - 26 Jan 2019 00:03 #124866 by CrashCNC
Replied by CrashCNC on topic Two Stage CNC Touchoff Pad
Correct. 1 probe input.

What's sweet is when the first probe trips in linuxcnc there is an opportunity to fool the machine into probing at a different feedrate.

Crash
Last edit: 26 Jan 2019 00:03 by CrashCNC.

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