Acorn no longer follows touch off macro

[wwolski]

Hi,
Last year I set up a touch off macro so that the tool a) goes to a tool change position b) jog over to touch place c) bit lowers until it touches touch plate and then the bit should automatically move up.

Recently, the bit does not move up after touching plate.

I re-checked checked the wiring

Perhaps settings are lost, or there is a problem with the controller

I have attached a report.

Thanks

[cncsnw]

When it should move up, what does it do instead? Does it act like the cycle is complete, and go on to the next thing? Does it report an error and cancel whatever program cycle is running? Or does it continue to say "Moving..." even though it is no longer moving?

Set Machine Parameter 10 = 3 so that you can see the lines of code within the macro as it runs.

[swissi]

wwolski,

looks like CNC12 has changed the behavior with G moves in a probe tripped situation. If your TT has a probe detect signal, CNC12 no longer lets you execute the G53 move when the probe is in a tripped state.

I looked at your mfunc6.mac file and have seen that you are doing a fast probing move and than just retract until the TT clears. It's better practice to retract the amount specified in parameter 13. You also need to retract first to a non tripped state after the 2nd measurement before you can move the Z axis up with G53.

Download the attached mfunc6.mac file and let me know if this fixes your problem.

mfunc6.mac

(9.3 KiB) Downloaded 116 times

-swissi

[wwolski]

Hi Swissi,

I was able to get a proper touch off yesterday, but it took a few tries..

I will try your updated macro as it seems more robust
Thanks,
Wil