Rigid Tapping - Checking soft limits

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cwatson1982
Posts: 39
Joined: Tue Jun 02, 2020 11:14 pm

Rigid Tapping - Checking soft limits

Post by cwatson1982 » Sat Feb 06, 2021 10:08 pm

What would be the best way to check for a violation of soft-limits on my Z axis prior to actually initiating motion in my rigid tapping program? (it's still just a fairly simple modification of the notifytapMach3 program, I got it working and never got time to make it better(tm) ).

I broke a tap today because as the tapping program plunged, the Z axis soft limit was hit, causing Z motion to feed hold while the spindle kept going :) took me 20 minutes to figure that out and now I would like to prevent it from happening in the future BEFORE the tap plunges instead of at the bottom of the hole.

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TomKerekes
Posts: 2529
Joined: Mon Dec 04, 2017 1:49 am

Re: Rigid Tapping - Checking soft limits

Post by TomKerekes » Sun Feb 07, 2021 3:41 pm

Most tapping C programs calculate a final Z depth. You should be able to simply compare that with the negative soft limit value.

If you can't figure it out post your tapping program and we may be able to help.
Regards,

Tom Kerekes
Dynomotion, Inc.

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