! Under Override?

Post technical questions about the Buildbotic Controller here.
Forum rules
No profanity, no gambling, no illegal activity, so sexual or pornographic material.

Posts not related to the Buildbotic CNC Controller are likely to be moved or deleted.
Post Reply
User avatar
smokey9lives
Posts: 8
Joined: Wed Nov 20, 2019 11:27 am

! Under Override?

Post by smokey9lives » Thu Dec 12, 2019 6:56 pm

Hi Doug,
How do I override the "! under" warning that is preventing me from running my file?

I need to be able to go under to cut all the way through into a spoil board. In another case, I have a tool that needs to use its own weight to make a mark, so it needs to go below Z0.

I don't understand why this "safety" measure installed. It is common to go under Z0 when doing contour cuts through plywood or other materials.

Thanks,
Jason

User avatar
Doug
Posts: 343
Joined: Fri Feb 02, 2018 4:56 pm

Re: ! Under Override?

Post by Doug » Thu Dec 12, 2019 9:31 pm

If you get the "Under" message on an axis, it means that the GCode program that is currently loaded would cause the spindle to travel below the lower soft limit for that axis. To resolve this, go to the 'Motor' configuration page for that axis and adjust the lower soft limit. For the 'Z' axis, you can make the lower soft limit as low as you want. For instance, -100 should work pretty well.

Make sure to refresh the browser after making this configuration change.

Please let me know whether this helps.

User avatar
Doug
Posts: 343
Joined: Fri Feb 02, 2018 4:56 pm

Re: ! Under Override?

Post by Doug » Thu Dec 12, 2019 9:31 pm

If you get the "Under" message on an axis, it means that the GCode program that is currently loaded would cause the spindle to travel below the lower soft limit for that axis. To resolve this, go to the 'Motor' configuration page for that axis and adjust the lower soft limit. For the 'Z' axis, you can make the lower soft limit as low as you want. For instance, -100 should work pretty well.

Make sure to refresh the browser after making this configuration change.

Please let me know whether this helps.

Post Reply