Spindle buries Bitsetter to bottom

CNC Machines Shapeoko 5 Pro
1

This has happened twice in the first week of learning to work this thing!

Right after a tool change it moved over to the BS and just went down to the bottom, stopped and gave error message about Bitsetter. I looked at the bit and thought- that looks to be set a little long maybe? It didn’t come close to crashing the side of the BS though. I loosened it and slid it up some and restarted everything. Seemed to work fine after that. The 2nd time was exactly the same scenario- it smashed the BS, stopped, error message, and I reset the height of the bit. Worked again.

Anyone else have this happen?
Was this a glitch or is bit insertion distance that critical without any way to know when you’re close to a crash position?

I’d like to not have this happen in the middle of a project and have to throw away and start over…

Thanks, Jim

2

Usually this is caused by a mismatch between job setup:

https://carbide3d.com/hub/courses/create/job-setup/

and how origin is set relative to the stock:

https://carbide3d.com/hub/courses/running-shapeoko/movements-zeroing/

c.f.,

https://carbide3d.com/blog/unexpected-z-axis-plunges/

3

When this happened to me it was because the bitsetter connector was loose.

4

Press the button down to see if red light comes on. If it does not check connections before proceeding. You can do that check anytime you want except during the probing cycle and it won’t hurt anything.

Bet you have flaky connection.

5

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