Once again I comeback to the mountain for guidance. I am drawing a blank on what I am missing.

Have a very basic adjustable sled of 3/4 Baltic Birch with 4" end pieces of .5, .625, and .75 thickness for the workpiece in use.

Sled is 24 long by 12 wide.Click image for larger version.  Name: adj sled.jpg  Views: 54  Size: 1.03 MB  ID: 70660 shown here with a 6" long by 5.5 in wide workpiece, 0.5 in thickness.

MPC configured with a .5" thickness

Sled seems to have worked well on a variety of workpiece sizes, but none of the previous pieces had a cutpath or thru drilled hole.
This workpiece has 3 holes to be drilled through the workpiece.

Initial loadup went well. Found the bit, Found the surface.
When the machine went through its "finding thickness" routine, it homed on the side nearest the keypad, then moved just past the workpiece to home again.
A Z-stall error was returned as the bit dropped and touched the sled.

I sure thought I had done this type of sled arrangement ( with thru cutpaths) and got the notification along the lines of "Cut thru project or board?"

Thoughts on what I am missing? Or am I trying to do something I cannot - only thought I had done so?

Thanks!

keninar

Just reread the post title. Appears that I cannot remember how to spell, either. Apologies!