Engrave large diameter object on K40 laser

K40 is small. If we do not cut a large opening at the bottom, we cannot fit large diameter object even on the low profile rotary.

https://lightobject.com/mini-2-axis-rotary-for-eng...

One way to put in a large bottle/cup is to bend a spare laser head mounting plate at an angle. Now we can fit something big on the rotary:)