Dragon mount bmg NO INSERTS

https://www.thingiverse.com/thing:4441076 presented a thumb screw to replace the wing nut on the front-left corner of the BIBO bed. It is too wide for the other two positions.
I have created a smaller version to fit the right-front corner and the back-center.

A M3-.50 nut is required.
^^^^^

I've changed some miner isues because it did fit with the heater block so I've made a cutout for that and now you dont need a m3 insert