Temp sensor housing v3b

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.

One of the vertices at the bottom was slightly above the build plane which was causing the slicer to not add a brim at one corner and on my printer the corner was lifting off the build plate - I moved it back down and now it prints perfectly. I know I should really tune my printer better so I don't need a brim...