Blink Doorbell button replacement (First/Early Gen)

This should fit all early generation Blink smart doorbells.  Put the retaining ring over the screw post making sure to match the chamfered edges.  Then put in in the existing doorbell button and twist the retaining ring 90 degrees.  The ring should be a tight fit against the body and should take some force to twist it on.  It should pop and lock in place once turned.  The post should be somewhat loose and should click when pressed down.  Carefully screw on the button top until it starts to snug up.

I've also left a 0.05mm circle on the face of the button if you wanted to do a multi-color print.  It's shallow enough to not be put on a new layer, but your slicer should let you fill that area easily.  You can just leave it as is for a simple print.