Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:2760743.

This is a replacement part for a GT52 garage door opener.

I never got a chance to try this out as I ordered one online before I decided to make one and it arrived before I'd finished it.

But someone may find it useful.

I'm not guaranteeing this part will work.

Just a thought, the spring parts on the bottom make me think this part would be best printed horizontal with supports