Summary

Simple door catch to stop doors slamming.

I designed this little catch because I had a couple of doors that slammed closed when I opened windows for a through draft.

I've printed mine in ABS. First design has been in use for at least 4 months and is still going strong. V2 was a very slight redesign of the base plate for added strength if hit by vacuum cleaners.

Disclaimer:
Obviously this catch should not be used to keep fire safety doors open! Fire doors should remain closed whenever possible to prevent potential fires spreading.