Bottle Opener Dusters

I designed this bottle opener in the shape of some knuckle dusters with a slot for a British penny to fit in for my dad for fathers day since I also bought him some bottled beer.

Video of finished FreeCAD model...

https://odysee.com/@BurtyBasset:a/Bottle-Top-Dusters-%2B-Penny:4?r=7uE9GM4rMSFdcHNpVhsPLc6ptd4arNP9

I did model two previous versions and printed them out, but settled on this one as the happy medium between the two.

The penny slot fits reasonably snugly, but glue can be added if one so desires. I wrapped a small amount of toilet paper around the edge of the coin that can't be seen and this dealt with the very minor amount of wiggle room.

I printed this in gold PLA as it was the closest colour to brass that I have. I recommend a minimum of 30% infill and if you use supports to print, I would recommend disabling support interface if using Cura slicer. The first one I printed I couldn't remove the support from the area where the penny fits being only about a 1m