Version 2 of my coffee grounds bin with built in scraper.

Please like if you download/print this - I'm new to designing and 3D printing  - consider boosting if you have any credits - thanks it's appreciated.

I made this as when I used the knock method the cup would often fall out of my handle.

This model allows you to simply twist your portafilter on the top of the grounds bin and the built in scraper will losen the compacted coffee grounds without having to bang it and the grounds fall into the bin to collect for compost or however you normally dispose of your used grounds.

Bar can be flipped over so can still be used with traditional knock method - best of both worlds!

I printed without supports even though it recommended supports (for the coffee bean embossment, no issue with the 1mm overhang

Edit: Added a second version of the bar so one is tapered on 4 sides, the other is tapered on only 2 sides - 4 sided is suitable for single smaller cups, 2 sided taper digs the grinds out of the double larger cups.