While this coffee grinder is great for the money, it can only grind into the dosing cup provided and I've always missed having the ease of letting the grounds go directly into the portafilter.

So I designed a quick and dirty slip-on+clamp holder for 53/54mm portafilters (Breville, Sage etc. Machines), which allows you to adjust for the height of your funnel and distance from grinder. Uses M3 hardware to secure tightly to the grinder, and some anti-slip pads so the portafilter doesn't move from vibrations when grinding.

I don't have a 58mm portafilter machine so unfortunately I can't accomodate for that, but I've provided the STEP file if anyone wants to make a custom version of this.

No supports required as long as your overhangs are well tuned, otherwise tree support for the front tab holder.

Hardware required:

1x M3 20mm

1x M3 Nut

2x Anti-slip pads (Cut to size and stick where the other two tabs of the portafilter sit).

Enjoy!