Coffee Funnel for 52mm Portafilter

Fits snugly on my Portafilter.

I Designed this 100% myself so I can release it as GNU - GPLv3 (not v2 as indicated on this web page) - I sell these for $10, why not you too? stuff trying to copyright data, upgrade your brains please...

This has been designed so that you can use your tamper with the funnel on and get no spillage. Obvious I hope?

This could be printed clear so you can see how much coffee goes in, for me it's approx 25 seconds on my grinder.