E61 (58 mm) Portafilter funnel.

Here I have a simple portafilter funnel for your E61 systems for you :)

As simple as it is it took quite some time to find a design with a nice and reliable fitting.

I added a small “bulge” to have the funnel sit tight but not too tight. The aim for the funnel was not to fall down when the portafilter is turned over, but still to be easy to attach and detach.

Have fun!

If the fitting is too tight (for ex. due to printing tolerances) you can heat up the funnel at the tip a little bit and insert it again into the filter. Alternatively you can scale the design up/ down a tiny amount and reprint it.

Other cool coffee tools that are designed by me:
https://www.printables.com/@MeisterEdel/collections/128638