Portafilter Ring - bulky knock box alternative - Easy and fast print - functional - Wave Coffee - Coffee nerd - Useful

This ring is designed to prevent the filter from falling into the trash along with the used coffee when you empty the portafilter. It offers a simple alternative to a bulky knock box. By holding the filter in place, it allows you to dispose of the coffee grounds directly into the bin without losing the filter.

Instructions:

1- Pour yourself a nice coffee:

2- When done, take the portafilter out and put the ring over it:

Twist to secure it:

3- Empty the portafilter over the bin (the ring prevents the filter to fall in with the used coffee):

4- Rinse well under water:

You are now all set to make yourself another well deserved coffee. 

The design has overhangs so a bit of support is required:

Tolerances will allow the ring to work even you have a bit of leftover support material stuck on the part that you can't remove. I was the case for me and it's not problem for securing the ring over the portafilter. 

If you own another machine than a Delonghi EC685 Dedica or Severin KA 5995, I can gladly design a ring to your specs. I just need the following dimensions to get started :

Message me, and I will get back to you as soon as I can.

If you’d like to support my work, leaving a ♡ like ♥ or even buying me a coffee ☕ goes a long way. I love creating and sharing my designs, but my Mk2.5s is getting old, and every bit of support helps.