I didn't want to hack at this beautiful new portafilter and I dreaded a mod that would be visible. Why make such a nice looking piece of equipment look ugly?
The solution was simple first I gathered the tools I would need: (All-purpose sand paper sheet)
By holding the portafilter it was easy to sand off the top lip of the portafilter to shorten the length between the basket rim and bottom of the portafilter ear. Other modifications that I saw involved milling the ear leaving raw brass exposed. I didn't want that look.
Here my other hand is holding the camera, but you get the idea.
The results after about 10 minutes (its slow but you'll have complete control and end up with a clean and level edge!
Having done this I've seen that not too much is needed to be taken off. Above is the finished product and now my Quickmill double basket, Synesso triple ridgeless and LM double fit wonderfully (with or without the portafilter spring). Also the best part is the filter basket completely covers the modified edge (which if using a sandpaper fine enough will be smooth and very even). You could use a coarse then finish with fine grit too.
The portafilter should now fit perfectly!
) granted I use my convex tamper. I took the photo above with the LM basket that Chris sells with the portafilter to show the modification on the portafilter as purchased.
