Eureka Mignon Perfetto Knob

thingiverse

This is a larger grind adjustment knob with a pointer indicator of the setting. The adjustment knob is fixed to the original part with a M4 screw and a matching nut. The nut is inserted in the gap on the bottom of the knob to provide thread for the screw. I used a piece of rubber pad on the inside gap of the knob, to prevent damage due to screw to the original knob. The pointer replaces the original cap and is put into the central brass part of a mechanism, which is static during grind adjustment. The label (InkScape svg file) is printed on transparent vinyl paper and sticked onto the knob.