GSI Outdoor Java Mill - Inner Burr Holder (Bushing) Replacement

This is a replacement part for the bushing in the GSI Outdoor Java Mill.  It's a remix from cgfan's original part.    My design further reduces the play between the inner burr holder (bushing) and aluminum adjustment nut.

I used PLA but a stronger material is recommended.  Regardless the material used, print a few as backup because the part will eventually fail again. You still can't grind light roasted beans or use a very small ground (espresso) size since it too much force for the bushing to handle...this is a design flaw of this GSI grinder.  I've been using it to grinding medium to dark roast beans with a medium ground size without an problem.  The bushing will last months of daily use before it fails

The part can be printed without supports and without a raft.  I've printed it on my Ender 3 Pro and on a glass plate (Ultimate 2+).  If your part doesn't stick to your bed, try using a raft. 

Enjoy