SDS Max drive shaft cover/protector

When using a SDS-Max machine we all know that it is important to grease the shank generously, this in turn causes the shank to be messy and the old grease is black and hard to clean from the hands. So when the bit is not in use I put this cover on, it also protects the shank from sand and such. Print with ABS or similar slightly flexibel filament.
I've added a version 2 of the cover, it is essentially the same but with added support for the columns when printing. These should be cut away after