duet 0.8.5 / DuetWifi holder and feet for 2020 kossel mini

These are the parts to hold duet 0.8.5 under build platform of the kossel mini
with 2020 extrusions. In particular for the base side extrusions of 24cm. It
also includes feet to raise the printer above the table and optional rubber
shoes (to be printed rubber filament) for the said feet. They make the whole
thing much more quiet.


I do not have panel due and do not plan to have so I don't know whether it
plays along well.


To make use of the thing you need to print 3 feet, 4 holder