KipperTie Revolva BLANK Cartridge

So KipperTie makes a great PL mount for the Freefly Ember. However, this particular model - called “Revolva” is designed to use cartridges with filters. Unfortunately when one buys this mount from Freefly for use with the Ember: A: one doesn't need a neutral density filter for highspeed and b: nowhere is it mentioned that it ships without a blank cartridge. Now the blank cartridge is a whopping $300!

It has no optical elements or glass in it, so when we were faced with this surprising problem, it was obvious to 3d model and print it out. 

It took multiple (8) iterations, to get a perfect fit, but here you go :-) 

Best to print in PETG, black if possible, else PLA will work too. If you don't have black filament handy, spray paint it matte black, preferably multple coats.