Anycubic Mega S Duct Remix

This is a remix of a bunch of different designs, but in the end it sort of became its own design.Can be done in PLA or ABS (which is what I did here)

This fan duct is made to accommodate a TMC2208 / TMC2209 stepper motor driver upgrade for the Anycubic Mega (i3 and S). It is compatible with a 40mm computer fan (M3 screws that are 32mm apart).

I've added the following features:
- made the opening of the duct more symmetrical than other designs
- redirected air to the rest of the board
- thickened side walls (but will still fit even if you dont change the physical motor driver connector orientations like i've done in the pictures)
- allowed for more flexible mounting points if screws dont perfectly line up