Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:5175525.
This is an over engineered mitten and boot dryer for use over a forced air furnace vent measuring 14 inches by 6 inches (350mm X 150mm). Each tube can be turned on or off and has a unique air flow path forcing air out into the mitten but allowing a path for wet return air to exit.
Twist clockwise to turn on and counter clockwise to turn off, this allows only some of the tubes to be covered at one time. A visual indicator window users to check the status. An optional MMU version of the support tube allows the addition of color to the visual indicator.
All pieces print support free. I recommend PETG or some other higher temp plastic as PLA may warp. Printing at 0.3mm layer height with a 0.6mm nozzle will also save a lot of print time.
Four small M3 self tapping wood screws or similar are need to assembly the two halves of the base. The support tubes screw into the base and the dryer tubes click into the support tubes.
Updates: 2021Dec30 - Add a version of the Dryer tube with a thicker tip for higher traffic areas. I noticed one of mine right next to the cold door broke due to contact with a stray boot or some suck.