Dehumidifier rod magnetic holder using 12x3 puck magnets

My MK3S was getting an ‘under temp’ error in a cold garage in the winter. Adding a safe dehumidifier helped keep the temp above the error threshold of about 50°F. The dehumidifier is essentially a stick-shaped weak electric heater. These are commonly sold in the US for dehumidifying safes. A 12" stick heater fits well in the prusa enclosure below the filament reel.

I initially built another version that used smaller stick magnets, but it had trouble with vertical mounting due to the weight of the cord dragging it down.

Redesigned with the 12x3 puck magnets I had on hand. Magnets are friction fitted, but adding a spot of glue on the backside is recommended. I've included a parametric source file to make it easy to tweak the dimensions for other puck magnets.

Designed for 12x3 puck magnets and PLA instead of TPU.