Over the door towel rod holder

As it says on the tin, a simple towel rod holder that fits over a door. Print two. There's 3 versions:
"No stopper", which is just an open tube your towel rod can fit thru,
"with Stopper", which has one end closed to hold it. Simply mirror this so you have both ends covered.
and "Centered stopper", which does not need mirroring, its closed in the middle and open on either end (support recommended but not strictly needed.

Rod size up to 16.5 mm Diameter. Max Door thickness 35.6 mm.
Overall dimensions: 137mm x 186.5mm

If its a bit too big for your door or rod to hold on friction alone, you can resize slightly or get cheap two-sided sticky pads.

Made in TinkerCAD, because the one that came with my apartment was directly over the toilet and under a cabinet, so even a handtowel would be mostly just resting on the Tank. Since my bathroom lacks open wallspace, i used the door!

Print instructions

I used PET because when i printed it in PLA it started to bend over time, otherwise just use thick walls, I used 3 on my 0.4mm nozzle and it works fine.