Hydration Bladder Dryer (with stand and hanger)

PLEASE NOTE: This is an old design - check out the new version here!

Hydration bladders for hiking and biking are a very handy thing; the trouble is just getting them to dry after use, ideally fast.

For that, I created this dryer that can be slid into the hydration bladder to prop it open, with a stand to let the remaining water run out and a hanger to then let it dry up completely, at some place where it doesn't get in the way.

The dryer nicely fits my 2-litre Atacama hydration bladder. Depending on what size and shape you have, you might have to resize the dryer.

I designed it so that all parts can be printed on a 180x180 mm print bed (e.g. Prusa MINI) in two print sessions.

The stand was taken from the Mini Collapsible Basket by 3DPRINTINGWORLD; I adapted it slightly to get the hinge working more easily.

Print Settings

Printer:

Original Prusa MINI+

Rafts: 

No

Supports:

No

Resolution: 

0.2 mm

Infill:

15%

Filament:

PrimaValue PLA Blue

Notes:

You may want to use thinner layers for the folding stand, otherwise the hinge may stick together. Took me a few attempts to get it working without breaking - YMMV.

I recommend using a filament that stays somewhat flexible after cooling down. The arms need to be bent a little to get the dryer into the bladder and back out.