3D Printed Impossible Passthrough Key Hanger

3D Printed Impossible Passthrough Key Hanger by Dotted Lines

Printed On Bambu Lab X1-Carbon Using Filament eSun PLA+

Printed without Supports, Printed without Rafts, Infill 15 %

Dotted Lines love the recent trend of ‘impossible passthrough’ objects, but they have been limited mostly to toys and sculptures. I set out to create something functional with this technique – and I settled on a key hanger and key chain. The ‘passthrough’ portion features extra struts which make it much easier to print, and they keep the rack strong with continued use. I hope you enjoy, please like & boost if you’d like to see more models!

Instructions

  • In the 3mf file there is a version of the rack with and without screw holes.

  • The screw hole version is designed to fit #2 wood screws (should fit most wall anchors as well), and the other version can use double-sided mounting tape.

  • Simply print one rack, and three keychains

  • There are two plates for keychains: single color, or print-by-object for easy multicolor

Tips

  • If you encounter stringing, you may want to use a blow torch or heat gun to quickly remove

  • Like most pasthrough objects, any friction will loosen over time