Key Hanger V2 - Impossible Passthrough

Whats new in V2?

Overall the design is much more functional while also adding new features:

New Print-in-place Center Column Much easier to thread into the hanger, and adds more ‘fidgetability’. You can now hang or remove your keys without having to twist the keychain
No more issue at some angles where the keyring gets stuck or sticks out It always rotates and sits perfectly vertical.
Redesigned wall rack for strength + easier printing,  Improved tolerances so no more stuck keys
Slightly smaller design despite these new features

Key Hanger V2 – Impossible Passthrough

Created by Dotted Lines for the Makerworld Hangers Contest in August, 2024.

New & Improved version of my design: Key Hanger – Impossible Passthrough

I 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! V2.1 Edit: Added slight tapering to the end of wall rack - it's now easier to thread without lining up 

V2.15 Edit: Uploaded extra profiles for each printer, added .STEP files for anyone remixing 

V2.2 Edit: Added new print profile for larger/wider keyrings

V2.3 Edit: Fixed hole spacing on the screw backplate version

Compatible with all Bambu printers: X1 series, P1 Series, A1, and A1 Mini

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
• If you have issues with the keyring breaking, I recommend checking out the print profile created by 3DWill here

What if I already printed V1?

Unfortunately those parts are not compatible as the tolerances and size have changed slightly

Print Settings (recommended)

• Avoid crossing wall
• Slow speeds
• Reduce infill retraction - no

For commercial rights:  https://www.patreon.com/DottedLines

Check out my other models: