This is an iPhone 17 Air ultralight case made to work with Hex Connect mounts. The non-XL variants can be printed with less than 22g of filament!
Also pictured: my Hex Connect mountain bike head tube mount
Made to be printed in rigid plastics, ideally ABS or ASA for their toughness, though PLA will work fine too.
The three provided variants are:
Standard with Magsafe - Connects to the standard Hex Connect connector. Has a recess for mounting a thin Magsafe metal sticker with ID of 45mm and OD of 55mm.
Standard without Magsafe - Connects to the standard Hex Connect connector without the Magsafe recess.
XL - Connects to the XL Hex Connect connector. It's too thick for proper Magsafe functionality so no magsafe recess included.
Standard vs XL pros and cons:
Connector
Pros
Cons
Standard
Thin enough for proper Magsafe support (2mm)
Slimmer case is more convenient for everyday use
Allows use with Magsafe mounts using a case mounted metal ring
Probably stronger than you would expect :)
Not as strong as XL
XL
Strongest connection for high intensity activities