Apple Watch Ultra charger puck travel case with cable wrap
A pocket-size case for the Apple Watch magnetic fast charger used by the Ultra and Series 10, holding the puck (27.9 mm diameter, about 6 mm high) in a 28.4 mm recess while the 1 m cable winds around a spool inside the lid. The USB-C plug tucks into a 12.5 x 7 mm slot so nothing rattles, the two halves close with a snap lip and 0.15 mm clearance, and the closed case is 65 x 65 x 22 mm with 1.6 mm walls. Both halves print open side up.
Downloaded cases are drawn for the older Lightning puck and leave the fast charger loose. In SpeakCAD you say which puck and cable length you have, preview the case free in the browser, add a hinge or an AirPods pocket in the chat, then download the STL.
Design a two-part travel case 65 x 65 x 22 mm with a 28.4 mm diameter, 6.5 mm deep pocket for an Apple Watch charger puck, an internal spool 20 mm wide for a 1 m cable, a 12.5 x 7 mm USB-C plug slot, a snap-fit lid with 0.15 mm clearance and 1.6 mm walls.