The prototype work connects digital geometry to physical fit observations. Available CAD/mesh files demonstrate archived designs; photographs and check-ins establish the narrower claims of printed parts and preliminary fit work. Native assemblies, dependencies, tolerances and printability were not independently verified. SD2 check-ins
| Build progression | Artifact/status | Engineering follow-through |
|---|---|---|
| Initial enclosure concept | Two-ring tube/cap geometry, then screw-cap/sleeve concept in GA2 | Closure/seal selection rationale in D05; materials/interfaces in C04 |
| Screw-cap revision | Earlier section/trimetric CAD screenshots and print-ready STLs | Opening/thread-pass issue and changed geometry recorded in T02 |
| Enclosure iteration 2 | Updated cap/sleeve and section screenshots; GA3 describes printing for further testing | Verify fit before coating and then evaluate sealing, T03 |
| Reference coupon | Separate PETG dimensional/coating notes; September 29 narrative also proposes PLA reference prints | Keep material/date contexts separate; arithmetic in A06 |
| Propulsion mounting | Iteration 1/2 CAD, white printed mount and thruster stand-in; minor redesign after fitting | Reported component fit in T02; assembled retention/gear trial still T07 |
| Battery layout model | Green printed battery form for packaging/layout | Mockup, not a functioning battery or endurance demonstration |
| Wrist enclosure | First printed threaded cap and switch mechanism | Thread, switch retention and print-orientation changes follow T02 |
| Electronics | Circuit mapping and optimized PCB design; preliminary physical component work | Fabrication decision awaits circuit verification, T04 |
Manufacturing plans include cap/sleeve tolerance adjustment, reference prints and checking whether a coating changes the fit. The records do not establish repeatable process tolerances, completed post-coating assembly or successful water exclusion. Material names must stay tied to their actual artifact instead of transferring PETG coupon measurements to every printed part. Enclosure check-in



