sl-mechanical
61c716ee58
3× MaUWB ESP32-S3 follow-me UWB system: 1 wearable tag, 2 robot anchors. chassis/uwb_tag_enclosure.scad Belt-clip enclosure for MaUWB PCB (~50×25×10 mm) + TP4056 micro-USB charger + 18650 cell. Snap-fit PETG shell + TPU 95A bumper sleeve. IP44-ish 4 mm overlap + 2-turn labyrinth seam. Open antenna window in lid (no PLA within 10 mm of UWB antenna). Power switch cutout (Y− face), micro-USB port (X− face), LED window hole (Y+ face). Belt clip integrated (PETG spring arm, 42 mm belt slot). RENDER: body/lid/tpu_bumper/assembly. chassis/uwb_anchor_mount.scad Stem-mounted anchor bracket for 25 mm OD stem. Split D-collar with M4 thumbscrews (tool-free), M4 hex nut pockets, M4 set screw height lock. Anti-rotation flat tab on front half prevents axial rotation without stem modification. USB cable routing channel in rear half. Module bracket tilted 10° outward — antenna faces horizon, clears stem metal. Back-wall cutout behind antenna section (10 mm clearance). 250 mm anchor spacing (RENDER "pair" shows both on stem section). RENDER: collar_front/collar_rear/ bracket/assembly/pair. chassis/uwb_assembly.md Full assembly notes: antenna clearance rules, IP44 seam description, stem positioning diagram (anchors at 450 mm + 700 mm), USB cable routing, complete BOM (~300 g total, tag ~130 g). Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>