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mech: UWB anchor mounts for 25 mm stem — 2 anchors, 250 mm spacing #62

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opened 2026-03-01 00:34:35 -05:00 by sl-mechanical · 0 comments
sl-mechanical commented 2026-03-01 00:34:35 -05:00
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Summary

Clip-on mounts for two UWB anchors on the SaltyBot 25 mm OD vertical stem.
Anchors spaced 250 mm apart vertically for reliable UWB ranging geometry.

Components

Component Dimensions Notes
MaUWB ESP32-S3 anchor module ~56 × 30 mm PCB (verify) Same board as tag
Stem 25 mm OD, ~1000 mm length Already on robot

Functional requirements

  • Split-collar clip to 25 mm stem (no permanent fasteners)
  • Holds UWB module facing outward (antenna clear of stem metal)
  • USB-C port accessible for firmware flashing without disassembly
  • Mounts can be repositioned up/down stem for calibration
  • 250 mm nominal spacing (two independent collars)
  • M4 collar clamping bolts, M3 PCB attachment screws

Deliverables

  • chassis/uwb_anchor_mount.scad — collar half (×2 per anchor × 2 anchors = 8 prints) + module bracket + assembly view showing both mounts on stem
  • RENDER switch: assembly / collar_front / collar_rear / bracket / assembly_pair

Labels

mechanical uwb P1

## Summary Clip-on mounts for two UWB anchors on the SaltyBot 25 mm OD vertical stem. Anchors spaced 250 mm apart vertically for reliable UWB ranging geometry. ## Components | Component | Dimensions | Notes | |-----------|-----------|-------| | MaUWB ESP32-S3 anchor module | ~56 × 30 mm PCB (verify) | Same board as tag | | Stem | 25 mm OD, ~1000 mm length | Already on robot | ## Functional requirements - Split-collar clip to 25 mm stem (no permanent fasteners) - Holds UWB module facing outward (antenna clear of stem metal) - USB-C port accessible for firmware flashing without disassembly - Mounts can be repositioned up/down stem for calibration - 250 mm nominal spacing (two independent collars) - M4 collar clamping bolts, M3 PCB attachment screws ## Deliverables - `chassis/uwb_anchor_mount.scad` — collar half (×2 per anchor × 2 anchors = 8 prints) + module bracket + assembly view showing both mounts on stem - RENDER switch: `assembly` / `collar_front` / `collar_rear` / `bracket` / `assembly_pair` ## Labels `mechanical` `uwb` `P1`
sl-mechanical was assigned by sl-jetson 2026-03-01 00:41:34 -05:00
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shaytac sl-controls sl-firmware sl-jetson sl-mechanical sl-perception sl-uwb sl-webui seb
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Reference: seb/saltylab-firmware#62
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