sl-mechanical
5bb5c7f863
Replaces placeholder 185x72x52mm battery spec with caliper-verified pack dimensions. 2 packs side-by-side is the default config. Geometry impact: - PLATE_DEPTH reduced to 210mm (2x88mm + 17mm margin each side) - Battery zone: 420x176mm centred between motor forks (fits 600mm wheelbase) - Mount holes repositioned: 4 per pack x 2 packs = 8 M4 holes at (±(BATT_L/2 - 18), ±BATT_W/2) - Velcro strap slots: 25mm wide, pierce full plate depth at x=±BATT_L/4 - 4-pack expansion: optional M5 shelf bolt holes when BATT_PACKS=4 (only viable 4-pack layout is 2+2 underdeck — analysed in BOM) - Battery ghost in assembly preview shows 2-pack deck layout 4-pack analysis (added to BOM): in-line 840mm > wheelbase, side-by-side 352mm > plate depth → 2+2 underdeck shelf is the only viable 4-pack configuration Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>