Balancer Grid Deck Plate
Part of the 'NEMA17 Self-Balancing Robot Frame' kit (print ×2): a 120 x 80 x 4 mm deck with 6 mm corner radii and a 55-hole M3 grid (3.4 mm holes on a 10 mm pitch). NEMA17 motor hangers and tip-over skids bolt to the grid with M3x12 screws and nuts. Two column patterns, at (±54, ±34) and (±44, ±34), take M3x10 screws into the 12 mm heat-set stack columns, and four 10 x 6 mm edge notches pass wiring between decks.
robotics kit deck-plate self-balancing