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2S 18650 Strapped Battery Tray
The battery tray for the 'SG90 18-DOF Hexapod Walker' kit. It is a 46 x 76 x 16 mm open tray with a 40 x 70 mm cavity that holds a side-by-side 2S pack of two 18650 cells (18.4 x 65 mm each) with room for the BMS leads. Four M3 holes at (±10, ±30) have captured M3 hex-nut pockets, so M3x10 screws from under the deck hold it on. A 20 mm hook-and-loop strap goes through the 22 x 3 mm wall slots and under the pack, and a 10 x 8 mm notch lets the leads out.
Flagged: battery or DC power. Not for safety-critical use without independent engineering review.
18650 Battery Top Deck
Part of the 'NEMA17 Self-Balancing Robot Frame' kit (print ×1): the 120 × 80 × 4 mm top deck, which bolts to the stack columns with four M3x10 screws through 3.4 mm holes at (±44, ±34). A tray with 2 mm walls rises 14 mm above the deck and holds a 3S 18650 pack in a 70 × 58 mm space. Four 20 × 3 mm slots take two 20 mm hook-and-loop straps. A 12 × 8 mm notch in the end wall and a 20 × 8 mm floor slot route the battery leads down to the electronics deck.
Flagged: battery or DC power. Not for safety-critical use without independent engineering review.