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Pen Lift Guide Frame
This C-frame is the pen-lift guide for the 'NEMA17 Cantilever Pen Plotter' kit. It bolts to the pen shuttle's M3 heat-set grid (20 x 20 mm) with four M3x10 screws. Two 4 x 55 mm steel guide pins press into its 6 mm arms 24 mm apart, and a 16 mm pen pass hole runs between them. An SG90 servo fits a 23.5 x 13 mm window with slotted tab holes that take 26–31 mm tab spacing. The frame measures 78 x 58 x 25 mm and prints flat on its backplate with no supports.
🧩 Part of the NEMA17 Cantilever Pen Plotter (C-frame holding guide pins + SG90) kit.
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