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A cradle chassis for building a 3S (or 3P) 18650 pack: three 18.9 mm teardrop bores on 21.5 mm centres hold the cells in two 8 mm end collars plus a mid saddle, leaving both terminals flush with the outer faces at exactly 65 mm so nickel strip can be welded straight across. 82 x 68 x 34 mm, with raised + / − polarity ribs above each bore alternating for series wiring, four 3.4 mm M3 clearance holes to bolt the pack into a project, and four 12 x 5 mm zip-tie slots through the 3.5 mm base.
A four-link cable drag chain with an integrated M3 mounting foot, printed fully assembled — no pins, no clips, no post-assembly. Each 32 mm link carries an 11 mm wide x 13 mm tall cable channel and an arc-slot bend limiter that stops the chain dead straight and allows 35 deg of bend, so the top run won't sag. Overall 170 x 29 x 16 mm; the foot takes two M3 screws on a 19 mm spacing.
A 62 mm square, 19 mm tall adapter that lets a NEMA 17 stepper bolt into a machine face drilled for NEMA 23 — the base carries the 47.14 mm M5 pattern, the raised Ø52 tower carries the 31 mm M3 pattern with a 22.4 mm pilot register for the motor's centring boss. The hollow Ø30 core clears a shaft coupler, a 14 mm side window gives Allen-key access to the coupler set screw, and counterbores in the base bottom fully recess the four M3x20 motor screws so the adapter still seats flat.
A 44 mm square block with four through-bores (18.7 mm, on 20.6 mm centres) that holds four 18650 cells upright, parallel and bottom-flush against the bench so nickel strip lands square during spot-welding or pack glue-up. Open-topped grab notches — one per cell, in 4-fold symmetry — let you spin a cell to set polarity, and two 5 mm ears with M3 clearance holes bolt the jig to the bench; overall 68 x 44 x 26 mm.
A curved clip that wedges onto the rim of a 1-gallon paint can, giving you a clean edge to wipe your brush on and a slot to park it over the paint instead of on the rim. Spans a 50° arc of the can, about 74 mm wide.
A desk dock with a recessed tray sized for a standard 76 x 76 mm sticky note pad and a rounded rear trough for pens, pencils and erasers. A scalloped thumb notch in the front wall lets you peel notes one-handed; footprint is 86 x 113 mm and 20 mm tall.
A 100 mm lazy-susan tray that prints as one piece and spins straight off the plate — the deck is captured by a mushroom post and rides on low-friction ring lands. Holds spice jars, sauces, pens or craft supplies in a 90 mm bowl with a 10 mm rim and eight grip ribs.
A 60 mm one-piece carabiner whose gate is a built-in flexing spring arm — press it inward to hook on, and a capture nose stops it opening under load. Prints flat with no supports, no assembly, and no metal spring; sized for keys, water bottles, and bag straps.
A screw-on wall gripper whose springy C-jaws snap over a 20–26 mm broom, mop, rake or squeegee handle so it hangs off the floor. 60 mm back plate with two counterbored screw holes; 18 mm tall jaws with a 19 mm snap mouth.
A two-compartment caddy that sits beside the faucet to hold a sponge and scrub brush separately, with slotted drain holes in the bottom so water runs out instead of pooling. Fits a standard sponge; overall footprint 100 x 70 x 45 mm.