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Replacement bottom guide for a bypass/sliding shower door: a 46 x 22 x 15 mm block that screws to the track with two countersunk M3 (#6) screws and carries the door's bottom glass edge in a 7.2 mm channel sized for 1/4 in (6.35 mm) glass. A V-shaped lead-in opens the channel to 12.7 mm at the rim so 5/16 in and 3/8 in glass still ride about 5 mm deep, and flared ends in plan view guide a drifting door back in; the counterbored screw holes also drain the channel.
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.
Replacement wall-end bracket for a broken towel bar, with a stepped socket that takes both 1 in (25.4 mm) and 3/4 in (19 mm) tube — a 1 in bar bottoms on the step after 18 mm, a 3/4 in bar slides 28 mm deep — and an M4 set screw that locks it so you don't have to replace the whole rail set. Back plate is 42 x 68 x 6 mm with two counterbored 4.5 mm holes 52 mm apart for #8/M4 anchors, bar centre stands 38 mm off the wall, overall 55 mm tall.
A 120 mm replacement flush lever arm for a toilet tank, for when the brittle OEM arm snaps at the chain hole and the linkage isn't sold separately. Instead of guessing your handle's tab shape, a 14 mm deep forked jaw slides over the handle blade (1.5–3.6 mm thick) and pinches it with an M3×20 screw and a captured M3 nut; five 4 mm chain holes on a 12 mm pitch set the flapper chain length. Arm cross-section is 5 × 12 mm so the bending load runs along the print's strong axis.
A bolt-clamped replacement slider/holder for a 25 mm shower riser bar, for when the molded plastic holder cracks and the maker only sells the whole $60 rail. A 38 mm split ring with 6.3 mm walls grips the bar via two M5x30 bolts with captured nut pockets, and a 10°-tilted tapered cradle (26.4 mm top, 22.8 mm bottom, open through the bottom so it drains) holds the hand shower. Overall 90 x 39 x 32 mm.
A clamp-on double hook that saddles the top edge of a frameless glass shower door — towel hook on the outside, loofah/razor hook on the inside, no drilling, adhesive or suction cup. The 13.6 mm slot with a raised grip pad takes 6–13 mm (1/4"–1/2") tempered glass, and an M4 heat-set insert (5.5 mm bore) plus an M4x16 screw locks it down; 76 x 43 x 26 mm.
A four-bay bench or wall caddy that stands RC LiPo packs upright, each bay 34 x 28 mm (fits packs up to about 33 x 27 mm in cross-section — the usual 2S/3S 1300–2600 mAh class) with a dedicated 10 mm rear channel per bay so the balance lead drops over a 36 mm divider wall and its plug hangs isolated from the neighbouring pack's main leads. Overall 148 x 47 x 52 mm, with a push-up window under each bay and two M4 clearance holes (4.5 mm) through the 4 mm back wall for wall mounting.
A stackable closet-flange riser for when new tile or vinyl leaves the toilet flange below the finished floor and the wax ring won't seal. 164 mm OD ring with a 110 mm bore that clears a 4" DWV throat, obround bolt slots on the 139.7 mm (5.5") closet-bolt standard, four 4.5 mm screw holes for #8 anchors, and a 1.5 mm tongue/2.0 mm groove so rings interlock and stack in 6.4 mm (1/4") steps. Print in PETG or ABS at high infill and stack as many as the gap needs.
A split collar that clamps onto a standard 1/2" NPT shower arm (21.3 mm OD pipe) with one M4 screw into a heat-set insert, carrying two 30 mm upturned J-hooks for a loofah, razor strap or bottle handle — no suction cups, no drilling tile. Collar bore is 21.8 mm, ring wall 3.5 mm, overall 60 x 38 x 18 mm; slide it on with the shower head removed, then pinch the 3 mm gap closed to lock it.
A 140 x 95 mm riser shelf that slides in around a bathroom sink drain so the dead space beside the P-trap becomes usable storage — the 52 mm wide U-slot (26 mm end radius) clears common 1-1/4 in and 1-1/2 in tubular tailpieces and their slip nuts. Four hollow 18 mm legs give 45 mm of clearance over the cabinet floor, 7 mm drain slots let a drip pass straight through instead of pooling under your bottles, and each foot has a 4.5 mm M4 clearance hole if you want to screw it down.
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 screw-mounted holster that holds a hair dryer by its barrel in a 64 mm ring so the handle and cord hang clear of the counter. Plate is 62 x 62 mm with two 4.6 mm screw holes on 40 mm centers; the ring stands off the wall 36 mm.
A hollow, rib-cored riser that lifts a bed, couch, desk or dresser leg 44 mm for extra under-furniture storage. The chamfered 58 mm socket accepts square or round legs, and a poke-out hole in the floor frees a stuck leg — order four for one piece of furniture.
A countertop vanity dispenser: a 61 mm tube that stacks standard cotton rounds with a full-height front slot so you can see the level and pull one out with a thumb, plus an attached 28 mm cup for cotton swabs. Footprint 98 x 66 mm, 82 mm tall.
A 100 mm wide wall rack that hangs four toothbrushes head-up in open keyhole slots so they drain and air-dry instead of sitting in a wet cup. Slots take handles from the top edge, and four screw holes mount it to drywall or tile.
A 100 x 72 mm bar-soap dish with a 3 mm sloped floor, five lengthwise ribs that keep the bar up out of the water, and a spout notch with a flat drip tongue that sends runoff into the sink instead of onto the counter.
A gravity-fed dual-channel dispenser that stacks 6 AA and 8 AAA cells and drops the next one into a front grab window with a retaining lip. Stands 92 mm tall on a shelf or screws to a wall through the two rear ears.
A winding key that grips the flat tail of a toothpaste or ointment tube in a 3.2 mm slot; twist the finger-hole knobs to roll the tube up and push every last bit out. 96 mm long with a Ø7 mm hang hole in one knob.