TUBO 60 cm Drain Snake for Sink and Shower: Hair-Hooking Teeth, Finger-Ring Handle, Prints as a Flat Coil. No Supports

The slow sink and the shower that floods your ankles almost always come down to a ball of hair a few centimeters below the drain. TUBO pulls it out in a couple of minutes, with no chemicals and no plumber. It's a 60 cm toothed strip that prints coiled up on the bed, so it fits a MINI. Uncoil it and push it down the drain, through the trap. Wiggle it, then pull it out: the hair comes with it. Rinse it and it springs back into a coil for the cabinet. If it ever gets too gross, printing a new one costs 9 g of filament. Engineering A strip that bends one way only. The strip is 1 mm thick and 8.8 mm wide. It follows the bends of a sink trap through its thickness, but it won't twist or fold sideways, so it keeps pushing forward. 289 one-way teeth, on both edges: the top edge has 145 sawtooth teeth, with a gentle ramp toward the tip and a vertical face toward the handle; the bottom edge has 144 notches with a 45° ceiling and a vertical wall; the strip slides in smoothly, and pulling it back hooks the hair; the tip is a chisel point with a big barb. Printed as a coil, not a straight line. A 60 cm strip fits in 137 × 103 mm as two turns of an Archimedean spiral, starting at 45 mm radius with 3 mm between turns. Straightening the inner turn strains the PLA by only 1.1%, so the strip springs back into a coil when you let go. Its finger-ring handle sits outside the coil, with at least 1 mm of clearance. Verified in CAD before release: one watertight body; the turns never touch; no overhangs past 45° (the notch ceilings are exactly 45°). Print: about 1 h 15 min and 9 g of PLA on a Prusa MK3S, or 1 h 05 min on a MINI+ (0.20 mm, 15% gyroid). Print flat as oriented, no brim. The strip prints with 2 perimeters, so give the first layer a careful look. Zero stringing between the turns, please. Honest note: TUBO is for hair and soap clogs in bathroom sinks, showers and tubs. It won't clear grease, roots or solid blockages, and doesn't belong in a garbage disposal. Bending it hard backwards around a very tight trap strains it about 3%, so it's fine for a few cleanings. When it gets tired, print another.