Heads up: many models on this page are AI-generated or uploaded untested. They may be misconfigured for the intended application — check the dimensions and tolerances, and verify or edit the model before printing or relying on it.*
Print-In-Place Thumb Roller Tube Clamp
This is a print-in-place roller clamp, like the ones on IV lines, for soft vinyl or silicone tubing from 4 to 10 mm OD. It works on aquarium, drip-irrigation and homebrew siphon lines. A 20 mm knurled thumb wheel rides on 5 mm axle stubs in grooves cut into the side walls of a 60 x 22 x 34 mm body. Rolling it along a 13° sloped roof narrows the gap from 10.5 mm (fully open) to 0.8 mm (pinched shut), so it throttles flow smoothly anywhere along that range.
Brake Line Roller Straightener Block
A five-roller straightening block for 3/16 in (4.76 mm) brake, fuel and copper-nickel line: three 624 bearings on the lower row and two offset above squeeze the tube to a 4.2 mm nip (0.56 mm set) so coiled line pulls through dead straight. 110 x 44 x 18 mm body with V-groove entry and exit guides, 3.4 mm self-tapping holes for M4x16 socket-head screws (the 7 mm head clamps only the bearing's inner race), and four 5.5 mm M5 holes to bolt it to the bench — or grip the 9 mm plate edges in a vise.
Flagged: hydraulic brake system. Not for safety-critical use without independent engineering review.