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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.
A tapered split collar that drops into an oversized patio-table umbrella hole and wedges the pole tight so it stops rattling and leaning. Suits ~38 mm poles in 44–52 mm table holes; 68 mm flange rests on the tabletop.
A 90 mm V-jaw layout plate that drops over the end of any round bar, dowel or pipe from about 9 to 70 mm diameter; scribe through the long centre slot, rotate the stock 90° and scribe again — the crossing point is dead centre. The 8 mm deep V lips self-centre the tool so it can't rock off the end face.