Barbed End Plug for 1-Inch PEX
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Description
A barbed end plug that dead-ends a 1-inch PEX line. Three tapered barbs rise from a solid 28 mm collar cap, stacked directly on one another so each ring sits flush against the next with no gaps, and they taper from 21 mm to a 22 mm maximum diameter to suit pipe with roughly a 22 mm inner diameter. The collar is a 28 mm cylinder, 3 mm thick, with a 1 mm chamfer on the bottom outer edge, and it is the cap as well as the pipe stop — only about 3 mm of it shows past the barbs, so the stop is shallow. There is no bore: the plug is solid through, about 33 mm tall, sits flat on the plate, and prints as one piece as a 28 × 28 × 33 mm body. Because it seals rather than joins, check the barb fit against your actual pipe before committing to a full run.
Remix hooks
- Barb profile: three tapered barbs stacked flush as one sawtooth suit roughly 22 mm inner diameter pipe. Change the count or soften the taper for harder or softer tubing, but keep the spacing equal to the barb height so the gaps between rings do not come back.
- Collar: 28 mm across and 3 mm thick, it is only just wider than the barbs. Widen or thicken it for a firmer insertion stop; the bottom outer edge carries a 1 mm chamfer, which can be enlarged or removed to change entry feel.
- Height: 33 mm overall is a compact cap; stretch the straight run above the barbs if you need more insertion room or a deeper seat.
- Barb diameter: 21–22 mm is the number to change first for other pipe sizes. The collar and barb spacing can stay put while only the taper moves.
- Ends: the solid cap is the safe baseline. Extending the same barbed profile out the other side turns it back into a straight coupling, and an elbow or tee is a body swap rather than a barb redesign.
- Fit check: barb dimensions are nominal, so test against your actual pipe before printing a full run.
- Pairs with: 1-inch PEX runs that need a temporary or permanent dead end, pressure testing, and capping a line before fixtures go on.
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