Centering F-Clamp Cap for Pipe Welding

Design preview. Rendered from the file, not a photo.

The maker says it fits: F-Clamp. See the proof

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What it does

Clamps and centers pipes for accurate welding
Inspired by Igor Welder pipe-fixing lifehack
Brings real pro-grade welding setup to DIY shops
Saves time on pipe alignment work

Center your pipes for clean welds. This centering F-clamp cap holds two pipes in alignment for welding, so the joint comes together tight instead of uneven. Inspired by the Igor Welder pipe-fixing lifehack from YouTube, this is the printable version of a real shop technique.

Use it for pipe welding, conduit work, and any tube-joining project that needs perfect alignment. Print in tough filament for daily reliability. The kind of small jig that quietly improves every welding job.

Built for welders, pipe fitters, and serious DIYers. The kind of small accessory that earns its place in any pipe shop.

2.1k downloads in the maker community. That is interest in the design on the site it came from, not our sales.

What it fits

The maker says it fits: F-Clamp

That is the maker's word, not a fit we measured. Check the size below against your own.

F-ClampFrom the maker's own listing title, checked 2026-08-13. See the original post

Brand names here only say what this part fits. We are not connected to those companies, and they did not make or check this part.

What you get

This design prints as one piece.
Nothing else to print or buy for this to work.

What it is made of

Designs like this print well in PLA. Compare the materials.

Printed plastic is strong for its size, but it is not metal. We have not load tested this design, so we do not publish a weight rating. Keep it out of a hot car and away from open flame.