Why: I’m building a DIY chicken/duck coop out of 20 mm PVC pipe and needed a strong, affordable T-joint for framing. This connector snaps snugly onto 20 mm pipe and has a flat back for easy print bed adhesion and optional mounting to a flat surface.

Design Notes

Print-in-place design – no assembly required.

True “T” connector for 20 mm PVC pipe.

Not innitially designed for pressurised water flow (frame use only), but if you test it with water and it works, let me know!

Snug fit to keep structures rigid.

Flat back makes it easy to screw or glue to wood, walls, etc.

Printing Specs (my test):

Printer: Creality K1 SE

Material: PLA Rapid+ from Deeplee

Layer height: 0.2 mm

Standard 0.4 mm nozzle

Speed: 500mm/s avg

Minimal supports, no raft or brim required

I successfully printed 10 connectors in one run without issues.

Use Cases:

Perfect for chicken/duck coops, garden frames, lightweight shelving, or any PVC structure needing a 3-way joint.

Feedback Welcome:

Please share pictures of your makes and how you’ve used it!

Need other pipe sizes or connector types? Drop me a message — more connectors will be uploaded soon.

T Connection for PVC pipe 20mm