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View Full Version : BT-55 Coupler E-bay


Jack Hydrazine
06-25-2022, 04:22 PM
This project is a tubing coupler that is designed to hold ejection electronics for your rocket that fits Estes BT-55 tubing.

There are two models 1) coupler, 2) end cap.

The end cap has a hole in the center that is 3.5mm in diameter.

There are two lengths of couplers 1) 60mm (2.36 inches), 2) 120mm (4.72 inches)
https://www.thingiverse.com/thing:5419314