Layup of a Practice Carbon Composite Pivot Tube

Carbon uni, tow, and weave pre-cut ready for layup.
Carbon uni, tow, and weave pre-cut ready for layup.

14mm precision ground steel rod with 3D printed end caps set to +1". Rod and caps were waxed.
14mm precision ground steel rod with 3D printed end caps

Wrapped, then compressed with polyester elastic banding.
Wrapped, then compressed with polyester elastic banding.

Layup remnants

Excess resin dripping to floor.
Excess resin dripping to floor.

Practice composite pivot tube after cure.
Practice composite pivot tube after cure.

Removing caps.

Tube slid off rod with moderate force.
Tube slid off rod with moderate force.

Tube cut to length and end sanded flat.
Tube cut to length and end sanded flat.

Test fit of pivot bushing from bike frame.
Test fit of pivot bushing from bike frame.

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