Engineering insights and practical 3D printing advice from the Print a Part team. Covering FDM design, materials, new capabilities, and project stories from Christchurch, New Zealand.
By Caeli Grigsby · 14/04/2026
A customer came to us with a broken idler pulley from a retro mountain bike. The original part was no longer in production, and finding a replacement meant digging through second-hand spares with no guarantee it would fit or last. We reverse engineered the damaged pulley, focusing on the details that matter: bearing fit, chain alignment, and overall geometry. The goal was to create a replacement t…
By Caeli Grigsby · 9/10/2025
Designed for a custom rocker cover setup, the part keeps the throttle cable fixed and aligned for consistent actuation. The geometry is simple but critical. Secure clamping, accurate positioning, and repeatable fitment. Printed in polycarbonate (PC) for: Heat resistance in engine bay conditions High strength and impact resistance Dimensional stability under load Production This was a batch run,…