Prototype and Cam Mechanism

A project log for Spacecraft Abort Handle

A 3D-printed abort handle based on the CST-100 cockpit and suitable for KSP

tobiasTobias 08/08/2023 at 06:400 Comments

Here's a gif showing how the mechanism operates - essentially as the handle is turned the bearings run along a cam surface. The bearings are on a lever tensioned by the extension spring. The cam surface is designed so that the deflection of the lever is linear with the rotation of the handle - and so the resistance is linear. This also means that the handle rotates in both directions, and snaps back smoothly to the centre