Crimson Racing Wiki

Brake Pedal Face Insert

Subteam: ChassisSubsystem: PedalsAssembly: PedalsCars: CR25, CR26I

Purpose

Provides the hard mounting point where the pedal face attaches to the arm.

Function

Carries the fastener load into the sandwich panel rather than crushing the core.

Design Process

No part-specific design process is documented. The Pedals subsystem design process applies: 1. Take brake and throttle pedal position ranges from the ergonomics study (brake optimum 38.22 in, throttle optimum 38.48 in; CR26I sits at 38.7 in and 38.5 in). 2. Select the pedal ratio from the master cylinder sizing and the required pedal force, then set the geometry that achieves it. 3. Analyse the arm. CR26I brake arm: 225 lbf applied, fixed at the hinge, minimum FoS 1.23, with a mesh convergence study. 4. Waterjet the arms, lay up the faces, assemble on the rail. 5. Validate pedal force and travel against the brake calculation on the car.

Manufacturing Process

Machined, then bonded or welded into the parent part.

Full Material List

Aluminium insert.

Reoccuring issues

Fault Vault, 2026-05-15, CR26I: the brake pedal face began separating from the arms as the 9460 adhesive failed. More structural adhesive was added and the bond monitored at competition.

Still to document

Nothing in CrimsonStorage covers these yet.