Crimson Racing Wiki

Steering Column Mount

Subteam: ChassisSubsystem: SteeringAssembly: Chassis SystemCars: CR22, CR25, CR26I

Purpose

Mounts the steering column bearing housing to the frame.

Function

Locates the column, which together with the rack mounts sets the column angle the driver experiences.

Design Process

No part-specific design process is documented. The Steering subsystem design process applies: 1. Kinematics sets steering geometry, Ackermann targets and rack travel. 2. Size the column and shafts for torsional stiffness and for the bearing housing that supports them. 3. Calculate static steering force from the tire and geometry, and check it against anthropometric limits. 4. Design the wheel shell around the button and switch layout and the dash sightline; prototype grips and take driver feedback. 5. Validate steering effort and Ackermann on track, using the alternate tie rod mounts to sweep setups.

Manufacturing Process

Milled on the CNC.

Full Material List

Aluminium or steel bracket.

Reoccuring issues

None recorded. This part has no entry in Knowledge_Transfer/Issue Logging/Fault Vault.xlsx, in either Issue Log.xlsx, in CR22/Issue Tracking/Shakedown 7-15-23.xlsx, or in any design review issue list found in CrimsonStorage or Box.

Properties

Dimensions called out on the cost report drawings. These are the figures printed on the drawing, not a labelled specification; open the drawing itself for what each one refers to. Steering Column Mount (mm): 74.7, 15.9 60.3 Source: Cost report drawings: CR26i/Document Submissions/Cost Report/Frame & Body/Chassis System/Steering Column Mount.pdf Quantity per car, as costed: 1

Still to document

Nothing in CrimsonStorage covers these yet.