Rack

Component kind rack (category mech, DSL name rack, API v1)

Straight toothed bar. Engages a spur gear (the pinion) via mech.rackPinion; the pair converts rotation into linear translation along the rack local X axis.

Parameters

• `module` — Tooth module (mm). Must match the pinion module for the teeth to mesh.
• `length` — Length along the local X axis (mm). The travel range.
• `width` — Face width along the local Z axis (mm).
• `height` — Back thickness along the local Y axis (mm).
• `pressureAngle` — Tooth pressure angle (deg). Standard is 20°.

Parameters schema

Ports

Kinematics

Rack-pinion rule: velocity_rack = -omega_pinion × pinion.pitchRadius. Sign flips so a counter-clockwise pinion pushes the rack in the +X direction of its local frame by convention.

Example

rack "R1" {
  module: 2
  length: 300
}

engine apiVersion · 1