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🔧 Rack & Pinion Jack — Parametric 3D Configurator

Part 202 · Mechanisms · Linear Lifting · Export Each Part Separately

🏗️ Mechanism Studio

Jack Presets

🚗

Car Jack

Vehicle lift · compact

🏭

Industrial Lifter

Heavy duty · tall travel

🔬

Precision Stage

Lab · fine pitch · small

🏗️

Heavy Duty

Construction · wide base

🕰️

Mini / Tabletop

Hobby · fine teeth

⚙️

Arbor Press Style

Press-down · coarse teeth

Components

Frame Rack Gear Pinion Gear Handle Base Plate Load Platform Guide Rails

How it works:
Rotating the handle turns the pinion gear, whose teeth mesh with the vertical rack gear. This converts rotary motion into precise linear motion, lifting or lowering the load platform. The frame and guide rails keep everything aligned under load.

Parts (each downloadable):
🔵 Frame — rigid housing with pinion bore
🟣 Rack Gear — vertical toothed bar
🟡 Pinion Gear — small spur gear on shaft
🟢 Handle / Crank — input lever arm
🔷 Base Plate — foundation platform
⭐ Load Platform — top lifting plate
⚪ Guide Rails — alignment rods

🔧 Rack & Pinion Jack · 3D Animated View

Vertices: 0 | Triangles: 0
Teeth: 12 | Module: 2.0 mm | Travel: 80 mm

Parts — Visibility & Individual Download

Configuration

Pinion Teeth 12

Module (m) 2.0 mm

Rack Length 80 mm

Rack Width 12 mm

Rack Depth 10 mm

Gear Face Width 10 mm

Handle Length 50 mm

Handle Radius 3 mm

Frame Thickness 4 mm

Base Width 50 mm

Base Height 5 mm

Platform Thickness 4 mm

Guide Rail Radius 2 mm

Animation Speed 1.0x

Computed rack & pinion parameters from teeth (z), module (m), and handle length (L).

Pitch Dia (d)

24.0 mm

Outer Dia (da)

28.0 mm

Circular Pitch (p)

6.28 mm

Addendum (ha)

2.0 mm

Dedendum (hf)

2.5 mm

Rack Teeth

Mech. Advantage

4.17

Lift / Rev

75.4 mm

Formulas:
d = m × z (pitch diameter)
d_a = m(z + 2) (addendum diameter)
p = π × m (circular pitch)
h_a = m (addendum), h_f = 1.25m (dedendum)
MA = L / (d/2) (mechanical advantage)
Lift/rev = π × d (rack travel per pinion revolution)

Material Preset

Frame Color

#4a5568

Rack Color

#6688aa

Pinion Color

#cc9944

Handle Color

#44bb77

Roughness 30%

Metalness 80%

Download the entire assembly below, or use the per-part buttons in the parts panel under the viewer.

Full Assembly

Export Scale 1.0x