Gears and transmission
Rack & Pinion Hammer – Exploded Assembly
- Bounding box
- 1385.0 × 240.0 × 327.5 mm
- Engine
- Precision B-rep
- Parameters
- 27
- Published
- November 2, 2026
Download
Free to download and use. See the terms.
The prompt
Recreate the attached mechanism exactly as shown. Do not redesign or simplify it. Create a parametric 3D CAD assembly of a vertical rack-and-pinion hammer mechanism. Include: - Vertical cylindrical guide column - Sliding hammer collar at the bottom - Vertical gear rack fixed to the sliding collar - Spur pinion gear on a horizontal splined shaft - Bearing housing - Rear mounting plate - Cylindrical base (anvil) The pinion rotates to move the rack vertically. The sliding collar acts as a striker and impacts the base. Maintain the same layout, proportions, and part positions as the reference image. Output: STEP (.stp) assembly with separate parts, suitable for MSC Adams.
Parameters
| Name | Value | Range |
|---|---|---|
| Layout Gap | 200 mm | 50 – 500 |
| Base Diameter | 60 mm | 20 – 200 |
| Base Height | 30 mm | 10 – 100 |
| Column Diameter | 20 mm | 10 – 60 |
| Column Height | 200 mm | 50 – 500 |
| Collar Sleeve Height | 40 mm | 10 – 100 |
| Collar Outer Diameter | 50 mm | 20 – 100 |
| Collar Inner Diameter | 20.5 mm | 10 – 50 |
| Striker Diameter | 60 mm | 20 – 120 |
| Striker Height | 5 mm | 2 – 20 |
| Rack Length | 100 mm | 20 – 300 |
| Rack Width (Y) | 10 mm | 5 – 30 |
| Rack Depth (X) | 10 mm | 5 – 30 |
| Pinion Module | 2 mm | 0.5 – 5 |
| Pinion Teeth | 20 | 10 – 40 |
| Pinion Width | 10 mm | 5 – 30 |
| Pinion Bore | 10 mm | 4 – 20 |
| Shaft Diameter | 10 mm | 4 – 30 |
| Shaft Length | 120 mm | 50 – 300 |
| Housing Width | 40 mm | 20 – 100 |
| Housing Height | 40 mm | 20 – 100 |
| Housing Thickness | 20 mm | 5 – 50 |
| Housing Bore | 10 mm | 4 – 20 |
| Plate Width | 100 mm | 50 – 300 |
| Plate Height | 100 mm | 50 – 300 |
| Plate Thickness | 10 mm | 2 – 30 |
| Mounting Hole Dia | 6 mm | 2 – 12 |
Every value above is a live dimension. Open a model like this in the editor and each one becomes a slider you can drag before exporting.
More models
Browse the full gallery →Spur Gearbox
design gearbox
Involute Spur Gear with Keyway
Precision Involute Spur Gear with Hub and Keyway: Module (m) of 2.0 mm, 40 teeth (z), Pitch Circle Diameter (d) of 80.00 mm, 20° pressure angle (\alpha), 15.00 mm face width (b), a
Parametric Helical Gear
Create a parametric helical gear with the following specifications: 32 teeth, normal module of 3 mm, right-hand helix, total face width of 80 mm, and a central bore hole with a dia
Rod with Spur Gear
Metal rod diameter is 20 mm and length is 100 mm and right side attach a gear and their OD is 50 mm
Spur Gear (12 Teeth)
Built a gear with 12 teeth
Two-Stage Spur Gear Reduction Assembly
Design a 2-stage spur gear reduction set for 3D printing with an overall 10:1 ratio. Stage 1: A 12-tooth pinion driving a 36-tooth gear (3:1). Stage 2: A 12-tooth pinion coupled