Fittings and adapters
Klann Linkage Leg - Multi-Part Exploded
- Bounding box
- 1108.0 × 120.0 × 33.0 mm
- Engine
- Precision B-rep
- Parameters
- 53
- Published
- August 7, 2026
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The prompt
Create a Klann linkage leg mechanism for a spider robot consisting of crank, rocker, coupler, upper link, lower link, and foot. The mechanism should be optimized for a 350 mm long hybrid spider robot. Use 8 mm shafts with ball bearings, M4 bolt connections, and 6 mm thick PLA links. The leg should provide approximately 80 mm ground clearance and smooth walking motion from a single rotary input. Design every part separately with realistic holes, spacers, and bearing seats suitable for 3D printing.
Parameters
| Name | Value | Range |
|---|---|---|
| Layout Gap | 120 mm | 20 – 500 |
| Crank OD | 40 mm | 10 – 100 |
| Crank Thickness | 6 mm | 1 – 20 |
| Crank Pin Offset | 15 mm | 1 – 30 |
| Crank Bore (Shaft) | 8.2 mm | 3 – 20 |
| Crank Bearing Seat OD | 16 mm | 10 – 30 |
| Crank Bearing Seat Depth | 5 mm | 1 – 15 |
| Crank Set Screw Hole Diameter | 4.5 mm | 2 – 10 |
| Rocker Side A–B | 55 mm | 10 – 200 |
| Rocker Side B–C | 45 mm | 10 – 200 |
| Rocker Side C–A | 30 mm | 10 – 200 |
| Rocker Thickness | 6 mm | 1 – 20 |
| Rocker Body Offset (Width) | 6 mm | 1 – 30 |
| Bearing Seat OD | 16 mm | 10 – 30 |
| Bearing Seat Depth | 5 mm | 1 – 15 |
| Shaft Clearance Hole Dia. | 8.2 mm | 5 – 20 |
| Rocker M4 Clearance Dia. | 4.5 mm | 2 – 10 |
| Rocker M4 Hole Inset | 8 mm | 2 – 30 |
| Coupler Pivot Distance | 70 mm | 20 – 200 |
| Coupler Width | 14 mm | 2 – 40 |
| Coupler Thickness | 6 mm | 1 – 20 |
| Coupler M4 Clearance Dia. | 4.5 mm | 2 – 10 |
| Coupler M4 Hole Inset | 8 mm | 1 – 30 |
| Upper Link Pivot Distance | 80 mm | 20 – 200 |
| Upper Link Width | 12 mm | 2 – 40 |
| Upper Link Thickness | 6 mm | 1 – 20 |
| Lower Link Length (Pivot->Foot) | 120 mm | 30 – 300 |
| Lower Link Width | 14 mm | 2 – 40 |
| Lower Link Thickness | 6 mm | 1 – 20 |
| Foot Bolt Spacing | 30 mm | 5 – 60 |
| Foot Bolt From Bottom Edge | 10 mm | 2 – 30 |
| Foot Bolt Clearance Dia. | 4.5 mm | 2 – 10 |
| Foot Pad Length | 55 mm | 10 – 150 |
| Foot Pad Width | 25 mm | 10 – 80 |
| Foot Thickness | 6 mm | 1 – 20 |
| Foot Toe Radius | 12.5 mm | 2 – 40 |
| Foot Bolt Clear. Dia. | 4.5 mm | 2 – 10 |
| Foot Bolt From Rear Edge | 10 mm | 2 – 50 |
| Bracket Length | 80 mm | 30 – 200 |
| Bracket Width | 50 mm | 20 – 150 |
| Bracket Thickness | 6 mm | 1 – 20 |
| Bracket Pivot Spacing | 45 mm | 10 – 150 |
| Bracket Mount Hole Dia. | 4.5 mm | 2 – 10 |
| Mount Hole Inset | 8 mm | 2 – 30 |
| Spacer Inner Dia. | 8 mm | 3 – 20 |
| Spacer Outer Dia. | 12 mm | 5 – 30 |
| Spacer Length | 4 mm | 0.5 – 20 |
| Shaft Diameter | 8 mm | 3 – 20 |
| Shaft Length | 30 mm | 5 – 100 |
| Shaft Chamfer | 0.5 mm | 0 – 3 |
| Bearing Bore | 8 mm | 3 – 20 |
| Bearing OD | 16 mm | 6 – 40 |
| Bearing Width | 5 mm | 1 – 15 |
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.
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