Mechanical parts
Two-Joint Robotic Arm with Parallel Gripper
- Bounding box
- 300.0 × 80.0 × 85.0 mm
- Engine
- Precision B-rep
- Parameters
- 20
- Published
- August 27, 2026
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The prompt
i want a 2 joint robotic arm with parallel gripper simple design. Servo-Base: smart/serial-bus servo, true 360° positional control. Turret rides on a bearing so the servo only drives rotation, not structural load. Wiring: now bridged via the new interface board (§2/§8), confirmed. Servo-Arm Joint: shoulder pivot, dual-side support for rigidity under load. Gripper: parallel jaws, single servo, jaw range ~20–90mm. Counterweight: deferred to Stage 6/8 CG calculation.
Parameters
| Name | Value | Range |
|---|---|---|
| Base Diameter | 80 mm | 40 – 150 |
| Base Height | 20 mm | 10 – 50 |
| Turret Diameter | 60 mm | 30 – 120 |
| Turret Height | 15 mm | 5 – 30 |
| Shoulder Height | 40 mm | 20 – 80 |
| Upper Arm Length | 120 mm | 60 – 200 |
| Upper Arm Width | 20 mm | 10 – 40 |
| Upper Arm Thickness | 8 mm | 4 – 20 |
| Forearm Length | 100 mm | 50 – 180 |
| Forearm Width | 18 mm | 10 – 40 |
| Forearm Thickness | 8 mm | 4 – 20 |
| Gripper Body Length | 40 mm | 20 – 80 |
| Gripper Body Width | 30 mm | 15 – 60 |
| Gripper Body Height | 20 mm | 10 – 40 |
| Jaw Length | 30 mm | 15 – 60 |
| Jaw Width | 10 mm | 5 – 20 |
| Jaw Height | 10 mm | 5 – 20 |
| Jaw Gap (open) | 50 mm | 20 – 90 |
| Servo Mount Diameter | 20 mm | 10 – 40 |
| Servo Mount Height | 10 mm | 5 – 20 |
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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