Brackets and mounts
SCARA Robot Arm 2-DOF
- Bounding box
- 269.7 × 132.9 × 155 mm
- Engine
- 3D Printing B-rep
- Parameters
- 17
- Published
- November 13, 2026
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The prompt
A complete 2-DOF SCARA robotic arm assembly designed for 3D printing. The structure consists of three main components. First, a sturdy stationary base with a mounting bracket for a NEMA 17 stepper motor. Second, a primary horizontal arm (Link 1) that connects to the base motor; the opposite end of this arm houses a mount for a second NEMA 17 stepper motor acting as the elbow joint. Third, a secondary horizontal arm (Link 2) that connects to the elbow motor. The tip of the secondary arm must NOT have a Z-axis mechanism, vertical actuator, or pen holder; it must end in a simple, flat, solid rectangular mounting platform (roughly 20mm by 15mm) to attach a small sensor. The design should be geometric, structural, and avoid complex overhangs.
Parameters
| Name | Value | Range |
|---|---|---|
| Foot plate size | 80 mm | 50 – 140 |
| Overall base height | 40 mm | 24 – 80 |
| Column width | 52 mm | 30 – 90 |
| NEMA 17 body width | 42 mm | 30 – 60 |
| NEMA 17 body height | 40 mm | 30 – 60 |
| Motor shaft diameter | 5 mm | 3 – 8 |
| Exposed shaft length | 12 mm | 4 – 30 |
| Shoulder to elbow axis distance | 150 mm | 80 – 250 |
| Link 1 width | 30 mm | 16 – 60 |
| Link 1 thickness | 25 mm | 8 – 40 |
| Elbow axis to tip distance | 115 mm | 60 – 220 |
| Link 2 width | 28 mm | 16 – 50 |
| Link 2 thickness | 20 mm | 8 – 40 |
| Platform length | 20 mm | 10 – 60 |
| Platform width | 15 mm | 8 – 50 |
| Platform thickness | 6 mm | 2 – 15 |
| Elbow bend angle | 50 deg | 0 – 180 |
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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