Gears and transmission
Robot Arm Base - Circular Hollow Base with Rotating Platform
- Bounding box
- 140.1 × 140.0 × 41.1 mm
- Engine
- Precision B-rep
- Parameters
- 21
- Published
- September 27, 2026
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The prompt
Create a 3D-printable circular base for a small KUKA-inspired robotic arm. The base should be approximately 140 mm in diameter and 35 mm high. The base must be hollow and have enough internal space for: * one ESP32 Super Mini board * one Arduino Nano clone * two 18650 batteries * wiring and small electronic components The electronics should be mounted inside the base, with the batteries positioned side by side. The top of the base must have a central rotating platform for the robotic arm. The rotating platform will eventually be driven by a small stepper motor from a 360-degree security camera, using a custom reduction gearbox. Include mounting points for the stepper motor and gearbox, but do not create the gearbox yet. The design should be modular and suitable for FDM 3D printing. Use rounded edges and a clean industrial robotic-arm appearance. Design the base as a separate CAD body that can later be exported as STL and STEP.
Parameters
| Name | Value | Range |
|---|---|---|
| Base Diameter | 140 mm | 80 – 220 |
| Base Height | 35 mm | 15 – 80 |
| Wall Thickness | 5 mm | 2 – 12 |
| Roof Thickness | 6 mm | 3 – 15 |
| Base Edge Fillet | 2.5 mm | 0 – 5 |
| Cable Grommet Hole | 12 mm | 2 – 25 |
| Grommet Height | 15 mm | 4 – 30 |
| Platform Diameter | 90 mm | 30 – 140 |
| Platform Height | 6 mm | 1 – 25 |
| Platform Seat Recess Dia | 50 mm | 10 – 120 |
| Platform Seat Depth | 2 mm | 0.5 – 6 |
| Platform Edge Fillet | 2 mm | 0 – 5 |
| Central Bore Dia | 16 mm | 4 – 40 |
| Stepper Hole Spacing | 22 mm | 6 – 45 |
| Stepper Hole Dia | 3.2 mm | 2 – 6 |
| Gearbox Bolt Circle | 80 mm | 20 – 120 |
| Gearbox Hole Dia | 3.2 mm | 2 – 6 |
| Standoff Dia | 10 mm | 4 – 20 |
| Standoff Height | 8 mm | 2 – 25 |
| Standoff Pilot Hole Dia | 3 mm | 1.5 – 6 |
| Standoff Pilot Depth | 4 mm | 1 – 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.
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