Brackets and mounts
Articulated Robotic Arm Assembly
- Bounding box
- 160.0 × 300.5 × 306.5 mm
- Engine
- Precision B-rep
- Parameters
- 60
- Published
- October 19, 2026
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The prompt
create a robotic arm1. System Architecture & Overview Type: Multi-axis articulated robotic arm featuring an integrated interactive end-effector/head housing a digital display, optical camera, and proximity sensors. Primary Material & Color: Matte-grade PLA / ABS, Dark Green (Primary Structure), Orange (Secondary Accents and Honeycomb Back Grill). Core Electronics: ESP32 Microcontroller, Single LiPo Battery Pack. 2. Component Integration & Cavity Specifications Display Screen Cavity (Facial Interface) Width: 62.0 mm Height: 36.5 mm Depth Tolerance: 4.5 mm recess with front-bezel lip to secure the digital pixel display. Mounting: Friction fit with internal corner gussets. Camera Module Pocket Width: 26.5 mm Height: 38.2 mm Total Depth: 13.9 mm Lens Aperture: Centered circular cutout with an 8.1 mm diameter clearance for the camera lens. Ultrasonic Sensor Housing Width: 45.0 mm Height: 18.9 mm Placement: Positioned directly below the camera module on the front effector face. Dual 16mm acoustic transducer cutouts spaced at 30mm center-to-center. Internal Electronics Bay (Base / Lower Link) ESP32 Microcontroller Chamber: Enclosed compartment with side-wall cable routing channels and snap-fit standoffs. Battery Compartment: Dedicated slot sized to anchor a single LiPo battery pack securely to prevent shifting during arm movement. Rear Ventilation: The rear structural panel of the housing features a parametric orange-tinted honeycomb pattern grid (hexagonal cell size: 8 mm across flats, 2 mm wall thickness) to display internal wiring and components. 3. Fastener and Mechanical Joint Specifications M3 Mounting Parameters Hole Type: M3 clearance holes (diameter: 3.2 mm) and M3 heat-set insert pockets (outer diameter: 4.6 mm, depth: 5.7 mm). Pitch & Spacing: Structural joints, motor brackets, and housing assembly halves utilize standardized M3 mounting hole patterns configured with a 17.2 mm center-to-center pitch. Fasteners: Flathead and socket head M3 machine screws secured into brass threaded inserts.
Parameters
| Name | Value | Range |
|---|---|---|
| Base Length | 160 mm | 120 – 220 |
| Base Width | 120 mm | 80 – 180 |
| Base Height | 60 mm | 40 – 100 |
| Base Side Wall Thickness | 4 mm | 2 – 8 |
| Base Bottom Wall | 4 mm | 2 – 8 |
| Base Top Wall | 8 mm | 4 – 12 |
| Snap-fit Standoff Diameter | 6 mm | 4 – 10 |
| Snap-fit Standoff Height | 15 mm | 8 – 25 |
| LiPo Slot Recess Depth | 2 mm | 1 – 5 |
| Rear Vent Opening Width | 100 mm | 60 – 140 |
| Rear Vent Opening Height | 40 mm | 20 – 55 |
| Honeycomb Panel Width | 120 mm | 80 – 160 |
| Honeycomb Panel Height | 80 mm | 40 – 100 |
| Honeycomb Panel Thickness | 3 mm | 1.5 – 6 |
| Hex Cell Across Flats | 8 mm | 4 – 16 |
| Honeycomb Wall Thickness | 2 mm | 1 – 4 |
| ESP32 Board Length (X) | 55 mm | 40 – 80 |
| ESP32 Board Width (Y) | 28 mm | 20 – 50 |
| ESP32 Board Thickness (Z) | 1.6 mm | 0.8 – 3 |
| ESP32 Board Y Offset | 10 mm | -20 – 30 |
| LiPo Battery Length (X) | 70 mm | 40 – 100 |
| LiPo Battery Width (Y) | 35 mm | 20 – 60 |
| LiPo Battery Thickness (Z) | 8 mm | 4 – 15 |
| LiPo Battery Y Offset | -15 mm | -40 – 0 |
| M3 Clearance Hole Dia | 3.2 mm | 2.8 – 4 |
| Heat-set Insert OD | 4.6 mm | 4 – 5.5 |
| Heat-set Insert Depth | 5.7 mm | 4 – 8 |
| M3 Mounting Pitch | 17.2 mm | 12 – 25 |
| Shoulder Bracket Length (X) | 50 mm | 30 – 80 |
| Shoulder Bracket Width (Y) | 40 mm | 25 – 70 |
| Shoulder Bracket Height (Z) | 20 mm | 10 – 35 |
| Lower Arm Link Length (Z) | 180 mm | 120 – 300 |
| Lower Arm Width (X) | 35 mm | 20 – 60 |
| Lower Arm Depth (Y) | 30 mm | 15 – 50 |
| Elbow Bracket Length (X) | 45 mm | 25 – 70 |
| Elbow Bracket Width (Y) | 35 mm | 20 – 60 |
| Elbow Bracket Height (Z) | 18 mm | 10 – 30 |
| Upper Arm Link Length (Y) | 150 mm | 80 – 250 |
| Upper Arm Width (X) | 30 mm | 15 – 50 |
| Upper Arm Depth (Z) | 25 mm | 10 – 45 |
| Head Housing Length (X) | 110 mm | 70 – 160 |
| Head Housing Depth (Y) | 70 mm | 40 – 110 |
| Head Housing Height (Z) | 80 mm | 50 – 120 |
| Display Recess Depth | 4.5 mm | 2 – 8 |
| Display Bezel Lip Inset | 0.5 mm | 0 – 2 |
| Camera Pocket Depth | 13.9 mm | 8 – 20 |
| Camera Lens Aperture Dia | 8.1 mm | 4 – 12 |
| Ultrasonic Housing Depth | 5 mm | 3 – 10 |
| Ultrasonic Front Inset | 3 mm | 1 – 6 |
| Ultrasonic Transducer Cutout Dia | 16 mm | 8 – 24 |
| Ultrasonic Transducer Spacing | 30 mm | 15 – 50 |
| Display Module Width | 62 mm | 40 – 90 |
| Display Module Height | 36.5 mm | 20 – 60 |
| Display Module Depth | 4.5 mm | 1.5 – 10 |
| Camera Module Width | 26.5 mm | 15 – 50 |
| Camera Module Height | 38.2 mm | 20 – 60 |
| Camera Module Depth | 13.9 mm | 8 – 20 |
| Ultrasonic Module Width | 45 mm | 25 – 70 |
| Ultrasonic Module Height | 18.9 mm | 10 – 40 |
| Ultrasonic Module Depth | 5 mm | 3 – 10 |
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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