Brackets and mounts
Ball Dispenser Hopper Assembly
- Bounding box
- 440.0 × 627.0 × 150.0 mm
- Engine
- Precision B-rep
- Parameters
- 41
- Published
- September 24, 2026
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The prompt
Frame / Housing Part Dimension Notes Overall frame 300 × 450 × 150mm (W×H×D) Aluminium extrusion or plywood Mounting bolts M4, x4 One at each frame corner Base plate 300 × 150mm footprint Match frame width/depth Storage Hopper Part Dimension Notes Tube 55mm ID, 220mm length PVC or clear acrylic Wall thickness ~3mm Standard PVC pipe wall Lid/cap 60mm OD, 10mm tall Removable, friction or threaded fit Ball capacity ~5 balls Based on 40mm ball stacking Squash ball reference Ø40mm For clearance checks throughout Heater + Fan Part Dimension Notes Heater band Wraps bottom 70mm of hopper PTC ceramic element Fan 40–60mm Mounted in/near band for airflow Temp sensor DS18B20 probe Insert into band interior Feed Gate Part Dimension Notes Gate opening 50mm Just over ball diameter for single-ball pass Servo SG90, 23 × 12mm footprint Standard micro servo body size Neck/transition 45mm ID, 20mm length Connects gate to launch wheels Launch Wheels Part Dimension Notes Wheel diameter 50mm Foam or rubber-coated Wheel gap 35mm (edge to edge) ~5mm squeeze on a 40mm ball Wheel center spacing 85mm (center to center) Derived from gap + radii Motors N20, 12 × 24mm each (x2) Labelled M1/M2 Exit Chute Part Dimension Notes Funnel 60mm top → 45mm bottom, 40mm length Tapers from wheel zone to tube Exit tube 45mm ID, 50mm length Final ball travel path Control Box Part Dimension Notes Enclosure ≈150 × 100 × 60mm Project box, mounted off-frame Contents ESP32/Arduino, L298N motor driver, relay + DS18B20, 12V PSU See earlier wiring notes
Parameters
| Name | Value | Range |
|---|---|---|
| Frame Width | 300 mm | 200 – 500 |
| Frame Height | 450 mm | 300 – 700 |
| Frame Depth | 150 mm | 100 – 300 |
| Frame Column Size | 20 mm | 10 – 40 |
| Base Plate Thickness | 10 mm | 5 – 30 |
| Corner Bolt Diameter (M4) | 4 mm | 3 – 8 |
| Hopper Inner Diameter | 55 mm | 40 – 80 |
| Hopper Wall Thickness | 3 mm | 1 – 8 |
| Hopper Tube Length | 220 mm | 150 – 350 |
| Cap Outer Diameter | 60 mm | 50 – 80 |
| Cap Height | 10 mm | 5 – 30 |
| Heater Band Height | 70 mm | 30 – 150 |
| Heater Band Wall Thickness | 4 mm | 2 – 10 |
| Temperature Probe Diameter | 6 mm | 3 – 10 |
| Temperature Probe Length | 30 mm | 10 – 60 |
| Fan Diameter | 50 mm | 30 – 80 |
| Fan Thickness | 10 mm | 5 – 25 |
| Fan Hub Diameter | 15 mm | 5 – 30 |
| Feed Gate Opening | 50 mm | 35 – 70 |
| Gate Block Height | 12 mm | 6 – 30 |
| Gate Block Width/Depth | 70 mm | 50 – 100 |
| Neck Inner Diameter | 45 mm | 35 – 60 |
| Neck Wall Thickness | 4 mm | 2 – 8 |
| Neck Length | 20 mm | 10 – 50 |
| Servo Width | 23 mm | 15 – 35 |
| Servo Height | 12 mm | 8 – 20 |
| Servo Length | 28 mm | 20 – 40 |
| Wheel Diameter | 50 mm | 30 – 80 |
| Wheel Width | 15 mm | 5 – 30 |
| Wheel Edge-to-Edge Gap | 35 mm | 20 – 60 |
| N20 Motor Diameter | 12 mm | 6 – 20 |
| N20 Motor Length | 24 mm | 10 – 40 |
| Funnel Top Diameter | 60 mm | 40 – 100 |
| Funnel Bottom Diameter | 45 mm | 30 – 70 |
| Funnel Length | 40 mm | 20 – 80 |
| Exit Tube Inner Diameter | 45 mm | 30 – 70 |
| Exit Tube Wall Thickness | 3 mm | 1 – 8 |
| Exit Tube Length | 50 mm | 20 – 100 |
| Control Box Width | 150 mm | 80 – 250 |
| Control Box Height | 100 mm | 40 – 200 |
| Control Box Depth | 60 mm | 30 – 120 |
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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