Brackets and mounts
Ultra-light X-frame for micro quadcopter
- Bounding box
- 147.9 × 147.9 × 2.0 mm
- Engine
- Precision B-rep
- Parameters
- 23
- Published
- August 15, 2026
Download
Free to download and use. See the terms.
The prompt
Design an ultra-light 3D-printable X-frame for a brushed micro quadcopter. Use 4× 8.5mm diameter × 20mm long brushed motors and 4 propellers with integrated thin circular propeller guards. Maximum frame + guards weight: 20g, target 5–10g. Mount an ESP32-S3 and MPU6050 rigidly at the center. Add adjustable mounting areas for 2× VL53L0X sensors: one facing forward and one facing downward. Add an adjustable 1S 3.7V 350mAh LiPo battery mount and space for 4× SI2303 MOSFETs and 4× flyback diodes. Make all component dimensions and mounting positions parametric/editable because exact board dimensions are not yet known. Use a skeletal design with thin arms, minimal material, triangular reinforcement, rounded corners, and no unnecessary walls. Optimize for PETG FDM printing with a 0.4mm nozzle, minimal supports, high stiffness and low vibration. Keep the center of gravity centered. Make the motor mounts adjustable for the actual motor dimensions. Export STL and STEP if supported. Estimate the final printed weight and reduce material if it exceeds 20g.
Parameters
| Name | Value | Range |
|---|---|---|
| Frame Thickness | 2 mm | 1 – 3 |
| Center Plate Size | 34 mm | 20 – 60 |
| Arm Center-to-Motor Length | 60 mm | 40 – 80 |
| Arm Width | 5 mm | 3 – 10 |
| Motor Diameter (bore) | 8.5 mm | 6 – 10 |
| Motor Pod Outer Diameter | 11.5 mm | 9 – 14 |
| Propeller Diameter | 55 mm | 40 – 70 |
| Prop Guard Radial Clearance | 2 mm | 1 – 4 |
| Prop Guard Ring Width | 2 mm | 1 – 3 |
| Board Mounting Hole Diameter | 2.5 mm | 1.5 – 3.2 |
| Board Hole Spacing X | 22 mm | 12 – 32 |
| Board Hole Spacing Y | 18 mm | 10 – 28 |
| Downward Sensor Hole X Size | 8 mm | 4 – 14 |
| Downward Sensor Hole Y Size | 4 mm | 2 – 8 |
| Downward Sensor Hole X Position | 0 mm | -10 – 10 |
| Downward Sensor Hole Y Position | -8 mm | -15 – 15 |
| Forward Sensor Slot Width | 2 mm | 1.5 – 4 |
| Forward Sensor Slot Length | 6 mm | 3 – 10 |
| Forward Sensor Slot Y Spacing | 20 mm | 8 – 30 |
| Forward Sensor Slot X Offset | 12 mm | 5 – 18 |
| Battery Strap Slot Width | 3 mm | 2 – 5 |
| Battery Strap Slot Length | 15 mm | 8 – 24 |
| Battery Strap Slot X Offset | 12 mm | 5 – 18 |
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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