Pluto-120 – 3" Unibody Toothpick FPV Frame

The Pluto-120 is an ultra-light and rigid 120 mm wheelbase unibody toothpick frame designed for efficient and responsive 3-inch micro builds. The geometry is optimized for stiffness and low weight, making it ideal for quiet park cruising, and long-range micro setups.

✨ Features

• Unibody 3" toothpick frame with excellent rigidity
• Truss-reinforced arms for better torsional stiffness at minimal weight
• Central 25.5×25.5 mounting platform for clean AIO installation
• Octa-shape base rigid and enough space for 90° USB-C or Micro-USB ports (additional to square version)
• 120 mm wheelbase ideal for ultra-light 3" builds
• Compatible with analog and HD systems (DJI O4, HDZero, Walksnail, analog)
• Extremely lightweight design for long flight time and high efficiency
• STEP file included for your own customization

🔧 Build Specifications & Recommendations

Frame Thickness

• 2 mm carbon fiber
  Provides the best trade-off between strength and toothpick-class weight.

Motor Recommendations

Optimized for 1102, 1103, 1202.5, 1203.5 motors.
Can also handle lightweight 1303 builds.

Kv ranges:

• 2S: 6000-12000 Kv
• 3S: 4000-8000 Kv

Propeller Size

Supports 3" (75 mm) props.

Recommended options:

• HQProp T3×2×2
• HQProp T3×2×3
• Gemfan 3018
• Gemfan 3016
• Gemfan 3020

Screw Sizes

• Motor screws: M2 × 4–5 mm
• AIO board mount: 25.5×25.5 → M2 × 10–18 mm (depending on canopy or stack height)

3D Print Recommendations

Material: TPU (95A)
Suggested prints:

• Toothpick canopy (any 25.5 mm whoop canopy)
• Battery holder (strap or Flywoo-style slot version)

🏗 Build Tips

• Tighten the stack screw with a nut under the AIO to reduce noise
• Use M2 washers under motor screws to prevent carbon delamination
• Place the battery centrally for the best CG
• Keep wiring extremely short to avoid noise and save weight

🔗 Github Link

👉 Github: https://github.com/saturn-fpv/Pluto-120