3D printed drone for first responders Anyone

We are seeking a skilled CAD designer to create a detailed 3D design for a modular quadcopter drone optimized for emergency response applications. The drone’s frame must fit within a 256×256 mm build plate and support modular components for versatile use cases like medical delivery, fire surveillance, and search and rescue.

The design will include accommodations for pre-selected electronics and modular features, balancing lightweight, durable construction with efficiency.

Design Requirements:
Frame Specifications:
Dimensions:
Width/Length: 256×256 mm (horizontal and vertical frame dimensions).
Diagonal Motor-to-Motor Span: ~362 mm (14.25 inches).
Height: Max 100 mm for the main frame to allow compact assembly.
Build Plate Fit: Design must fit within a 256×256 mm 3D printer build plate for FDM printing.
Material: Optimized for PETG-CF (lightweight and strong).
Propeller and Motor Compatibility:
Propellers: Support for 8–9 inch tri-blade props.
Motors: Mounts for T-Motor F90 Pro II (1700 KV).
Clearance: Minimum 20 mm clearance between prop tips and frame.
Electronics Integration:
Flight Controller: Pixhawk or DJI N3/A3 (compact central compartment with ventilation).
ESC: 4-in-1 40A+ ESC.
Battery: Compartment for 6S 5000 mAh LiPo battery (approx. 140×50×50 mm).
GPS Mount: Include space for a Beitian BN-880 GPS module (with an elevated mast for signal clarity).
Camera: Space for mounting a FLIR Lepton 3.5 thermal camera near the modular pod.
Modular System:
Cargo Bay:
Modular attachment system below the frame.
Size: 3.5×7×2 inches (approx. 90×180×50 mm).
Secure locking mechanism for easy attachment/detachment.
Landing Gear:
Detachable legs to provide 30 mm ground clearance.
Aerodynamics and Heat Dissipation:
Design must be aerodynamically optimized for stability and efficiency.
Include ventilation holes for ESC and flight controller cooling.
Deliverables:
3D Design Files:
Formats: STL, STEP, and OBJ for 3D printing compatibility.
Exploded View:
Diagrams showing assembly of the frame, motor mounts, and modular components.
Technical Drawings:
Include detailed dimensions, tolerances, and material thicknesses.
Assembly Instructions:
Basic instructions for assembling the drone post-printing.
Budget and Timeline:
Budget: $500–$1,500 depending on experience and quality of work.
Timeline: Initial designs due within 2 weeks, with up to 2 rounds of revisions.
Additional Information:
Preference will be given to designers with experience in aerospace, drone design, or modular systems. read less