RPLABS

OPEN SOURCEAMERICAN MADE

Carbon fiber drone frames designed, machined, and assembled in the United States. Every part specified, every file published.

Falcon Q4 carbon fiber quad frame, front view
Open SourceAmerican Made

Development-class quadcopter platform.

Falcon Q4

500 mm carbon-fiber X-frame · 4S–6S · 10–12" props

Starting at $350

Falcon Q4 carbon fiber frame
Wheelbase
500 mm
Frame Weight
~610 g
Recommended Props
10"–12"
Battery
4S – 6S Li-Po
Payload Capacity
up to 1.5 kg
Assembled Dimensions
500 × 500 × 300 mm
Construction
Carbon fiber + aluminum
Recommended Motor
2216 / 2813-class

Inside every frame

BUILT FOR FLIGHT

Carbon Fiber + PA6-CF

3K twill-weave carbon plates with PA6-CF structural parts. Strong, stiff, and light.

Full BOM Transparency

Every part, fastener, and adhesive listed end-to-end. No mystery components, no sealed subassemblies.

Standard Mounting

Common hole patterns and stack clearance. Bring your own electronics — the frame gets out of the way.

Open-Source Files

STEP models, mechanical drawings, and BOM published on GitHub. Modify it, extend it, remix it.

Field Repairable

Every arm, motor mount, and landing gear leg unbolts in minutes. Ship spares, not paperweights.

Made in Texas

Designed and assembled in Austin, TX. No overseas contract manufacturers.

Get in touch

RESEARCH, INTEGRATION, OR EVALUATION?

Evaluation units, integration support, and custom BOM requests — send a note and we'll reply within two business days.