File 04 · Carbon FrameIn progress
The body everything else mounts to.
Model· pick your build
What does this do?
The frame is the skeleton: the one part with no electrons in it, and the one that takes the crashes. T700 carbon plates and arms, a 226 mm wheelbase for 5-inch props, 30.5 and 20 mm stack mounting in the middle, 16x16 motor mounts at the arm tips, and an aluminium camera mount at the nose. It decides what fits: stack height, camera width, prop size. Less obviously, it decides what your gyro feels. Every arm has a resonant frequency, and flex and vibration land straight in the flight controller's filters, so stiffness is a flight characteristic, not a cosmetic one. OpenFC Lite and OpenESC drop in without spacers.
See how the whole aircraft works →Published so you can study it. Produced so you don't have to.
Every arm, plate and standoff, exploded
- Top plate: carbon, carries the camera + VTX bay×1
- Arms: replaced individually×4
- Bottom plate: dual stack pattern×1
- M3 aluminium standoffs + hardware kit×1
Every spec, one table
- Wheelbase
- 141 mm
- Prop size
- 3"
- Arm thickness
- 4 mm carbon
- Plate thickness
- 2.0 · 2.5 · 2.5 mm
- Stack mounting
- 25.5 × 25.5 + 20 × 20 (M2)
- Motor mounting
- 9 × 9 · 12 × 12 (M2)
- Max stack height
- 20 mm
- Camera width
- Up to 20 mm
- Video systems
- Analog · DJI · Walksnail · HDZero
- Material
- T700 carbon, aluminium camera mounts
In the box
- 1×Top plate + bottom plate
- 4×5" arms
- 1×Hardware kit
- 1×Camera mount
- 1×VTX antenna tube clamp
- 1×Build card
Provenance
- DesignedLeuven, Belgium
- AssembledShenzhen, China
- NextEU assembly
Developed by these people
Manufacturer & safety information
Incutec BV, Stapelhuisstraat 15, 3000 Leuven, Belgium · contact@opendrone.be · KBO/BCE 1038.934.039 · EU Declaration of Conformity
Product type: OpenFrame · SKU OPENFRAME-3
- Not a toy. Not for persons under 14; minors only under adult supervision.
- Component for self-built unmanned aircraft: the builder is responsible for the assembled aircraft and its lawful operation.
- LiPo batteries can ignite when damaged, shorted or overcharged; never charge unattended.
- Remove propellers before bench testing, configuration or firmware updates.
- Observe the voltage and current limits in the specifications; reverse polarity destroys the board.
- Geen speelgoed. Niet voor personen onder 14 jaar; minderjarigen alleen onder toezicht van een volwassene.
- Component voor zelfgebouwde onbemande luchtvaartuigen: de bouwer is verantwoordelijk voor het samengestelde toestel en het wettige gebruik ervan.
- LiPo-batterijen kunnen ontbranden bij beschadiging, kortsluiting of overladen; laad nooit zonder toezicht.
- Verwijder propellers vóór benchtests, configuratie of firmware-updates.
- Respecteer de spannings- en stroomlimieten in de specificaties; omgekeerde polariteit vernietigt het board.
- Ceci n'est pas un jouet. Interdit aux moins de 14 ans ; mineurs uniquement sous surveillance d'un adulte.
- Composant pour aéronefs sans équipage auto-construits : le constructeur est responsable de l'appareil assemblé et de son utilisation licite.
- Les batteries LiPo peuvent s’enflammer en cas de dommage, de court-circuit ou de surcharge ; ne chargez jamais sans surveillance.
- Retirez les hélices avant les essais au banc, la configuration ou les mises à jour du firmware.
- Respectez les limites de tension et de courant des spécifications ; une inversion de polarité détruit la carte.

