/MFPV

Modular 3D-Printed frame system for FPV-based (4"-5") delivery drones

MFPV (ModularFPV or Modular First Person View Drone System)

Modular Open-Source 3D-Printed Frame System for FPV-based (4"-5") drones

Designed for the 2024 Technology Student Association (TSA) UAV Challenge and Hack Club Arcade. This meets all physcial and safety requirements for TSA.

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This system fits standard FPV parts and is relatively easy to work on. It comprises of mostly standard mounting other than the modular connector.

Additional Info

STLs will be on model sharing sites:

Printables and MakerWorld Links coming soon!

OnShape

Background

The R&D of this project has been in the works since November 2023. The orginal revision of the MFPV Project was finished in March 2024, using a mix of salvaged FPV parts and new parts to make a frankenstein of a drone. The drone had major diffictlties taking off until it was time to present the prototype at a state engineering confrence. With a new configuration hopefully fixing the take off issues, the reciever happened to short itself, dying. The project was a failure. I shelved the project, figuring out what could be done. Once Hack Hour evolved into Arcade, I was dead set on revising and publishing the project. And this is what came out of that determination.

Features and Specs:

  • Fully 3D-printed (other than hardware)
  • Support for 5" propellers
  • No glue required! (other than RX mounting)
  • Modular mounting on the bottom frame
  • Space for most Analog/Digital FPV cameras (Mounting not included, will require a custom designed solution)
  • Cooling for critical components
  • Super easy and quick to print (About 3 hours on “Next-gen" printers. Closer to 6-9hrs on slower printers)
  • Also doesn't require much fine-tuning due to very relaxed tolerances.
  • Easy to acquire hardware (just any M3 screw and standoff kit will work, round head works best)
  • Easy routing for XT60 wires/most other cables
  • Uses roughly ~70g of filament for the frame (About 200g total for the entire platform)
  • Super easy to make brackets for
  • Can be printed on beds the same as or larger than an i3 (at least 220mm x 175mm)
  • No post processing (assuming your printer has no issues)
  • STL and STEP files for printing and design changes.
    • Use the OnShape public link before using the STEP files.
    • Use the STEP files only if you're on other CAD systems (Fusion, Inventor, ect)

Compatible Parts

  • Fits 30.5mm x 30.5mm FC Stacks
    • (Preferably SpeedyBee F4 or F7 line “full size” stacks)
  • Fits 20mm x 20mm Analog VTX
    • Built around the SpeedyBee TX800, but most should work.
  • Fits 16x16mm motors
    • Fits 2207 or larger natively.
    • Could fit smaller motors (2203, 2203.5, 2205) with adapters or changes of the B frame.
  • Fits SMA adapters
  • Hole for RX antenna
  • Fits battery straps
    • (Designed around 4S Li-Ion packs but will fit most small-medium Li-Po packs)

For assembly and more info, check out the newly built ✨wiki

Read the warnings in the wiki. While not legally binding, building this prototype implies you agree by those warnings.