OpenWhoop Parametric Micro Racing Multirotor Drone by Glasswalker

Last crawled date: 3 years ago

OpenWhoop is my attempt at my own "TinyWhoop Like" design for off the shelf common parts.
My goal was to make something easily tunable/tweakable via parameters, so I could adjust/dial it in as I crash it and total the frame.
Also allowing others to tune it to their parts/needs
It's heavily inspired by the "Whoopie" at: https://oscarliang.com/whoopee-micro-frame/ but was designed from scratch in OpenSCAD.
I also originally wanted to make a hex with it, so that's designed in. However I struggled to get a hex to fit into my target 110mm wheelbase for the local indoor fpv racing club rules, so I had to drop it to a quad. So the library supports both options.
Lastly, I wanted to move the camera out in front, as I had an idea for an integrated single part print, without add-on parts that could support variable angles for the FPV camera, and keep it out in front to keep the rotors out of the view.
Designed in OpenSCAD so all you need to do is open the config file, edit the values to your desired parameters (note there are 2 configs, one for quad, one for hex) and then open the QuadFrame or HexFrame scad, render, and export to STL.
I printed this in PLA, and Result from the Quad, was a 14g frame all one piece which I added everything else to for an All Up Weight of about 56g before battery. (right now using a much too large battery at 800mah, picking up some smaller batteries to fly with). Even with the 800mah, it's pretty quick, and agile. Flies very well.
I included a default STL for both hex and quad. The Quad STL is the one I actually printed, and have flown, and is shown in the pic.
The Hex is designed to be smaller, using actual Inductrix props, but on 8.5mm motors (would likely require some persuasion to get the prop onto the slightly larger shaft). I suspect it would perform VERY well. But have yet to pick up the props to try it out.
The current build is using the following parts:
Hubsan H107d props
8.5mm motor set from HobbyKing
Edge Brushed Naze32 Flight Controller from HobbyKing (supports hex brushed motors)
Latest BetaFlight 3.x on controller
Eachine micro cam/vtx in one
Turnigy RX (stripped of it's casing) TGY-IA6C I believe, for a Turnigy Evolution
Props were from Amazon
Cam/VTX is a standard design from Eachine. I got it at LFS, but should be easy to find.
Here are the HobbyKing Part Numbers:
Motors - 154000032-0
Flight Controller - 571000106-0
RX - 9114000063-0
Also using a random 800mah battery from LFS, plan on swapping down to a 300mah or lower to reduce weight significantly.
Anyway, this is a work in progress, it flies nice, but still needs some work. But I thought I'd release it so that others could try it out, and I could get some feedback/suggestions from the community to improve it.
So give it a shot, I'd love to hear your feedback!
See below in the custom section for more detailed instructions.
If you like the design, let me know, and if you ever need this (or anything else) printed, don't hesitate to check out my hub on 3D Hubs: https://www.3dhubs.com/service/glasswalker
Thanks for looking!