The queen 5" 220 quad frame
thingiverse
I wanted to design my own drone frame, so i did. OpenScad script follows but requires some of the libraries fetured on the openscad page (round anything and nopscad). has been printed in petg and flew well wiith a couple of non finished top/bottom covers (bottom one being a copy of top, but not printed fully and some cable cutouts). Seems to be pretty crash resistant as i have crashed a lot and only broke the frame after full speed into a tree, will update after summer to include proper top and bottom covers, and do some fixes to acomodate ccw motor cables better.
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