In this version i use 16mm CF tube, usualy use by tarot for arm...
because it's look so bulk, so i called it Fatboy...
Test fly video : https://www.youtube.com/watch?v=LDs73rZ5S6I
F450 foldable drone frame, using 16mm OD carbon tube for each arnd and carbon plate for top and bottom body plate (or just print this plate if u have too) Fit for 140mm x 50mm x 50mm battery, action cam 3D gimbal, 4 x 30A ESC, Flight Controller on top of it, 11x4.7 propeller, 2213 motor or bigger..
Total weight (frame only plus CF tube) is 450 grams
folding dimension L270mm, W165mm, H115mm
unfolding dimension L485mm, W360mm, H115mm
Frame overview : https://www.youtube.com/watch?v=OWq9Dlb9HAE
PS: for motor mount is not purely my design... i just remix it from billkaroly design (thanks for sharing) https://www.thingiverse.com/thing:2791487
Using ABS for higher temp resistance... is better than PLA...