They said you can't build a whoop with a TPU frame, but I had to try, and it worked! I modified a design from Thingverse and went through 3 iterations, but it flies. Not the spry-est quad in the world, turns out TPU is a bit heavy, but it is durable.
For the canopy, I took a betaFPV whoop canopy and made a resin cast of the inside, then used that to vacuum-form my own canopy out of yellow HDPE on a Mayku Formbox.
The rest is kinda standard whoop parts.
Here's one of the first flights:
And here's a testament to durability - I slammed into a tree:
Frame |
TPU tiny whoop frame by joshielevy
Thingiverse.com
|
See Site |
Flight Controller |
F4 1S Brushless Flight Controller V2.2
(19 builds)
Betafpv.com
|
$34.99 |
Motors |
BETAFPV 0603 19000KV Brushless Motors (4pcs)
Getfpv.com
|
$36.99 |
Propellers |
Gemfan 1219-3 31mm 3-Blade Whoop Propeller (0.8mm Shaft - Set of 8)
(4 builds)
Getfpv.com
|
$3.99 |
FPV Camera |
Z02 AIO Camera 5.8G VTX (Wired Version) with 25°+35°mount
Getfpv.com
|
$27.99 |
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That TPU Frame is pretty sweet.
Thanks! Sorry to say it looks better than it flies. Mainly because it's heavy, and I think that higher-g turns deform the frame more than a polypropylene (PP) frame would. I think PP makes the best whoop frames: they're durable and light.