Arrma Mini Kraton Rear Wing Protector

TPU rear wing protector for the Arrma Mini Kraton, to give the wing a little extra protection from getting knackered when landing upside down. 

The geometry is pretty much spot on, as you can see in the last pic where I printed test pieces in PLA to verify the geometry, so when you print it in TPU, I'd recommend scaling it down.

The stl files are at 100% scale, printed at this scale is an easy fit, but no idea who good it will hold up.

I tried several different scales and ended up with 95% scale in X and Y, which gives a nice tight fit, so they won't come off easily. Just make sure you mount it, when the TPU is still warm (around 40°C bed temperature), as with 95A TPU, it can be mounted with a little bit of effort, but gets significantly harder, the more the TPU cooles down.

Printed in Prusament 95A TPU Jet Black

X and Y scale 95%

2 perimeters, 5 top and 5 bottom layers

Avoid crossing perimeters

25% Gyroid infill

 Import the 3mf file as project and everything is ready to go, only adjust your printer and filament.

The little disc I added at the start of the print, is just to clean the nozzle. For some reason the TPU keeps drooling a little after the purge line (not sure if there's a retract in the g-code), so the disc helps to stop this and get a clean print.

If you use a softer TPU, you might want to further experiment with the scale, for my 95A, the 95% was the sweet spot.