Well, the zebra striped portions were added by me in fusion 360 ^^
I used a patch to fill the holes (there were the wings and the gears), maybe that was not the best idea !

Now i can add pins and create holes with boolean diff (no error anymore), but the hole appear only behind the striped parts
Capture.jpg
So it's useless

Here is my model i need to print
https://www.dropbox.com/s/bwoxyfqm11...model.obj?dl=0

Thx for any help !