Observer UAV Mods

A bit of a story but bear with me! My Observer camera ship had a strange characteristic of diving or nosing down when using a lot of throttle, therefore taking off was done gently at take-off but God help you if you were not ready and you opened up for WOT in flight. Although t it does fly easily at 1/3rd throttle. Anyway, after a lot of searching found that many other owners had the same issue. Someone discovered that the motor thrust angle is 2 deg and should be ideally at 6 deg with 2 deg of left (because it is a pusher). He also posted a link to a place in Belguim where they have created a modified motor mount using a 3D printer. Great so ordered one, looking forward in a weeks time for the said mod to arrive.

It did! But WTF is this? Image one is what I should have got. Image two what I actually have. I don't think it will fit.:lol: Got to laugh because I might just scream instead. Obviously a cock up (hopefully).

After doing a fair bit of reverse searching through my browser history I found the page that demonstrated two versions of the motor mount, one for 11 inch & 12 inch props with either CW or CCW drive train. The latter item for side thrust angle improvement.

I also discovered the designers page and managed to download the 3D printer files. Below is what I want to achieve and a 3D snapshot of the item in question. If I don't get a response from Belgium then I will have to find someone with a 3D printer.

Oh, apparently the mount should be 9 degrees not 6 deg downthrust

Phil - I know a local model helicopter guy who is well into 3D printing bits for his helicopters.
Let me know if you wish to go that route.
Colin

ronp849 bought Franks 3D printer but don't know what capability he has reached.

Phil mentioned that he had a

bear with me

If it comes with you again I should leave your honey sandwiches at home Phil, they can get a bit possessive also you know what they do in the woods and we don't want any of that behaviour.

Hi Phil
I have downloaded the attached file - is this the one you want?

In the meantime I will have a go at printing it.



Can you forward the file you have - is it an STL file?