Help needed making an object manifold in openscad :S (1 reply)

Hey guys,

I've being creating a quadcopter frame in openscad. This is my first real project using the tool, and the first time I stumble into this problem. Sorry if you find my coding too messy, I'm still getting a hang out of the program.

I've tried correcting several modules, but I'm not sure which one is causing the problem. I read why a design may not manifold, but since I used a lot of resources I've never tried before, I'm clueless.

Perhaps it is because of the 0.001 cube that's used to create a hull? or the 43 degrees holder that is attached to outer circle, or the differences done onto that circle, or the fact that I couldn't really align the gps mount to the outer circle...

I'm hoping that someone with experience can easily spot my mistakes so I can correct them.

Thanks