Since there isn't one up already, I decided make a thread here with some tips and suggestions that I come across when building a custom quadrotor from scratch.
Anyone else who has a few tips or suggestions to building custom quadrotors, feel free to post!
I'll start with:
Don't use all-thread, also known as threaded rod, to keep your hub structure together. It's evil!
If you do end up using this in your design, be prepared to spend hours of taking it apart and puting it back together. 90% of that time will be in moving the nuts around on the all-threads.
Id recommend hex standoff, they work pretty well with a little less time spent screwing and un screwing
Yes, most definitely! I plan to get a box full of them as soon as I can. I remember seeing some up for sale on Sparkfun...
i got mine off of mcmaster, you can grab them in nylon or aluminum depending on what weight/strength you want
I'm thinking I'll go with the nylon's... since they're more flexible than aluminum, I'm thinking they may cut down a bit on vibrations.
Using 1/4 inch round rods for the arms presents the problem of making a motor mount that will stay in place. So far, I've come up with a custom-milled motor mount design that screws into the bottom of the motors and simply clamps onto the rods.
Advantages of this setup:
I've refrained from drilling any holes into the rods, because I'm afraid it would take too much strength out of them and would still only have 2 points of contact...