For an engineering project for high school, I have chosen to build an automated delivery drone, capable of carrying 1 kg of cargo, in addition to the dropping system we are going to build. I need…Continue
"I agree having a smaller size would be better, what size would you recommend for carrying one kilogram one kilometer away, dropping it, then flying back unburdened, and costing ~$300 to $400?
Do you know if any cheaper flight controllers than the…"
"We have a makerbot printer at my school, but to fit the large propellors, the frame has to have a 1 foot radius, and at that size I feel like it would get heavy; most 3d print frames are for smaller quads. Is there a particular print on Thingverse…"
"The diy foam tube frame shown here: https://www.youtube.com/watch?v=5XinbTcQAAc
looks like a possible frame that would cost practically nothing.
Its very light, and the lack of hardness means it won't transfer vibrations to the…"
"Re the frame if you can find someone with a 3d printer locally maybe they can print you a frame. You can get a real nice frame for not much cost in filament. Look on Thingverse for many options. Greg"
"you'll need a transmitter- I dont think flight without one is available with the firmware. Also be weary about going large- you'll have to fly in biigger places and flying near people/things becomes way more…"
"I did feel like I had come up with a lot of unnecessary parts but I wasn't sure what to strip.
The frame was also something I had trouble finding, I was trying to minimize radius but I realize that is probably pointless.
Thank you for all the…"
"Finally, you are buying a lot of unnecessary stuff. And that frame you chose is overkill in terms of weight.
For electronics, all you need is an apm, a gps, a 5v reg, and data radio set. Forget the sonar they are next to useless. Invest in a better…"
"As a side note this had similar objectives to one of a competition I helped a school with - the royal Thai air force uav challenge last year. Dropping a payload is not hard - what's hard is getting the payload to land accurately."
"That's not too hard. 2km round trip is very achievable. I was thinking more like 8km trip. Flying at 20km/hr means you need about 6min flight time back and forth. Good news is once you release the package your drone won't need so much…"
"Thank you for the insight!
-Our minimum range is one kilometer.
-We need enough flight time to make it that far comfortably, but I don't know what ground speed to expect.
-The drop mechanism is a motor with a hook, bolted to…"