Building an Autonomous Model Aircraft
ฝัง
- เผยแพร่เมื่อ 6 ก.ย. 2024
- This is the build progress of my autonomous model aircraft project. Here is the code for the Arduino if you are interested in using it. gist.github.co... Note that it is mostly untested as of right now.
Here are the open source drawings and laser cutting dxfs if you would like to build this project as well: drive.google.c...
A Brighter Heart by Audionautix is licensed under a Creative Commons Attribution 4.0 license. creativecommon...
Artist: audionautix.com/
Very impressive & ambitious project. Some of your design elements--the landing gear for instance...should be reconsidered. That type of long wire leg LG you've chosen and their method of attachment to a ply plate is 'traditional'-looking, but not very effective or practical. They will always tend to tear out of the fuselage at their mountings--and in the case of a ply plate glued to balsa longerons & formers, they will usually end up ripping out a lot fo your careful balsa structure on the way out! Try mounting those legs farther forward along the nose, however ditch the ply plate you've anchored them to and use sockets on either side of the nose fuselage with those legs angling backwards--in a way that they can bend and possibly pivot backwards, rotating in their sockets. At the same time, mount a hoop of thin, springy wire under the belly close to the CoG(..an inverted "U"..)--with the ends resting upon each wheel's mount axel. In this manner, landing forces will direct the LG legs to compress backwards, but the arched hoop of wire nearer the CoG/spar location will serve as compression damping legs, so the main legs don't flatten out and collapse beneath the model. If you can envision what I have described, you would have a 'sprung' LG arrangement that would resist tearing out from the fuselage due to the coupled shock absorption/landing force redirection this type of mounting provides. Best wishes and success to you!
Thank you for the detailed advice!
I've got a dumb question... What is the rubber band for if the motor is providing the power? Is it to act as a 'torque capacitor'? Store up mechanical energy and then release it in a burst? Fascinating.
@jamesbaker9211 Great question! That is exactly what the motor is for. The idea is that it winds the rubber band up on the ground, releases the energy and then rewinds again in flight.
Unfortunately I couldn't get very far into testing as the resin printed worm drive wore out after about 3 uses. It is also hideously expensive to custom make small gears out of aluminum so I'm a bit stuck