I have not yet decided what this multirotor will look like because i want to find some info about good things and bad things between trirotor and quadrotor and another solutions so that is the reason i named this blog multirotor. I think that quadrotor will carry more weight than trirotor but i keep my mind open for possibilities now and compare different options.
Example what if quadrotor have counter rotating dual blades on each corner and how it effects to power need and if it's example x2 more than normal quad what is battery's power vs. weight feature so does enough batteries weight more than this dualblade function have carriage... and how all this effects on flight time because i want it to fly long as possible without external power, and there is possibility that i'm thinking some automated "powerstation" where this multirotor system can land and recharge by it self without human to put cord in it...
These are only in my mind right now and few different visions but there is plenty work to get these visions to fly on these cold and kind of extreme weathers here Finland (today example temp. -26)
Sorry about few words.. I just don't have translator right now....
Here is another thread at RC Groups about a DIY QuadRotor. It is called Quadruino and features a wealth of info about building your own board and lots of Arduino Code using either pulsein and ServoTimer2 or using ServoDecode and SoftwareServo. Much more relevant for me than the MikroQuadCopter thread.
I use nc machines also and i can use the for my own hobbies also and i think my first proto will be aluminum mostly that if some crash happens i hope it wont be totaled....Is there anywhere aluminum blades or is those too expensive? Does somebody know is there any type of transmitter for computer for controlling rc in test purposes? or do i need make something like this http://ashishrd.blogspot.com/2007/02/computer-controlled-rc-car.html
Computer Controlled RC Car
Computer Controlled RC Car on Vimeo After working on this project all night, I've finally managed to control the RC car with my computer! I...
This link looked interesting for build ideas. I hate to copy a good design as this guy seems to be selling his, but with a CNC machine, some fiberglass and a couple of tail booms I could make this for a lot less than $150. Very clean looking design though.
@Ari, agree with the thread. What I found interesting were build ideas. Some of the threads off that page are very useful. Using Delrin blocks with helicopter tail booms is an inexpensive and very good looking sturdy approach for instance. I should have said that I'm ordering the motors, battery and structure components. I plan on building my own controller that drives commercial ESCs.
Although I'm not 100% sure but I'd say that quad-copters can turn because the rotor on the opposite of another rotor run to the same direction and the two rotors next to this rotor run to the opposite direction. (Ts. moottorit ristikkäisissä kulmissa pyörii samaan suuntaan.) One of these pairs turn the quad to other and the other oair to the opposite direction. Therefore when you increase or decrease one or both of these pairs' running speed it causes the quad-copter to turn while still keeping it level.
This is maybe silly question but can somebody tell me what is the way to make quadcopter (or that type multirotor) yaw. Normal helicopter yaw i understand but these multirotor systems are interesting and i just don't figure way to control yaw i know that only moving parts are the rotors but i just don't understand what happens on that moment.
There is possibility that i make this project hard way and trying different types for gyro/stability control i hope that it does not go too hard and collapse. But the reason why, is that i want to try different ways to control stability and if this project work maybe i can give new ideas for you...
@Venom57 I think that thread's quadcopters is mostly based on draganflyer board and i think also it's interesting but i just want to think it different way... Yes i can buy ready board but it is not same for me than if i use some code for platform and make modifications to that code to be good for this type of multirotor's.
But time shows what happens... I don't want to rush with this project so this might be longtime project.
I'm ordering parts today to build one. The thread author used someone else's control board, I'd like to make my own but may buy the same kit as I seem to have more money than time lately.
Comments
I have not yet decided what this multirotor will look like because i want to find some info about good things and bad things between trirotor and quadrotor and another solutions so that is the reason i named this blog multirotor. I think that quadrotor will carry more weight than trirotor but i keep my mind open for possibilities now and compare different options.
Example what if quadrotor have counter rotating dual blades on each corner and how it effects to power need and if it's example x2 more than normal quad what is battery's power vs. weight feature so does enough batteries weight more than this dualblade function have carriage... and how all this effects on flight time because i want it to fly long as possible without external power, and there is possibility that i'm thinking some automated "powerstation" where this multirotor system can land and recharge by it self without human to put cord in it...
These are only in my mind right now and few different visions but there is plenty work to get these visions to fly on these cold and kind of extreme weathers here Finland (today example temp. -26)
Sorry about few words.. I just don't have translator right now....
http://www.rcgroups.com/forums/showthread.php?t=885325
http://www.mikrokopter.de/
http://www.uavp.ch/
http://www.tt-tronix.de/
The asctec guys also have a hobby grade version of their product called the X-UFO brushless, I believe (I can't seem to find a link at the moment).
I've been following these two quadrotor RCGroups threads for a while:
http://www.rcgroups.com/forums/showthread.php?t=716870
http://www.rcgroups.com/forums/showthread.php?t=811550
There is possibility that i make this project hard way and trying different types for gyro/stability control i hope that it does not go too hard and collapse. But the reason why, is that i want to try different ways to control stability and if this project work maybe i can give new ideas for you...
@Venom57 I think that thread's quadcopters is mostly based on draganflyer board and i think also it's interesting but i just want to think it different way... Yes i can buy ready board but it is not same for me than if i use some code for platform and make modifications to that code to be good for this type of multirotor's.
But time shows what happens... I don't want to rush with this project so this might be longtime project.
LISY300AL
This lowers the potential IMU cost for a Quad considerably. By about $45? or nearly half.
Polulu has the better carrier.
Ben
http://www.rcgroups.com/forums/showthread.php?t=768115
I'm ordering parts today to build one. The thread author used someone else's control board, I'd like to make my own but may buy the same kit as I seem to have more money than time lately.
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