This week I tested my (almost) finished mini octocopter wich is build on a 3D printed frame.
Motor to motor is 360mm. Max 5 inch prop can be mounted on 18xx or 22xx motors.
Flightcontroller: APM 2.5
FPV: 700TVL sony cam / 5.8GHZ 25mw / MinimOSD
Telemetry: Lantronix B/G WIFI module
RC: 40mhz analog
Drive: DYS 1806-2300kv / Gemfan 5030 / HK 12a ESC / 3s 3000mAh
Total AUW: 1050 grams
All details as wel as a maiden flight video can be found on my blog:
-> OLH-360 Blog <-
As from now, you can follow the MultiWii Portal website on Facebook & Twitter.
All new multirotors, drones, airplaines or helis that you and others add to our RC aircraft repository are automatically posted to our Facebook or Twitter page.
Check it out!
https://www.facebook.com/MultiWiiPortal
https://twitter.com/multiwiiportal
And don't forget to share your RC aircraft with the rest of the world:
http://www.multiwii.be/
Just a short message to announce that the MultiWii Joystick feature I released for MultiWiiConf V2.2 is now available for V2.3
There are no changes to GUI or joysticks mode. Just upgrade to MWC v2.3 so that you can use this joystick/gamepad feature in combination with the latest multiwii FC firmware (v2.3)
All information and download are available at:
http://www.multiwii.be/multiwiijoystick
And when you are there, do not forget to share your drone! :)
New platform to share your drones!
Create and upload your multirotor, heli, airplane and share it with the rest of the world.
This platform can be used by all type of drones (not only drones equiped with a multiwii FC board).
Easy to use:
You only need to upload your aircraft one time to this new platform. From there you or others can share it via Google, Twitter, Facebook or even a forum.
Features:
Add and share your personal aircraft.
Find aircrafts on a map or by user selectable filters.
Add and share your favorite local airfield
Find airfields on a map or by user selectable filters.
...more features to come...
Start uploading your drone and make it live for ever! 
-> http://www.multiwii.be
Today I mounted and tested my led strobe lights. (HK 12volt, 1Watt, corn led)
As I'm still a beginner when it comes to flying a multirotor this really helps on orientating and controlling the multirotor.
The Led's are indirectly connected to the APM 2.5 arm signal pin. The led's are mounted in series with a transistor that acts as a switch. The apm board sets the switch (transistor) on or off. I used very common and cheap electronic components that you should find in every diy electronics shop.
I have uploaded a shematic (connection diagram), pictures and movie to my blog (http://wipo-y6copter.blogspot.be)
Hi,
A MultWii blog on the DIYdrones website might seem a little bit strange, but I know most poeple have an APM as well as a MultWii board so here I go.
The joystick feature that is available in the APM planner is not available in the MultiWiiConf software. So I have added the joystick feature to theMultiWiiConf software. Currently It's only available for Windows. All details about the software, download, test flight movie can be found on my foamcopter blog
Some time ago I posted a blog to implement some kind of gamepad mode in the APM firmware/software that would make it easier to fly a multirotor with a gamepad. I have now implemented this idea in my MultWiiConf modification and called it arcade mode. Although this mode has some limitation on fast movements (acro not possible) it is a very handy mode for basic flying and beginners.
Here it is. My third and final foam frame.
I ran out of foam so I had to cut out small pieces of foam from my previous foam frames and glued it all together with epoxy. This frame has enough room to mount a 2 cell 1300mAh battery. The battery is now moved to the CG making it more stable. Total weight incl the 2S1300 lipo is 285gr.
Next task is PID tuning. When I got a smooth flying quad I’ll check the AltHold feature with a sharp IR sensor.
Again all the details, pictures and movies or uploaded to the blog: http://foamcopter.blogspot.be/
Several days ago I posted a blog on my 30cm foam X-Quad. I have now created a smaller (half the size) H-quad with a total weight of 200gr (batt incl).
This frame is also a temporary test frame in order to move to the next stage. Next frame should be the final version with prop protection and I'm thinking on inversing the motors (push, not pull) to increase the efficiency. That new frame should also provide enough space to mount a 1300mAh lipo to increase flight time.
All the details, images, movie are uploaded to the blog: http://foamcopter.blogspot.be/
Hi, I'm currently in to a little project of making small quad's from foam. Currently I have made a basic X (30 cm) frame. This version is just to test the hardware (15g inrunner motors,3 inch props, ...). The first goal is to make it much smaller and add prop protection for indoor use. After that I would like to add features such as altitude holt with sonar/ir and a wifi/bluetooth reciever to control the quad by pc/tab/smartphone.
Project status, images, videos,... see the blog: http://foamcopter.blogspot.be/
1) first test flight indoor with i86L board: difficult to fly, unable to find good pid's
2) second test flight outdoor with nanowii board: flying much better even with std pid's
3) currently changing frame, to be continued...
In my previous quad project I had already found a cheap, simple solution for creating a diy motor mount that reduces vibration. Now I adapted it for my current Y6 project. The only difference lies in the fact that the quad had square arms and the Y6 round arms. For those who might be interested, I have created a small how-to.
Hi,
Almost 1 year ago I started a topic on the diydrons forum in wich I asked on how much efficiency loss I will have on converting my quad to an X8. Almost no reaction to my question. Nobody could give some figures wich I could use for my calculations. The only helpfull answer I got was from somebody who said that the efficiency loss depends on prop size and distance between the props.
Time has past, other projects are closed so I'm starting with the build of a Y6 multirotor. And the first thing before building the frame is a thrust test of 2 motors in sequence. Result is a 10% efficiency loss. See full graph and info on my blog at http://wipo-y6copter.blogspot.be/
This figurs can by handy for everyone who is building Y6/X8 copters. Currently I'm building the frame, but I will try to post more efficiency loss tests for other prop sizes asap.
X-Quad frame controlled by Arducopter v2.5.3 on a seeeduino mega 1280 board and a razor9dof imu.
Can it fly?
Yes it can :)
I don't know if this mode allready exists in the latest APM (arducopter) firmware. But I'm currently working on a project and I'm using arducopter firmware 2.5.3. To control my quad I use the joystick feature in the APM planner. But I'm not using a joystick I'm using a gamepad.
As you know gamepads always center there stick and it's hard to get a stick value that is not MIN, MAX or CENTER. It's to sensitive to have a good throttle control.
Now I'm implementing a gamepad throttle mode for my project (in the arducopter v2.5.3 firmware)
A very simple/basic overview of what is happing in the code:
When flying in THROTTLE MANUAL MODE then
-> throttle value = stick position
When flying in THROTTLE GAMPAD MODE then
-> stick posistion = center? do nothing: leave throttle at it's current position
-> stick posistion = down? decrease: throttle value = throttle value - some value
-> stick posistion = up? increase: throttle value = throttle value + some value
This way it's much more easy to control the throttle with a gamepad and to hold it on a fix position. But it also has some disadvantages. Increasing or decreasing to full max or full min will take some time. But if someone would work this out this gampad mode could be tuned with configurable sensitivity values etc to minimize the disadvantages.
here is a little concept video:
Yes, finaly there is some progress on my quadcopter project.
First of all I spended to much time playing with my little Mini-H-Quad project. If you wan't to see some FPV recordings from a the Fatshark predator v2 set then watch my blog on http://wipo-minihcopter.blogspot.be/
But now the real stuf. I have loaded the arducopter firmware v2.5.3 on to my seeeduino mega 1280 board. I added some code to let it work with the Razor 9 DOF imu. I use a lantronix wifi module for telemetry and a usb gamepad to control the quad via my laptop. Currently I have done only some basics tests. Motors arm/spin/disarm and IMU motion check. The next step (next blog) is PID tuning. Watch it on my other blog: http://wipo-quadrocopter.blogspot.be/
This week I tested my quadcopter. Some while ago I replyed to a blog and showed my homemade super cheap motor vibration dampers. Some poeple where sceptic. But totday I can show you that my multicopter can fly
Its's build from scratch. Wifi controlled and has aruidno compatible control board. It has a 9DOF imu, but I currently use it as a 6DOF.
Features
- Seeeduino Mega v1.1 board (arduino compatible)
- Razor 9DOF IMU from sparkfun
- LantroniX Matchport wifi module
hardware
- 4 x Motors AX-2210N 1000kv from hobbyking
- 4 x EPP 1045 props from lipoly (2xcw & 2xccw)
- 4 x Blueseries ECS 12 amp from hobbyking
- 4 x homemade vibration reduction motor mount (see previous blog)
- Turnigy 3000mAh 3S 20C Lipo Pack from hobbyking
Checkout my blog for all details and movie.
http://wipo-quadrocopter.blogspot.be/
