All Posts (14056)

Sort by
T3

3689372083?profile=original

Even if there is no webpage in english, you might enjoy browsing the polish version.
There are 4 participants with quite interesting UAVs.
AFAIK they were stabilized FPV planes in 2009 with onboard autopilot prototypes made by the students.

Current constructions are:

-----------------------------------------------------------------------------------------------------------------------------------------

Rzeszów University of Technology
PR-5+ Wiewiór
http://kni.prz.edu.pl/bsi/?module=pr5plus&action=opis

(Wiewiór=male squirrel, probably the one from Ice Age Cartoon, watch the nose...)

(see picture above)



Wiewiór, following my imagination:


Maiden:

https://www.youtube.com/watch?v=y5JaiPQnqss

Catapult testing:

https://www.youtube.com/watch?v=zGtdsM8GUFk


-----------------------------------------------------------------------------------------------------------------------------------------

Warsaw University of Technology
Adeli 2 http://aerodesign.meil.pw.edu.pl/uav/


Maiden:
https://www.youtube.com/watch?v=aL1dEbgLxpc
-----------------------------------------------------------------------------------------------------------------------------------------
Bialystok University of Technology
PB-BSL-2
http://www.bslbialystok.yoyo.pl/


Maiden flights (sort of Delivery 1 from Outback challenge)

https://www.youtube.com/watch?v=t-vR4BNGtYk&NR=1

https://www.youtube.com/watch?v=L0HCqMdQx84

https://www.youtube.com/watch?v=A_qsmVzjjqQ


-----------------------------------------------------------------------------------------------------------------------------------------

Wrocław University of Technology
UAV BALSA (in fact made of fiberglass)
http://pwrbalsa.blogspot.com


Maiden:
https://www.youtube.com/watch?v=xVON2oHNhr4


-----------------------------------------------------------------------------------------------------------------------------------------



Rules (of course in Polish - yes, is profitable to learn Polish in order to follow the most recent developments in avaition technology)
http://miwl.smil.org.pl/download/Regulamin_BSP-2010.pdf

Note: BSL means UAV in Polish.

Almost all entrants have very well engineered platforms made of kevlar, carbon fibrglass, CNC machined metal wing joints, pan-tilt turrets.
Somehow Poles got crasy about bimotor with less or more inverted Vtail plus ailerons.
No landing gears, apaprently no flaps, at elast 2 got parachute since 2 years.
Adeli and Wiewior had their SAE heavy lifter versions.

The mission is similar to Outback challenge in that the main problem is identifying a target position (square cloth). Nothing has to be dropped, the search area is closer, but the landing area is very difficult (must land uphill or between the trees, this is a glider airstrip on mountain slope. Pteryx was there, see the photomap:
http://www.aerialrobotics.eu/pteryx//bezmiechowa-stitch-2010-05-29.jpg).
Read more…
3D Robotics

This is great stuff--the summit was packed and buzzing. Very much felt like the beginnings of something big. I spoke later in the day on the Open Hardware Business Models panel. But the business models are all pretty simple: Give away the bits, sell the atoms. Charge enough so that you can keep doing it.

This radical idea of making a profit so you can grow and keep up with demand would not be unfamiliar to the Babylonians. As my co-panelist Phil Torrone put it, "Professors keep coming out to interview us on our business model, and then they later apologetically email to say that they can't use it because it's too boring. Maybe we should have a Facebook app or something."
Read more…
3D Robotics

New Arduinos announced!

I'm here in New York with the Arduino team (for the Open Hardware Summit and Maker Faire NYC), and the team has just announced the long awaited 1.0 version ("Punto Uno") of the Arduino platform. This is actually just the start of a series of hardware and software evolutions that will take Arduino into even more markets, both broader and higher-end. The Arduino phenomena, as big as it already is, is only going to accelerate from here.


The two main hardware differences in the new board are that the venerable FTDI chip that's used as a USB interface has been replaced with and Atmel ATmega8U2 and the Mega's Atmega 1280 has been replaced by a Atmega 2560, with more memory. Here's how the team describes this:


--"We replaced the aging FTDI chipset with a custom made usb-serial converter built with an Atmel ATmega8U2 this provides lower latency and doesn’t require to install any drivers on mac and linux (on windows all you need is a simple .inf file) more advanced users will be able to reprogram the USB chip to make the board show up as a variety of USB devices (Keyboards, Mice, Joysticks, MIDI etc)"


--"An upgrade for the Arduino Mega which will sport the new Atmel USB chip plus an ATMega2560 processor with twice as much flash memory. We’ve been able to obtain some significant savings due improvements in the production process and better pricing from suppliers that we are happy to pass on to customers. This board will have the same graphic design as the UNO.

At the moment, due to limitations in the GCC compiler only 128k of flash are immediately useable but we’re very close to unlocking the whole memory space."

We in the ArduPilot/Copter project, along with Sparkfun, have been working with the Arduino team closely on these changes, and will be making similar changes to the APM board and IMU shield. It's all backwards compatible, so there should be no code issues or differences in performance with the existing boards, but the new boards with the ATMega8U2 should be a bit cheaper to manufacture, and won't require the FTDI driver, which should make things easier for newcomers.

Read more…

Concept Quadcopter with retractable landing gear.


3689371908?profile=original


Concept Quadcopter with retractable landing gear.


I've been working on this idea for the last 2-3 weeks, and if all goes well, I’ll start
the machining the parts soon for the 1st proto frame.



Features:


* 100% carbon fiber material in all body parts


* Retractable landing gear from Transmitter (maybe if possible with the use of sonar, auto
retractable or deployment if distance from ground > 2m)


* Foldable arms for easy transport in a Heavy Duty Case


* Main Body from molded Carbon Fiber sheet ( not yet implemented in renders )..


* Heavy Lifter (if possible 1 or 1,5 kg )



It well be a real challenge for me because this is my 1st DIY project .


When I well have the full frame tested, I’ll post all building instructions and Acad files
, if somebody is interested in making this frame for their personal use .




3689371901?profile=original

3689371929?profile=original

3689371946?profile=original

3689371985?profile=original


Read more…
Moderator

UK CAA clarify things


If your in the UK and getting ready for some big UAS purchases for Christmas just remember the CAA are waiting


With the increasing popularity of small, unmanned aircraft (20 kg or less), some of which can now be controlled by Smart Phones, the UK Civil Aviation Authority (CAA) has today issued advice on using the devices in built-up areas or when in proximity to people, property or vehicles. The CAA said it was important that owners of the aircraft understood the risks they pose, despite their small size, to other airspace users and also to individuals on the ground.

The CAA pointed out that these devices are ‘aircraft’ and are therefore covered by regulations within the Air Navigation Order, which anyone flying them should be aware of. There have been a number of accidents in recent years, some fatal, involving model aircraft, and to avoid similar incidents and risk to third parties, operators of these new generation of unmanned aircraft should take great care when using them. Where such small, unmanned aircraft are fitted with surveillance cameras, they need permission from the CAA to operate within 50 metres of a person, vehicle, vessel or structure (not in control of the person in charge) and when operating over or within 150 metres of any area that is substantially used for residential, industrial, commercial or recreational purposes or open-air assemblies of more than 1,000 people.

Emergency services, and many commercial operators, are already using small, unmanned aircraft mounted with cameras, but are doing so with the full knowledge and authorisation of the CAA. All such flying is done within set distances from the pilot, who must also be able to clearly see the aircraft at all times to ensure safe operation and the avoidance of collisions.

Matt Lee, Head of Regulation Enforcement at the CAA, said: “Anyone thinking of buying a small, unmanned aircraft should be aware that whilst there is a lot of pleasure in flying one, they are not toys and they must be operated legally. In the wrong hands or used irresponsibly in built-up areas, or, too close to other people or property, they represent a very real safety risk. As well as the danger of being physically hit, there is also the chance of other accidents being caused through distraction, for example, if a car driver was to be surprised by something flying towards him. In the past we have seen people seriously injured or even killed by model aircraft and, now that small, unmanned aircraft are becoming more readily available and simpler to fly, we need to avoid any similar incidents.”

The CAA said it had contacted several manufacturers and distributors to explain the rules for using small, unmanned surveillance aircraft in the UK, as set out in the Air Navigation Order, and asked that this information be passed on to potential and existing customers.


So private or commercial no dumb videos on YouTube please. The people at Parrot are almost certainly the people that prompted this response with their very ill conceived advertising campaign


I have already informed my customers in fact we have always told people what the rules were. For those of you that might be customers.....


In summary, as soon as a camera is put on a model it becomes a UAS, its the law here don't whine, it was in the pipeline for at least 5 years before it happened.


Privately


Aircraft weight up to 20KG carry on, just don't do anything silly


Commercially


Aircraft 0-7 kg BMFA A cert and form SRG 1320 submission

7-20kg BMFA B cert and form SRG 1320


I think its 107 pounds for the permission.


This pilot certification route will change as the CPL(U) is defined and comes into existence. If you do not have prior aviation knowledge the CAA may ask you to train using Euro USC.


The guys at the CAA are actually very cool and only want to see things develop correctly and the industry to lead the world here. Its interesting to see Bill P having problems flying at a small AMA event and yet we could fly at Farnborough airshow this year. https://www.youtube.com/watch?v=XnJ0Gu0gVf4 ;


The CAA have made their position clear, its the head of prosecutions talking in that press release. Thankfully in all my flying I have been lucky and they have not come after me, honest. But I know people that have been pulled up for the odd moment of youthful exuberance and its not funny.






Read more…

My first quad rotor


Wanted to share my first Arducopter flight with you. As you can see it needs some tuning.


Stable mode is getting better after a little tuning :)

Can anyone suggest some starting values for PID tuning in acro and also stable mode?
Quad weight is 750 grams incl. battery. (980 grams with 5000 mAh batt.)
Distance between motors is 31.5 cm (45 cm diagonal).
All tips and tricks is appreciated :)


Here is some info and pictures of the quad :)

Part list at the moment:
1 x Ardupilot Mega + Oilpan
1 x Modified Mikrokopter MK40 frame
1 x Modifiek HK-500 GT Landing skid
4 x Turnigy 18a Plush esc
4 x Hyperion ZS 2209-30 motors
4 x Propeller EPP 1045
1 x 3s lipo 2200 mAh
Carbon frame parts
Rubber dampers
Gyro tape

Ready to fly weight with the parts above is 750 grams.

Parts bought but not mounted yet:
3s 5000 mAh lipo
Magnetometer
Mtek GPS
Cmos video camera
900 mhz 500 mW video transmitter










Read more…

36x Zoom Camera Daylight and IR 850nm Test


Hi Guys

We just tested a new camera with 37x Zoom.
This camera including optical isolated RC servo line controller for zoom control via RC

Sun was down since 30 minutes and 850nm spectrum already giving high contrast details in this conditions.

IR 850nm band looking good option to separate the object from the background on the nature (threes and sea)
Maybe I shell try it on a plane.

dsc00094.jpg



Mounting Holes on metal chassis


dsc00097.jpg



Button Interface and Optical isolated control inputs (Zoom/Focus/RS485)

dsc00101.jpg



Features:

Weight: 190gr
Dimentions: 105x50x55mm
Optical Zoom Factor: 36x
Sensor: 1/4" sony super HAD CCD
Focus/Iris: Built in Auto Focus/Auto Iris
Digital Control Protocol: RS485
RC servo channel control: Zoom control with auto focus


Read more…
Developer

TX Mode 1 and 2 quick tutorial

This TX is FlySky - TH9X same as Turnigy 9X 9Ch and many more brands ( they use almost same body )




So if you like to change from one mode to another,

you need to move two parts from one stick to another


1. Metal plate thats holds Throttle stick in position (not going back to middle)

2. Plastic arm and spring ( to get the stick go back to the middle)


Here some closeups on the parts, its easy just open the back panel, move the sticks and you'll what moves what :)






I'll try to do a video some day ...

Read more…

ArduPilot Mega Telemetry on RC Transmitter Screen

What's the Turnigy TH9x or Eurgle 9x or other 9 channel clones good for ?
Well being a $60 transmitter very good. Add some new FW and holy cow !
Here is my modified $60 Eurgle TX.
v=Vtwh3K0XHP8&feature=player_embedded">https://www.youtube.com/watch?v=Vtwh3K0XHP8&feature=player_embedded

here is a group wanging it out!
http://www.rcgroups.com/forums/showthread.php?t=1266162&page=91
Earl






Read more…

fd4362b3-7173-4854-b242-50c097f2828e.Full.jpg

All patent graphics: USPTO [moderator edit]

Some unusual new design schemes for UAVs were recently granted US patents.

"Designs for morphing and articulating UAVs are among some of the latestest patents approved by the US Patent and Trademark Office. One is a Boeing patent for a lifting-body UAV with telescoping wing.

c022cbbb-c9b7-4ef1-a65c-ec837d74dfd5.Large.jpg

Concentric wing sections extend for a low-speed, high-lift configuration and retract flush with the airframe for high speed and low lift. Russian aircraft designer Ivan Makhonine flew the telescoping-wing MAK-10 in 1931, but Boeing's patent goes a step further and envisions extendable foreplanes, vertical tails - and variable-geometry telescoping wings...

fd4362b3-7173-4854-b242-50c097f2828e.Large.jpg

Another Boeing patent is for a solar-powered UAV capable of continuous operation at northern latitudes and during winter months, when sunlight is in short supply.

703495f5-4b37-4b54-8fc2-bd1fa7df4dae.Large.jpg

The aircraft has a planar "solar sail", with solar cells on one side, mounted so it can rotate around the aircraft's roll axis to track the elevation of the Sun while the vehicle remains horizontal. The X-tail also has solar cells on one side and rotates to track the Sun while providing pitch and yaw control of the vehicle.

1b40fdab-23f9-4b96-ac99-b7cd39c8228c.Large.jpg

One final patent, awarded to Virginia-based Geoffrey Summer, is for a "skybase" system of forming a high-latitude UAV from multiple smaller aircraft. These "modular flyers" would be air-launched individually and would join up, wingtip to wingtip, to form a larger "articluated-wing"vehicle - the more that join the higher it can fly.

6fb6abc0-d81a-43cb-ba36-00b366a89de3.Large.jpg

As illustrated above (right), individual flyers could fail and the skybase would reform and keep flying. Additionally, individual flyers could be detached from the formation and despatched to take a closer look at a target before returning to rejoin the skybase."

Read more…
100KM

techpod1.0 ready to ship

5015652144_246150382d.jpg


Here is what you get


5015020779_fb0a555fca.jpg


including :

EPP wings and tail , carbon fiber tail boom , CF wing spars , CF joiner , CF tail spars , CNC cut aircraft grade plywood , polycarbonate front and rear lids , 1/4 turn fastener for front lid , acrylic camera dome , ABS molded engine cowl , all push rods , control horns , balsa sheeting and stock , all needed screws and assorted hardware .


Not included but recommended running gear


motor : E-flight power 10 brushless in runner

ESC : castle creation thunderbird-54

Batteries : thunderpower pro light v2 3S 2600 mah x2 wired parallel

servos : 2x hitec HS-81 (elevator,rudder) 2x hitec HS-55(2x ailerons) 2x HS-5055mg (pan,tilt)

TX & RX Spectrum DX-7

Prop : APC E11x7

camera : CCD Killer Camera Micro NTSC Camera

as of this posting there are only 4 left from this run . the material for 20 more is on the way . will be available in approximately 2 weeks


for the latest news check http://evuas.com

Read more…

Modkit


I came across this on sparkfun.com and think this is a great way to get your kids started in micro controllers.


I realize this might not be the best suited for the needs of a UAV but LEGO Logo was where I got my start in something that I could call programming and as long as the price is right I think this would be a great tool to get the local kids into micro controllers.

Home page

http://www.modk.it/

Video

https://www.youtube.com/watch?v=RNqDoniUD9I

Funding

http://www.kickstarter.com/projects/modkit/modkit-electronics-arduino-for-everyone

Read more…

QuadRotor Project, Part 2

3689371147?profile=original
Some weeks ago I posted about my quadrotor proyect and showed a video with the Roll controller on a testbench.

Now I'm working with the yaw controller. I build a simple testbench to test the behaviour of the controller. As I said before, I am implementing a digital PID on the arduino MEGA, and I use Labview just to send the commands and visualize the behaviour of the quad.

Here is a small clip of how the yaw controller is working right now. I still have to improve it, but I think I'm getting there. Please feel free to comment or ask any question.

I will add some pics again for those who didnt see my previous post.







Read more…
3D Robotics


As most of you know, we've been in semi-public alpha with the ArduPilotMega code for the past two 2-3 months, and there has been the usual torrent of bug fixes, feature additions and architecture changes during that period as both the fixed wing and quad/heli teams test fly the board. By the time we release 1.0, this will be the most tested hardware/software configuration in DIY Drones history, which I'm really proud of.


Here are the latest updates:


1) The official public beta (as a zip file) is targeted to be released on September 30th. It will be announced here. It will have full autopilot capability and should be ready for unlimited flight testing. The new GCS may be out at the same time; if not, there is a mode by which APM can use the old GCS, which has all but the in-flight mission upload capability.

2) The APM board is now available at Sparkfun (another 233 are in stock--more than 500 have already been sold).

3) The DIY Drones factory moved to a larger industrial space yesterday with our big new Manncorp 7722-FV pick-and-place machine (our second!). This is to ramp of production of the new APM IMU Rev-H boards, which are much easier for us to produce, and anticipates the huge demand we're seeing for ArduCopter and for fixed wing once the code is out. Limited quantities of the board are available now, and stock should be replenished on a daily basis going forward.

4) Speaking of ArduCopter, Jani says he may start taking pre-orders in two weeks, and shipping full kits within the month.

5) Finally, if you've one of the brave early adopters who has been using the Alpha APM code out of the SVN, you should be aware that there have been some significant architecture and config file changes. We VERY MUCH RECOMMEND that most users wait for the public beta next week--the alpha code in the SVN is changing fast and often unstable, and we will not be able to answer questions on it from non dev-team members. But if you're an SVN expert or already knee-deep in the alpha code, you can download the latest code from the SVN and follow these instructions from code guru Michael Smith:



- After you update your Sketchbook, or ArduPilotMega folder, check that you don't have any local changes or conflicts at the top of ArduPilotMega.pde. Also make sure that you are no longer including a personalised configuration file. You should not have any local changes in this file related to your configuration.

- If you still have a copy of APM_Config.h containing options from the old version of the file, save any specific options you changed and delete the file.

- If you still have a copy of APM_PID_gains.h containing changes from the old version of the file, save any specific changes and delete the file.

- Open APM_Config.h.example in your favorite file viewer. Note that this file isn't included by anything, it's just a reference. DO NOT copy this file as a basis for your new APM_Config.h file.

- Open a new APM_Config.h file. In this file you will be saving *just* your local changes. It will never be overwritten by changes made by the developers, so you will be relatively save from conflicts related to option changes.

- Work through APM_Config.h. Note that only the REQUIRED options are, well, required. Currently that's just GPS_PROTOCOL. Here is my current APM_Config.h file in its entirety:

// Mike's local config
#define GPS_PROTOCOL GPS_PROTOCOL_UBLOX

- Check your old saved APM_Config.h changes (if any). Note that units for many properties have changed to be more friendly (e.g. hundredths of a degree is now degrees), and many configuration options are gone (e.g. radio channel settings, etc). Defaults have not changed significantly, so if you had no changes before, you should need none now.

- Check your old saved APM_PID_gains.h changes (if any) and set options as required. Note that many of the units here have changed, but the default values are the same as before, so if you had no changes you don't need any of these to be set.

If you encounter problems with the transition that need to be fixed, please file an issue.

Read more…

Crash 4 Sure: integrated Autopilot & OSD



A few months earlier, mmormota and I have started to develop a combination of autopilot and OSD. We're made it for FPV purposes mainly, but you may have found it interesting because of the autopilot part. We've just accomplished our first flight tests in this week and the system didn't served it's temporary name: Crash 4 Sure :)
On the picture above you can see as it's going round on a small rectangle course. Here is the video: http://vimeo.com/15128879

Our main goals are:
- Simple installation, we hate the mess of wires.
- Keeping the part count and prices low.
- Make it modular for further expansions, but the basic unit must able to stabilize and bring back the plane safely.

Our unit is most likely a single chip design, based on an STM32 (ARM Cortex M3) controller witch performs all the tasks. This combination of the two systems is quite convenient. For example we can see clearly how the autopilot works, is the orientation correct, because it can display everything on screen real-time.
The sensing of orientation is IMU based, I'm currently using the Razor 6DOF IMU board from Sparkfun and mmormota is using ITG-3200 and BMA-180 breakouts for this task.

The autopilot have the following modes of operation:
-Manual mode
-Stabilized mode (exactly the same as ardupilot's "fly by wire")
-Waypoint mode
-Return to Home

We want to expand it's abilities with automatic takeoff and landing, but first we want to make the current software and features as safe as possible. We were using Raisonance's Ride7 and Rlink for he development, but run into the 32k code limit and have to transfer the project under Eclipse + GDB + OpenOCD + Rlink. Programming and debugging the target still didn't work very well, this environment is terribly complex and hard to configure everything right...
The entire code is in C, using floating point arithmetic everywhere. Now it takes about 10% CPU time to run everything what's related to the autopilot and the OSD consumes about 15% CPU time, so there is still plenty of possibility in the hardware. Ohh, and the core runs on 48MHz instead of the maximal 72MHz.

So this is the whole story in a nutshell, we're want to thank all of YOU who maintain this great community.

Special thanks to William Premerlani for the great papers !

Here are some photos of my equipment:

p1010077ml.jpg


p1010079f.jpg


p1010132b.jpg


p1010122b.jpg


Read more…