UFO-MAN
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UFO-MAN's Discussions

Who sells parachutes?

Started this discussion. Last reply by UFO-MAN Oct 3, 2009. 15 Replies

Modular UAV airframe

Started this discussion. Last reply by Sgt Ric Jun 16, 2009. 4 Replies

 

UFO-MAN's Page

Latest Activity


T3
Krzysztof Bosak commented on UFO-MAN's blog post Invensense IXZ500 gyros flown on UDB2 board with MatrixPilot r466
"Dear all, many of you have claimed that ST micro gyros, or any other, that have 5KHz resonant frequency, are somehow worse than gyros with 30KHz resonant frequency for quadcopter application. However, if we look at the motor RPM, which is say…"
Jul 22, 2013
UFO-MAN posted blog posts
Dec 21, 2011
UFO-MAN commented on Tim Nilson's blog post Assisted FPV: Help to launch a heavy Zephyr
"Nice project. I am going to use UDB for my project by the way.  I am now working on a catapult launcher for a Zephyr. I haven't decided if using a hook on the cat rail or pushing on the rear of the wings with a cradle arragmenet is the…"
Jul 7, 2011
UFO-MAN commented on Robert Beatty's blog post Using the new GoPro firmware for FPV flying on an Arducopter
"Excellent! Thanks for verifying."
Mar 21, 2011
UFO-MAN commented on James Goppert's blog post Quadrotor Digital PID Control System and Dynamics Modelling
"Hi James. Will play a bit with it and probably test without the openscenegraph (replace that with a scope).I havent had much time to test the JSBSim demos unfortunately.   I don't have experience with DLLs and cmake so I cant contribute…"
Mar 21, 2011
UFO-MAN commented on James Goppert's blog post Quadrotor Digital PID Control System and Dynamics Modelling
"Hi again James.   Thanks for the advice regarding the package. I skipped that and ran sciscoslab from the directory where the ini file resides.   I now got it running on my Virtual Box running Ubuntu. However running on the Virtual Box is…"
Mar 20, 2011
UFO-MAN commented on James Goppert's blog post Quadrotor Digital PID Control System and Dynamics Modelling
"Hi, I have installed the scicoslab package and scicos looks lite it starts OK.When I try the procedure for building and installing mavsim described here:https://github.com/openmav/mavsim/wiki/Build-from-Source it compiles OK but when trying to…"
Mar 20, 2011
UFO-MAN commented on Robert Beatty's blog post Using the new GoPro firmware for FPV flying on an Arducopter
"Hi. Have you tested / noticed if there is any latency (delay) when feeding the video from the GoPro? On a normal surveillance type video camera with composite video out, there is no noticeable latency. This makes those cameras very nice to FPV fly…"
Mar 20, 2011

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Please tell us a bit about your UAV interest
Interests: inertial navigation, embedded systems, radio frequency systems, aerodynamics, wing types, aerial photography, fpv, telemetry, remote sensing, jet engines etc.

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UFO-MAN's Blog

In flight tunable gain demonstrator for UDB2 / Matrixpilot

Posted on July 18, 2010 at 5:39am 23 Comments



Hi. I have made some modifications to the MatrixPilot code to do tests on In flight tunable gain. If this is further refined, it will be possible to do tuning of P/D gains on roll, pitch and yaw axis while in flight. The idea is that the gains can be tuned with a spare button on your RC transmitter one after the other (separately) while you fly the plane in stabilized mode. The gain you want to tune is gradually increased until oscillation is seen at max desired airspeed… Continue

Kline Fogleman 3 (KFM3) Polystyrene Foam wing for UDB2 / Matrixpilot UAV

Posted on July 15, 2010 at 2:15pm 5 Comments



Hi. I have finished the first prototype of the lightweight KFM3 wing for my UDB2 / Matrixpilot UAV. The wing is made entirely out of Polystyrene. The benfits of this wing are: wide AOA range, wider stable CG range since lift is produced farther back on the wing surface, no aileron reflex needed so lower aileron reflex drag. I will add vinglets to reduce wingtip vortexes and drag due to vortex leakage out from the rear KFM surfaces. …



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Hand held cutter head for the PWM hotwire controller

Posted on July 15, 2010 at 12:24pm 14 Comments



I have made a USD 2,- handheld cutter head for the PWM controller desribed in my previous blog post. The handheld cutter is nice for trimming off edges and so on. The spring keeps the wire tensioned. The final version don't need a series dropping resistor as the PWM driver stage uses two FETs.



The controller has also has been tested on a vertical setup for cutting spacers to my KFM3 depron… Continue

The "pro edition 5000 Ringnes Pils Arduino hot wire cutter controller" ready for service

Posted on July 10, 2010 at 1:54pm 19 Comments







I have finished my Arduino based pulse width modulated (PWM) hot wire cutter controller. It allows precise USB or analog temperature control of a hot wire of length from 10cm to 2m for use with manual cutters or CNC based cutter. The PSU is extermal…

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Invensense IXZ500 gyros flown on UDB2 board with MatrixPilot r466

Posted on July 6, 2010 at 5:30pm 25 Comments



Just wanted to inform you all that I have sucessfully modded and flown William Premerlani's UDB2 board (red board) with the invensys gryo board designed by Russell Duffy. The AP / stab code was MatrixPilot r466 and the planes were a Fun Jet and an Easystar clone (higher wingloading and with ailerons). …



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Comment Wall (1 comment)

At 11:00pm on October 12, 2009, Vikram said…
can you send me the visual python library program which you developed for uavdevboard. or any hint to do the same

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