Hi there welcome back, 

Here is a little picture of the first version of my quad hybrid projet

It's a version to allow "Maxime carrier" to crash it 1 or 2 time before it's broke XD.

The design of the 2 rotating propeler is pending until i got the missing part. beteween 2…

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All,

I just wanted to share a design we have been working on for the FPV/DIY UAV crowd.

 

Our goal was to design something relatively rugged, easy to build/use and affordable.  And since we CNC hot wire cut foam cores for a living it needed to be manufacturable with our current…

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For their "Problemsolving and design" project, 2nd year engineeringstudents of the Katholic university of Leuven (Belgium) designed and built multicopters out of the departments waste materials stream.  The electronics were given and the focus of the project was on frame materials and design.  Therefore they only got a limited budget of 20€ for the…

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We have been working lately with Jason.J and few other people to create first real Open Source ESC that is based on STM32 RISC processors. Just moment a go courier delivered first PCBs to my desk here at jDrones and we are thrilled to see how they start perform after assembly has done for these. 

OpenESC pcbs are 35 x 25mm and 4 layers PCBs. Power range…

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ARIA and ReAllocate.org are seeking an UAV expert interested in the development of an UAS (an Unmanned Aerial System = UAV + Base station) for a project at the Burning Man festival.  For this project, we will be delivering a system that is capable of tracking a person (via GPS enables tracker) and…

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ArkToolbox is a toolbox for ScicosLab/ XCos (similar to Matlab simulink, but free). ArkToolbox is useful for drone control design, simulation, and testing and is compatible with FlightGear, MAVLink (QGroundControl/ArduPilotMega), and the JSBSim Trimming GUI software. This creates a completely open source toolchain for developing aircraft models, finding…

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I just discovered CircuitLab, a online electronics simulator. I haven't had time to play much with it yet, but it looks very promising from what I have seen so far. Especially considering that they just launched the site.

Above: Concept for an "abstract layout" workflow that could reconcile open source circuit designs with "closed" process design rules and libraries. First the designer would generate an abstract layout by instancing cells for various components. The above example shows a 2-input AND gate,…

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Above: Simple circuit using a transistor (an N-channel MOSFET), a resistor, and a capacitor. Left shows the schematic, right shows the layout.

Following discussions from a previous…

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Hello Drone operators!

I am writing this post to inform the world of my intention to build a UAV. I will be building a scale version of the community UAV design found…

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Let me just start saying that I like overkill on just about every project i do but i also am frugal as hell and need to keep costs down, i know so counter productive to someone who likes overkill HEHE. Continue

First set of proto distribution PCB's are out from manufacturing company and ArduCopter core team around world are waiting to receive

their packets for proto testing.



Ok then how to build it and connect it to your electronics??



First users need to put some… Continue

As most of you know, the booms/arms are T-Rex 600 tail booms. I've cut the booms to 33cm and connected them to a 4-way 1/2" PVC connector (from Lowes). Screw holes are drilled 7mm from the edge of PVC connector. The body, which will hold the Arduino Duemilanove and Aeroquad 1.7 shield (amongst other things), is a simple 7" x 3" project box from RadioShack. To connect everything, so far I've decided to use 6-32 threads with lock nut washers - each lock nut has a rubber washer after it to help… Continue

That Post Title's pretty much it in a vital new treasure-chestnut shell .....



Imagine/Visualize:



[Top portion of] Seattle Space Needle "Airframe" in scale-model form



New extended range fuel cell, liquid hydrogen and 4-electric quad-motor "Powerplant" is in the middle of ....



That is all



Jack Frost Nippin' @ Your LH & LOX Nose ...



Help me honor the memory of our 35th U.S. President John F. Kennedy, who was very much alive… Continue

I am new to the DIY Drones community and UAVs in general but have a lot of experience producing durable parts made directly from CAD data. When considering the DIY Drones site I noticed there is some great resources for electronic components but what if someone wants to design and produce a stellar airframe or other custom parts? Has anyone dabbled in CAD and considered producing their own parts in nylon without a mold???



My company NWUAV (www.nwuav.com) has produced custom airframes… Continue

How does an original model airplane design get created?



I've always wanted to read a book that answered that question. A book that takes me by the hand and shows me how it's really done. One that tells me not just the what and the how, but also the all important why. Since nobody had ever written such a book, I decided I had to do it myself. This is that book.



Experience firsthand the joys of building and flying your very own model airplane design. Put into practice the… Continue

Build and fly your very own model airplane design. Using clear explanations, you will learn important design trade-offs and how to choose among them. The latest research and techniques are discussed using easy to understand language.



You will discover:

* The special challenges faced by the smaller models and how to overcome them.

* How to choose the right material for each part of the airplane.

* Easy rules for selecting the right power system, gas or electric.

*… Continue

Ever heard of "Moment of Inertia"? Neither had I, but it's quite simple really.



Object with the most of it's weight at the center of it's gravity is easier to rotate than one with the weight on the outer edges. So why put all the electronics and batteries in the center under the wing. By distributing the weight to the wings, should create a platform that has steadier flight characteristics.



More on this and a few pictures in my… Continue