Julian's Posts (4)

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3D Robotics

3DR's Rise and Fall

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Tough Market

“We exited hardware and we exited consumer partly because it was a tough market,” he said. “DJI is an amazing company and lots of people got pounded.

“It was just brutal.”

"We’re a Silicon Valley company and we’re supposed to be doing software and there are Chinese companies that are supposed to be doing hardware.”

Can't say I agree with some of these statements, but alas, this has all played out already. Other interesting tidbits relating to a previously proposed acquisition by DJI are also in the article.

Describes one of the last chapters of the 3DR history book fairly accurately though.

Link: http://www.forbes.com/sites/ryanmac/2016/10/05/3d-robotics-solo-crash-chris-anderson

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3D Robotics

Unmanned Development Team

3689394717?profile=originalHey all, over the past two years I've spent a lot of time browsing the DIYdrones website, unfortunantley not really posting anything, but im ready to finally get back into it. The progress that has been made in these two years is absolutely astonishing, and I plan on getting wet real fast.

I'm now in college now, thank goodness, and i brought my interest in UAVs with me. I am studying Mechanical Engineering at Cooper Union in Manhattan, a small, full tuition paid university that has a pretty great engineering program, but lacks research. I worked my a$$ of this past semester and am finally comfortable with the workload thats required of me. I saw this as my chance to meld my college experience to what i actually want to do in the future, that is design and build UAVs. With that in mind I started the Unmanned Development Team this past semester. We have a pretty good pool of members, spanning a wide range of expertise (programming-through to-machinists) and we are looking to get something off the ground in the coming weeks.
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To attract other possible members, and also in the interest of simplicity and limited airspace in the city, we started with Quads, while concurrently working on a the design of a fixed wing autonomous platform. The quad is much further along with a finalized design and construction underway.

Since the team is basically playing catch up with the industry right now, we saw the Ardupilot as a nice way to ease into things, and will be using the ArdupilotMega with IMU oilpan on both our initial quadrotor and fixed wing platform.

Frame-Solidworks Render:


The main aim of this design was to provide a modular platform that could accomplish a variety of present and future tasks. The center section is almost exclusively assembled with hexagonal standoffs which can be arranged in any way. There is a large amount of clearance on the landing gear to allow for the attachment of a variety of sensors, and there is a modular rail on top to provide the necessary mounting for other top positioned sensors and cameras.

The frame is primarily Aluminum and Garolite to keep weight down as much as possible maximizing payload capacity. The basis of the design for the center section plates comes from a Mikrokopter frame. The majority of the parts are CNCed and any remaining parts are hand milled in our student shop.

Completed Landing Gear:

 

3689394743?profile=originalI should be updating about the UDT regularly now, but if I stop, someone send me an email to tell me to get back on it.

 

Im looking forward to see how much will change in the coming two years...

 

Julian Alvarez

julian.6.alvarez@gmail.com

Mechanical Engineer 2014

 

Our team should have a website soon, among other things, so stay tuned.

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3D Robotics

Guardian 2.0-Fast Response UAV

With UAVs coming into more widespread service in the armed services and all around us everyday, its becoming harder and harder to find and fill specialized niches of operation, and thats where the Guardian comes in. Designed for close convoy support, The Guardian was designed for near instantaneous deployment in contrast to the Raven which requires hand launch. The goal is to have it launch out of a canister mounted on the side of a convoy vehicle, so in ambush situations where hand launch of a support aircraft would be deemed impossible, The Guardian could provide a near instantaneous "eye in the sky."Orginally conceived by me for a 10th grade science fair project last year, I started off with the baics, working mostly just to prove my concept. Pics under my profile......Primary propulsion is a G80 rocket motor, and then once in the air, wings unfold and it becomes a normal electric powered glider. At that point it was only RC with no onboard camera due to "funding" restrictions.In 2007-2008

However this year, working with a Lockheed Martin Engineer as my mentor, I optimized my aircraft by applying math to my design. Wings became high aspect ratio and fins changed shape and grew in area. With design changes made, I moved on to how to actually make it. Utilizing AutoCAD and Solidworks I designed many of my components in 3D to be cut by CNC routing, a vast improvement over the Scroll Saw that I had used in the previous year.In 2008-2009

Other improvements include 99% composite construction for durability and strength. The wings and fins were all covered with lightwight fiberglass cloth and have internal Carbon Fiber stiffeners, a lesson I had learned the hard way after the fins on a flying prototype "dissappeared" when they only had a small carbon support on the leading edge of them.

<</body>As for the electronics, the Guardian will be carrying an autopilot and wireless camera system this year. *knock on wood* I settled on the KX171X 900mHz 500mW Aerial Video System for RangeVideo and placed the order about a month ago, but the components have yet to arrive. So until they do I'm at a stand still except for flight testing which I should be conducting next weekend with high hopes. (videos soon after that) Working with the camera I have the RVOSD as a HUD for FPV flying. Then on autopilot duties I will end up using the RVOSD until my ArduPIiot has arrived and is assembled ;)

Hopefully within the next couple of weeks I'll finish up my testing and post so vids of it in action. After that its science fair in February, and I have my sights set on International Level at INTEL ISEF and try and win back some of the money I have put into this project :)Any feedback and recommendations are graciously welcome, as I will most likely due a continuation next year to finish my highschool research and maybe even take it to college with me...Cheers,Julian
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