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Showing posts with the label Soldering

Quadrocopter - Part 10 - I find your lack of faith disturbing.

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It is possible i might be overdoing it with the Star Wars references. If you find a better name for the next post (which will probably be the first flight) let me know. I worked the whole of last Sunday and finally got the model now ready. So here it is. This time the whole model weighs only 1396 grams. A 19% improvement on the old model.  The motor (EMAX CF2822) along with the propeller (8"x4")  and the bullet connectors (3.5 mm)  The Quad Control Board -  http://www.hobbyking.com/hobbycity/store/uh_viewItem.asp?idProduct=19534  Luke !!! Battery - Tied down with Velcro.  Pictures by Rahul Krishna Upadhayaya. Link to more posts on the  Quadrocopter.

Quadrocopter - Part 9 - A New Hope

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There have not been any updates from my side on the quadrocopter for the past 6 months. This is partly because i was working on other stuff but mainly because i got lazy (really really lazy). So one fine day about 2 weeks ago i decided that i have to finish this project. I ordered a quadrocopter control board as i was getting one at a very reasonable price (details later) and i did not have the time to build one for myself (as earlier planned - i might do this sometime later). I did make some changes to the design changes.  Firstly this time i went for an entirely wood construction instead of the aluminium and acrylic combination(what the hell was i thinking??). There are a few reasons for this. It is easier to work with than aluminium. Wood reduces the vibrations of the motors. Wood is cheaper (was able to get material for building 4 quadrocopter for 280 bucks !!!!) and most importantly it available near my house unlike aluminum rods (laziness FTW)....

Quadrocopter - Part 8 - Failure

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The quadrocopter project was going fine till i decided to start soldering the circuit for the flight controller. I've burnt my hand countless times while soldering - frankly speaking im lousy at it - but this was worse. I was powering the circuit from the BEC (Battery Elimination Circuit) on one of my ESCs. As it happens due to the genius of my soldering technique i accidentally shorted the GND and the VCC of the BEC together and as soon as i connected the battery there was a crack sound and the inevitable distruction of the ESC. Thankfully we did have a spare ESC at home that was being used in a hovercraft project that my flatmate was working on so that got sorted. The Burnt-Up ESC. After that things got worse. The maiden test flight - not conducted by me - of the quadrocopter (done just by connecting the ESC's to the RF receiver with no gyros and no control circuitry) did not go well ...