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Testing the Low Pass Filter

mattmc — Tue, 30 Apr 2013 11:42:16 +0000

Testing the Foxtechfpv 1.4GHz Low Pass Filter http://www.foxtechfpv.com/1400mhz-low-pass-filter-p-439.html The aim of this experiment was to quantify the signal attenuation of the low pass filter across various frequecies. Ideally I would have produced a frequency response plot of the LPF from 0 to 3GHz but due to limitations with the equipment, I could only test in [...]

1.3GHz Low Pass Filter – The Case For

mattmc — Sat, 06 Apr 2013 16:48:37 +0000

Today I flew the PVC quad on another shakedown flight (after fiddling with the configuration via the GCS). I was flying over a fairly large oval, not very high but on the far side from where I was sitting when all motors lost power. I believe failsafe on my Futaba kicked in. You can [...]

Tuning the CC3D – Step 1

mattmc — Wed, 13 Feb 2013 12:11:11 +0000

I haven't had the chance to actually go fly the YAPVCBQ since the somewhat unsuccessful maiden so the next best thing is to tune it indoors and I'm learning heaps. For example, the first time I fired it up on the line, only motors 1 & 3 were turning consistently. First thought was I [...]

Cutting the shaft on the NTM Prop Drive 28-26 1350KV / 310W

mattmc — Wed, 12 Dec 2012 13:28:04 +0000

For the PVC 'BattleQuad' I'm building I ordered four 'NTM Prop Drive 28-26 1350KV / 310W' motors as I've used them before on a Hex 550 build and am quite happy with them. These motors are a little different in that you have to buy a seperate accessories pack to get a mount for the [...]

PVC Quad build

mattmc — Sun, 02 Dec 2012 05:46:14 +0000

PVC Quad, a set on Flickr. The PVC quad was inspired by HelliYea's Battlequad post over on the Openpilot forums (http://forums.openpilot.org/topic/13503-battlequad/page__hl__%20battlequad). I've seen it fly (and crash) and it shows great flight capability along with rugged frame construction. The 15mm PVC pipe is straight from the local hardware store. RCTimer motors, KK2.0 flight controller and [...]

GoPro Hero 2 firmware downgrade to v124

mattmc — Wed, 07 Nov 2012 11:48:19 +0000

After applying the latest firmware update to enable Protune mode I encountered a number of problems; Occasionally on startup the camera would hang showing the video icon and nothing else. In Protune video mode, the camera would not create a second video file after reaching a maximum file size of 1.85GB on the first file. [...]

Quadcopter Parts List

mattmc — Sun, 28 Oct 2012 13:24:10 +0000

I was asked recently what would be a good way to start in multirotors. The first question was "A tri-copter must be simpler and easier because there's only 3 motors?". I disagree. I've built quite a few tricopters and on each one explored a different way of building the yaw control mechanism on the tail [...]

Imitation DJI F550 build

mattmc — Thu, 18 Oct 2012 12:38:28 +0000

Parts used in this build; H550 V2 Glass Fiber Hexcopter Frame 550mm – Integrated PCB Version 9 Mode Multi Colour/Multi Function LED strip with Control Unit Hobbyking KK2.0 Multi-rotor LCD Flight Control Board NTM Prop Drive Series 28-26A 1200kv / 250w NTM Prop Drive 28 Series Accessory Pack TURNIGY Plush 30amp Speed Controller Slow Fly [...]

Flips & Rolls with the Naza F450 Quad

mattmc — Tue, 07 Aug 2012 13:15:40 +0000

This video shows my first loops and rolls with the DJI Naza F450 Quad. I did at least one in every direction (left, right, forwards and backwards). The entire flight was flown via FPV which I found much easier for these moves. Flying line of sight at this height and distance makes it hard to [...]

DJI Naza F450 Gain Settings – Flips and rolls

mattmc — Tue, 07 Aug 2012 11:14:47 +0000

The settings I've been using up until this point were; Basic Gain: Pitch: 150, Roll 150, Yaw 100, Vertical 120 Attitude Gain: Pitch 70, Roll 70 The problem I found with these settings was under heavy acceleration, the quad would oscillate. The same oscillation would occur with high yaw application and when descending from height. [...]