Jun
12
2013
0

Soldering ESCs

I’m using 30 Amp hobby King ESCs in my Quad Copter.

They each come with five bare ends which need connectors soldered to them.

Here’s a picture showing the result of about two hours of soldering and heat shrinking.

qc_escs

I’ve cut the DC power supply leads a little shorter so their length is perfect for my application.

Jun
10
2013
0

Fun with Loctite and Brushless Motors

It turns out four motors is four times the work of one… and four times the Loctite.

I’ve attached the spinners to the motors and the motors to the motor mounts using Loctite Threadlocker Red 271. This should stop any chance of the screws vibrating loose, but also has the downside of being very difficult to undo.

Overall, everything is starting to come together.

qc_motor

qc_arm

Jun
09
2013
2

Quadcopter frame assembled

I’ve finished assembling the Quadcopter frame. The instructions are a little cryptic and I have plenty of screws missing over, but I’m confident it will work.

hal_assembled

The build quality is reasonable for the price tag.

hal_assembled2

I’m still waiting on a number of other items to arrive before the main assembly can start.

Jun
05
2013
0

Quadcopter frame arrives

My Quadcopter frame arrived in the mail today.

It’s the Turnigy H.A.L Quadcopter from HobbyKing.

I hope to start assembling it over the next day.

Jun
04
2013
0

Autopilot parts arrive

The first package of parts for my Quadcopter have arrived.

I ordered these parts from 3D Robotics.

The picture is of the two Telemetry Transceivers, Power Module, Ardupilot Mega 2.5 and Ublox GPS

May
29
2013
0

Quadcopter Project

It’s been way too long since my last post – I’ve been busy looking after my bees, working on the house, doing development work and obviously, my day job.

I’ve taken the plunge and started to order the parts to build a fully Autonomous Quadcopter.

More posts will follow as parts arrive.

Nov
08
2009
0

My first "real" attempt at Kite Aerial Photography (KAP)

Although I’ve done my bit of Aerial Photography, I’ve always wanted to give Kite Aerial Photography (KAP) a go.

Back in September I started to acquire a few bits. Since the main component was a kite, I decided I’d start with this first. After a lot of research, I decided that a Delta Conyne was the best bet. This particular kite is a hybrid of a standard triangle shaped delta and a box kite. Most KAPpers report that it has the lifting power of a Delta kite with the stability and high flight angle (ie: the string is almost vertical) of a box kite.

The next item to buy or build is a mount for the camera. I decided on a picavet as it’s rather simple to build and seems to be a favourite for KAPpers. The picavet I’ve made is very simple at the moment. It’s made of two 150mm long pieces of 1/4″x1/16″ aluminium with fishing swivels for pulleys – Not ideal by a long shot, but a good starting point to check the “theory is correct”.

I got one of my trusty canon IXUS SD1000 – The same model as I use for my 3D Camera. I installed the latest version of CHDK and wrote a simple script to take a photo every five seconds.

On Saturday I shot down to Victoria Park. It was far from ideal conditions as there was little wind and things were being set up for the Guy Fawkes fireworks display.

I finally got the kite above the treeline and flying stable. I clipped on my picavet, turned on the camera and sent it skyward. By this point, it was half past four and already rather dark. Even an ISO of 800 wasn’t enough to stop the blur.

Here are a few images:

It was far too dark for the camera to be using 1/15th of a second for the shutter speed.

It was far too dark for the camera to be using 1/15th of a second for the shutter speed.


Yes, thats me with my reflective sneakers!

Yes, thats me with my reflective sneakers!


A random photo of the fence around the fireworks display.  This was the only clear photo I got.

A random photo of the fence around the fireworks display. This was the only still photo I got.

Written by John in: Aerial Photography,General Randomness |
Aug
10
2009
0

Radio control interface to CHDK

I’ve previously blogged about CHDK. It is the “Canon Hackers Development Kit” and is alternative firmware for Canon digital cameras. It never actually overwrites the camera firmware and can give a camera many extra features not available in the default firmware.

For radio control applications, specifically aerial photography, there is a real bonus in being able to control a camera to take photos from the radio control unit.

CHDK will allow your camera to take photos when 5volts is supplied on the +ve pin of a USB cable. I’ll be using this feature to show you a simple way of interfacing a channel from your RC gear to the camera.
(more…)

Written by John in: Aerial Photography |