So I have had this little guy for quite some time now and have reached the point where I need to pull his guts out and use them in another project. However before doing so I thought I would document him here as a memorial for all the great times we have had together.
The 'Ferrero Rocket' gets his name from the Ferrero Rocher box he was created from and the speedyness he had thanks to his tamiya twin gearbox.
*warning - all the pictures were taken on my phone*
The box shown to the left is where it all started. Browsing through the cupboard one day I saw these delicious chocolates and the awesome box they came in. I was unable to contain my curiousity of using the box for a robot and removed all the choclates immediatly and ran to my room with the new find.
The twin tamiya gearbox shown right. It was an impulse buy at the local hobby shop as I had seen it being used for robot projects before. However after using it I can say that the motors are pretty damn terrible. Someone mentioned it to me before I forget who it was. But to whoever it was, I now know what you mean. The motors are sooooo inefficient, they drained the battery like a kid drinking a milkshake. The gearbox itself is pretty good however and with a change of motors, it would be all in all a pretty great thing.
The actual construction process wasn't too difficult. I knew where I wanted things to go, and I had all the right parts. The only thing I found difficult with the box is that it was very brittle. Drilling holes for the HC-SR04 was a slow process, and that still wasn't enough to prevent cracking to occur.
Here you can see the little guy assembled. His guts fit very neatly inside. The internals are an Arduino Uno with a Prototyping shield, 9V battery for the Arduino and 4.8V for the motors (in the background). On top of the mini breadboard is the L293D motor driver IC which I have been using a lot lately.
There isn't much else to say really. He has taken a fair few knocks from my little sister and has even suffered from a few attempted suicides. But we stuck togehter and it all worked out good in the end. He succesfully served his puprose and must now move on.
Now one thing I forgot to mention is that I had a lot of spare crappy insulation tape that I had no idea what to do with. To prevent someone cutting themsleves on the cracks in the plastic I thought it might be a good idea to cover them up with the tape, and so this 'aswesome paint job' was born.