Monday, September 21, 2009

Yay! Real Work!

Received the small parts ordered on Sept 9th. Bought an 87 cent PVC pipe at Home Depot. Home Depot has a disturbingly low amount of supplies, lacking most egregiously metric rulers and small metric sized screws. This may require trips to craft stores or require ordering small parts online. Pictures of all received parts were taken. Notes on the parts: The base for the motor has three holes for 1.5mm screws. A drill bit of 1/16th of an inch is sufficiently close to drill holes for the 1.5mm screws. These three holes are not evenly spread out; one on one side, two on the other separated by about 1cm. The wires from the motor will need an adapter; I do not want to solder these directly to wire. As both the motor and the ESC will have up to 15 Amps through them, a high gauge wire will be necessary as well as high gauge adapters and switches. A female connector will be on the battery, so a male connector will be needed for the ESC. A three pin male connection will be attached on the ESC to the motor. Extra wire will be needed to ease connection. A cursory search on the ampacity vs wire gauge suggests that a minimum gauge of 14 (American) is required to handle the current. The propeller blade fits snuggly on the motor shaft, and interlocks well with the supplied locking nut (5mm). A 5mm wrench will be necessary to lock the nuts in place. The control signal from the ESC is a standard three pin connection. While not necessary, a separate breadboard may be used to keep the wires organized when connecting to the Arduino board. An old Arduino NG will be used for testing before the Arduino Mega arrives.

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