I went out this morning to give it a test. I found a nice soft grassy area and set about giving it a test. Immediately upon takeoff the quad would start spinning to the right, slightly at first and then faster and faster. I knew what this meant thanks to doing some quality web browsing - a reversed yaw gyro.
The procedure for fixing this is to set the roll pot to zero, turn on the transmitter, power up the control board, then move the yaw stick. It should then start flashing continuously at a very high rate until you turn the power off. This should fix the problem. (Make sure to put the pot back in the middle)
One easy way to test is to hold the quad over your head with props on - be very careful - and then try to rotate it clockwise or counterclockwise. The quad should really try to fight you. If it feels like there is just a little resistance than try to increase the gain on the yaw pot a little. This thing should honestly feel like it doesn't want you to rotate it! If it's not resisting you'll need to reverse that pot.
To Infinity and Beyond!!!
Not really - after I got the yaw problem fixed I did a few test bounces, then played with the hovering a bit. I was able to get it to hover a few feet off the ground and move it around a bit, but I can still tell something isn't quite right. What I experienced was the following: I could get it off the ground and it wanted to go slightly forward, and I could compensate, but then when I tried to steer it took too long for it to stop steering. That is, when I told it to go right, it would go for quite a ways before it would stop going right. I know it should be crisper on the controls, but I'm not sure what the cause of this is. I'll do a little message board searching and see if I can figure out what is going on.
Getting close to first "real" flight, but not there quite yet.
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