Ok, I have completed the Trex 550L Dominator build and posted a couple of pictures below.
Overall the build went pretty well. The manual was OK but I primarily used the videos from Jeff Fassbinder. Overall they are pretty good. As I said in my earlier post I don't normally locktite anything until I get it assembled. I did get all of the wiring inside the frame, but it was very tight.
Some general notes from the build:
1. The motor installation is a bit tight in the frame so I simply removed the frame spacer support just in front of the motor and it went in really smooth. (hence why I don't locktite everything.)
2. Fortunately, when I prepared the servos for installation, I used a servo tester to get them at neutral and then installed the servo horns as close to 90 degrees from their final installation. In the video, Jeff discovers he failed to do that and had to go back several steps and redo this after he already got the swash level done.
3. The GPRO software is very easy to use and walked through the process quickly. You even use the GPRO software to get the swash plate level. Additionally, the software helps you get the zero degree pitch at center stick as well as the matching positive and negative values.
4. The software parameters are all completely configurable but I opted for the 'beginner' settings to get things started for my first flight.
I have ordered the bluetooth adapter that works with most mobile devices so changes at the field should be very easy.
Hence, I took it for its first flight and it lifted off with a straight line throttle curve for Normal surprisingly easy and was level and stable right off the bat.
I had a small, slow tail wag and and did some research and a likely problem is not enough head speed. I changed the normal throttle curve to what's spelled in the manual and increased my Gyro gain to 80% and the wag seems to have gone.
Overall very pleased with the build and my first hover flights.
USAF_Ret
