Gender
Male
About
Location
Salem, VA
About Me:
Engineer with a passion for flight and building things.
Please tell us a bit about your UAV interest
Have a DJI Phantom for aerial video and setting up a Hawk Sky plane with APM for longer distance and higher payload operations.
Hometown:
Roanoke, VA
Activity Feed
"The power module does not deliver enough amperage to run your servos and could brown out the computer. If your ESC does not have a built in BEC, you will need an external one."
"Your sensor would need to be able to communicate over the protocol https://en.wikipedia.org/wiki/I%C2%B2C. Then you will need to modify the APM code to communicate with the sensor via the protocol."
"Did you range test your Tx? Might be getting interference when you power the motor up. Ask me how I know that one...
Also, be sure if you do a range test that you turn the TX power back up to high, Ask me how I know that one too...
What mode were…"
Also, be sure if you do a range test that you turn the TX power back up to high, Ask me how I know that one too...
What mode were…"
"I remembered that another (maybe invalid) reason for me designing "flap compensation" (or delta hinge, or whatever you want to call it) was because of the way a quad is so different from a standard helo. In a standard helo, the rotor tilts due to…"
"Randy, are you putting any blade twist into your design? I'm not sure how much analysis you've done on your airfoil and AOA, but I've noticed that sometimes the blades have a large incidence angle near the rotor head, and practically none at the…"
"Ah yes you're right about flapping compensation - its even less of a factor than I had stated before. I had momentarily forgotten about the CW vs CCW effects counteracting each other. To me, your main goal for your hub should be to make something…"
"Randy, I was reading back through your blog to try to understand the rest of your design.
While I understand the desire to keep your design simple, I think you and I have different definitions to the word simple. While mechanically your idea of the…"
While I understand the desire to keep your design simple, I think you and I have different definitions to the word simple. While mechanically your idea of the…"
"@John, that's actually a very difficult thing to do when you're talking about gluing two cylindrical objects together. The tolerance of the hole and rod need to be very small in order to have a design gap that is suitable for the glue. It would be…"
"Randy, this is a tricky joint even for FEA to analyze. Since this is a prop wing, why are you calculating it purely as stressed in tension? The whole point of a prop airfoil is to push air perpendicular to its major axis... loading it in bending in…"
"Does it fly well in Cruise mode?
If you haven't used that mode yet, you should verify flight in that mode before trying the auto modes. The auto modes are more complex than the Cruise mode, and the Cruise mode requires a lot more sensors than…"
If you haven't used that mode yet, you should verify flight in that mode before trying the auto modes. The auto modes are more complex than the Cruise mode, and the Cruise mode requires a lot more sensors than…"
"The EKF horz and velocity variences mean that the gyros and accellerometer 'dead reconing' positional data is not matching up to the data obtained from the barometer and gps sensors. From playing your logs, I'm guessing its due to the noise and…"
"Being that the barometer reading should be much more stable than the GPS altitude reading, it would lead me to believe that the stable one (ALT) is based on the barometer (or maybe mixed based on the parameter) and the jumpy one (altASL) would be…"
"I believe that is alt AGL, but I don't recall 100%."
"That altitude is a list of where APM thinks it is. It mixes this value from the baro and GPS based on the following parameter. So - barometer - unless you've messed with this parameter.…"
"I assume you are talking about the RUDDER_MIX parameter?
http://plane.ardupilot.com/wiki/arduplane-parameters/#rudder_mix_ar...
It has to do with creating a "coordinated turn", where APM applies a certain percentage of rudder automatically when…"
http://plane.ardupilot.com/wiki/arduplane-parameters/#rudder_mix_ar...
It has to do with creating a "coordinated turn", where APM applies a certain percentage of rudder automatically when…"
"Try increasing NAVL1_PERIOD by 1 or 2.
Once you have completed the tuning of NAVL1_PERIOD you can add 1 more to NAVL1_PERIOD and then increase NAVL1_DAMPING in increments of 0.05 to get the response you want."
Once you have completed the tuning of NAVL1_PERIOD you can add 1 more to NAVL1_PERIOD and then increase NAVL1_DAMPING in increments of 0.05 to get the response you want."
