About

Gender

Male


Location

Milpitas, CA


About Me:

I build UAVs


Please tell us a bit about your UAV interest

Long-distance


Hometown:

Milpitas, CA


Activity Feed

Rick M commented on Alexander LeBrun's blog post ArduPilot Purple + Skywalker X8 + FPV = Summer Loving
"I certainly don't have any better numbers to give. We crashed our X8 into the SF Bay a long time ago, and haven't tried flying a new one since. But the Pixhawk seems to work well right out of the box. Make sure your manual override is working, and…"
Oct 29, 2015
Rick M replied to Diego Fdez.'s discussion Upgrade a MK into a Arducopter!
"Hi Marco.
With ArduCopter 3.2.1, almost immediately after it boots up, my motors all start running at a medium-low speed, even before arming. They never change speed, and adjusting THR_MIN has no effect (although I'm not sure I successfully adjusted…"
Jul 6, 2015
Rick M posted a discussion
I have an old Mikrokopter with v1.2 BL-CTRL drivers on it. I connected my Pixhawk i2c bus to it (nothing else on the bus), installed ArduCopter 3.2.1 on the Pixhawk, and powered it all up. Nothing special happened, but I get good data from the…
Jul 4, 2015
Rick M replied to Rick M's discussion Pixhawk airspeed sensor, RFD900, and Mikrokopter
"Nope. I bought the RFD900u, which comes with perfect little cables, only to realize it's a 100 mW radio, not a 1 W radio. I'll just have to make my own."
Apr 5, 2014
Rick M posted a discussion
Hi all. I'm trying to find cables for my new Pixhawk autopilot.I don't know why they had to go and change the connectors from the PX4. But the cable I used to have for the RFD900 is a five-conductor cable, and the telemetry ports on the Pixhawk are…
Jan 18, 2014
Rick M posted a discussion
Hi. I need to process log files. I had been told before that .tlog files were based on QGroundControl format, but looking at one, it does not seem to contain valid data. That is, the first 8 bytes do not seem to be a valid timestamp, there is no…
Mar 18, 2013
Rick M commented on Alexander LeBrun's blog post ArduPilot Purple + Skywalker X8 + FPV = Summer Loving
"Ah, so there are fuel cells that use propane directly. I didn't realize that. Wonder where I can score one…
For sure, there will be batteries involved. We might design a complete power management system (I'm an EE by training) to manage charging the…"
Oct 31, 2012
Rick M commented on Alexander LeBrun's blog post ArduPilot Purple + Skywalker X8 + FPV = Summer Loving
"Sure, it's fuel, but it's not internal combustion, with all its attendant issues (weight, noise, vibration, need for a generator, etc.). Plus, the fuel cell is just cooler. Maybe we can put one (or more) of these Horizon Fuel Cells into our plane. I…"
Oct 31, 2012
Rick M commented on Alexander LeBrun's blog post ArduPilot Purple + Skywalker X8 + FPV = Summer Loving
"Simon, I wanted to talk to you about your fuel cell. We're planning a very long endurance flight, and were thinking we'd have to switch to gas. If you can do 10 hours with a fuel cell…we'd like to do 20."
Oct 31, 2012
Rick M commented on Alexander LeBrun's blog post ArduPilot Purple + Skywalker X8 + FPV = Summer Loving
"3.96 kg, if I recall correctly (including a 96 g GoPro HD 2 in the nose, required for CG as well :-) )."
Oct 31, 2012
Rick M commented on Alexander LeBrun's blog post ArduPilot Purple + Skywalker X8 + FPV = Summer Loving
"We also had to put the batteries very far forward. We ended up with all the avionics in the back (except for the telemetry radio and airspeed sensor). We ran power cables pretty far. Didn't have any issues at all, although telemetry range might've…"
Oct 31, 2012
Rick M commented on Alexander LeBrun's blog post ArduPilot Purple + Skywalker X8 + FPV = Summer Loving
"Start with calm wind. The X8 flies very well on default settings."
Oct 30, 2012
Rick M commented on Alexander LeBrun's blog post ArduPilot Purple + Skywalker X8 + FPV = Summer Loving
"Unfortunately, we had grown complacent in our UAV's reliability. We've done a dozen flights without incident, and so weren't paying very close attention to the telemetry showing the gradual descent. Even if we had had a joystick, it's not clear it…"
Oct 9, 2012
Rick M commented on Alexander LeBrun's blog post ArduPilot Purple + Skywalker X8 + FPV = Summer Loving
"We have our batteries very far forward, and even so we have to fly with a GoPro camera in the very front.

Sadly, our UAV decided to fly into SF bay over the weekend. We had telemetry all the way down. We had to buy a cheap inflatable boat and…"
Oct 9, 2012
Rick M commented on Alexander LeBrun's blog post ArduPilot Purple + Skywalker X8 + FPV = Summer Loving
"We're flying our X8 at 4kg total weight, with an E-flite Power 32 motor, Castle ICE 75 Lite ESC, 4x 5000 mAh 4S packs in parallel, 13 x 6 folding prop.
 
We put a GoPro on one wing tip today; it was too much weight, and we did not have enough…"
Aug 12, 2012
Rick M posted a discussion
Hi. I've just installed an APM2 running v2.5 in my plane, replacing the APM1 that was in there before.I've got a 45 A Atto sensor hooked up. In APM Planner v1.2 mav 1.0, I have Monitor set to 4, and I try to set Sensor to 1. But it keeps getting set…
Jul 29, 2012
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