Mark Slater
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Mark Slater's Discussions

Auto Tune Resultant PIDs

Started Aug 12 0 Replies

The I value is a bit suspicious, it flys perfectly (if a little to aggressive)Is this an expected result from Auto Tune ?Continue

Compass Calibration

Started this discussion. Last reply by Mark Slater May 16. 2 Replies

I've calibrated the compass (using methods in various YT videos) several times. Each time I get different offsets for the calibration even though the machine hardware and location remains the same.On…Continue

SBus RX power from Pixhawk

Started this discussion. Last reply by Michael Burmeister Apr 22. 2 Replies

I'm not certain this is the correct place for this question but here goes..After a crash and identified ESC fault All ESC have been replaced on the Octo.The replacement ESC are Opto so the pixhawk is…Continue

Unusual Crash after updating to 3.3

Started this discussion. Last reply by Mark Slater Apr 17. 2 Replies

First field trip since update.After doing calibrations in the field first flight was going well until about a minute in. I was in loiter hovering level, just tilting the camera down when the back of…Continue

Tags: v3.3, Crash

 

Mark Slater's Page

Latest Activity

Mark Slater posted a discussion

Auto Tune Resultant PIDs

The I value is a bit suspicious, it flys perfectly (if a little to aggressive)Is this an expected result from Auto Tune ?See More
Aug 12
Mark Slater replied to Mark Slater's discussion Compass Calibration
"Logs Att. Thanks"
May 16
Michael Burmeister replied to Mark Slater's discussion Compass Calibration
"Compass cal will vary by as much as +- 50 so I would not put to much stock in that. For some reason the internal and external compass are deviating from each other possible causing your issue. If you could provide a log of the issue that may help. "
May 15
Mark Slater posted a discussion

Compass Calibration

I've calibrated the compass (using methods in various YT videos) several times. Each time I get different offsets for the calibration even though the machine hardware and location remains the same.On every flight I get EKF warning of compass difference.I have not done a compass MOT because I read somewhere that it shouldn't be done. But I can't find that text anywhere now.What is the best method to get the compass calibrated correctly ?See More
May 15
Mark Slater replied to Nick Moody's discussion Tarot T4-3D Gimbal using Pixhawk SBUS out? (or other options?)
"Have the same setup - Can't get the T4-3d to see sbus channels greater than CH9   Does the pix just replicate the input sbus signal or is it more intelligent Just looking for Docs now ...."
May 6
Michael Burmeister replied to Mark Slater's discussion SBus RX power from Pixhawk
"That's funny.  I have an X8R just plugging into the RC in port and it's powered just fine. I use a 4 in 1 ESC with nothing plugged into the plus side of the rail. Must have blown the fuse. "
Apr 22
Mark Slater posted a discussion

SBus RX power from Pixhawk

I'm not certain this is the correct place for this question but here goes..After a crash and identified ESC fault All ESC have been replaced on the Octo.The replacement ESC are Opto so the pixhawk is being powered purely by the pixhawk power module.My RX is a futaba Sbus - It's plugged in the RC port.When I connect USB everything powers up as expected including the RX and it works and calibrates however when I remove USB the RX power is lost - Everything else is fine.Is there a software…See More
Apr 22
Mark Slater replied to Mark Slater's discussion Unusual Crash after updating to 3.3
"You can see RC out on the Tlog - I've ordered replacement ESC's - looks very much like ESC 8 went bad."
Apr 17
Ivan R replied to Mark Slater's discussion Unusual Crash after updating to 3.3
"looks like you had a mechanical issue of some sort most likely motor or ESC problem, you arent logging RCOUT so its difficult to tell....check all your electronics and power systems, there is nothing indicating anything wrong with AC3.3"
Apr 11
Mark Slater posted a discussion

Unusual Crash after updating to 3.3

First field trip since update.After doing calibrations in the field first flight was going well until about a minute in. I was in loiter hovering level, just tilting the camera down when the back of the Octocopter dipped violently, lost lots of height and hit the ground fairly hard.No damage so reset and re-try in stabalise - same problem after 30 seconds.I can't find any mechanical problems - There's much to see in the logs but I can't quite work out what happened. Some interesting EKF…See More
Apr 9
Mark Slater replied to MR's discussion Arducopter V3.1.5. hexa shutdown mid-flight (log included)
"Logs show a power failure to all motors - RCoutput is increased but no response in altitude - My interpretation would be main power failure."
Aug 15, 2015
Mark Slater replied to MR's discussion Expensive crash on X8 due sudden uncontrolled YAW (Pictures + logs added)
"Looking further I can see the log file is corrupt - please post the original BIN file."
Aug 15, 2015
Mark Slater replied to MR's discussion Expensive crash on X8 due sudden uncontrolled YAW (Pictures + logs added)
"However - there are values in the RAW data for RCOU(6) - might be a MP graph fault."
Aug 15, 2015
Mark Slater replied to MR's discussion Expensive crash on X8 due sudden uncontrolled YAW (Pictures + logs added)
"RCOU data for output channel 6 shows zero output to channel 6 through the whole flight"
Aug 15, 2015
Mark Slater replied to MR's discussion Expensive crash on X8 due sudden uncontrolled YAW (Pictures + logs added)
"It seems obvious from the log that there was a mechanical failure on one of the motors."
Aug 15, 2015
Ben replied to Mark Slater's discussion Would someone take a look at my logs please
"Have you tried recalibrating your brushless gimbal controller down on the P setting? I know if the P is too high it can caus those vibrations. From your flight controller the IMU looks fine, also how are you powering your bgc board? straight from…"
Jun 10, 2015

Profile Information

About Me:
I'm a heli flyer but getting into Quad/Hex in a big way. Been flying 3 years and work in the computer industry
Please tell us a bit about your UAV interest
I'm working with NHP to produce an all carbon Quad/Hex/Oct frame to be supplied with a fully configured Ardu
Hometown:
Altrincham

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