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paul riseborough
  • Victoria
  • Australia
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paul riseborough's Groups

paul riseborough's Discussions

Batch of faulty 3DR Pitot/Static probes - check yours for leaks

Started this discussion. Last reply by Peter Wlodarczyk Jun 23, 2013. 1 Reply

Two out of three of the 3DR pitor/static probes I have purchased have had significant air leaks where the internal tube joins to the machined aluminium end. In the first instance this resulted in a…Continue

Repeated mid-air APM reboot - only happens at one flying site - possible weather radar interference

Started this discussion. Last reply by paul riseborough Apr 21, 2013. 13 Replies

I have three flying sites that I use depending on weather and availability. My primary flying site is located only 800 meters from a weather radar and I have been having repeated in-air reboots when…Continue

Please help - 3DR USB radio will upload firmware but won't enter command mode

Started this discussion. Last reply by Marcin Krawczyk May 31, 2013. 7 Replies

I have a 3DR 915 MHz v1.1 USB interface radio that will not enter command mode using the 3DR radio config tool and does not respond to any commands. The unit was communicating whenfirst received, but…Continue

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paul riseborough's Page

Latest Activity


Developer
paul riseborough commented on Chris Anderson's blog post FAA announces investigation into drone use over Denver 420 rally
"Legal or not, if that thing was flown over peoples heads, it's an unsafe act. It is NOT a high integrity system."
10 hours ago

Developer
paul riseborough replied to Adam Eng.'s discussion flying continuos circuits until battery voltage low in the group ArduPlane User Group
"I find them useful - the last thing I want a model to do when it runs low on battery is to loiter over where I armed it (eg the flying club runway or pit area). Rally points let me specify a deconflicted area for it to return to. "
20 hours ago

Developer
paul riseborough replied to Finnius's discussion Loiter Not Work
Apr 11

Developer
paul riseborough replied to Frejus's discussion Can anyone explain those new designs ? Purely aesthetics or indeed more efficient ? in the group ArduPlane User Group
"Pros: Tractor props are quieter and more efficient than pusher props Different payload/avionics modules can be swapped over quickly if they are set up with the right joiner design They can be set up with less throttle to pitch coupling Elevator is…"
Apr 10

Developer
paul riseborough commented on Graham Dyer's blog post Another 100km+ flight
"I don't think airspeed sensing makes much difference. It is the result of an interaction between a number of elements which is why it varies so much between setups. The way that APM flies to a demanded pitch angle is the underlying issue…"
Feb 15

Developer
paul riseborough commented on Graham Dyer's blog post Another 100km+ flight
"Most users find it to be OK for what they are doing. For some reason I haven't been able to work out yet, These errors seen to be larger for Graham's setup than for most users. For example I helped a colleague get his boxer going with an…"
Feb 15

Developer
paul riseborough commented on Graham Dyer's blog post Another 100km+ flight
"Graham - having looked at your logs in more detail, I don't believe nose drop due to bank is the issue here. Watching it through the HUD was the most instructive as it shows significant inconsistencies between the height response and pitch…"
Feb 14

Developer
paul riseborough commented on Graham Dyer's blog post Another 100km+ flight
"I don't believe the altitude oscillation seen by Graham to be an inherent property of the TECS controller. The attached link is to a log file from my Skywalker X-5 (not a good flying model) and PA Addiction X (a very good flyer) shows the…"
Feb 14

Developer
paul riseborough commented on Graham Dyer's blog post Another 100km+ flight
"Graham - the amount of 'yank per bank' is controlled by PTCH2SRV_RLL. Increase it if you are not getting enough. I am thinking of increasing the recommended range in the tuning guide based on feedback from users."
Feb 13

Developer
paul riseborough commented on Graham Dyer's blog post Another 100km+ flight
"Height and speed control is all about compromise. If height tracking was the driving requirement, then you would a) tune the pitch loop with the largest D gain, largest P gain and smallest TAU possible without excessive overshoot or limit cycling b)…"
Feb 13

Developer
paul riseborough commented on Graham Dyer's blog post Another 100km+ flight
"Sorry for the typo in my previous post - what I meant to say is that if TECS_SPDWEIGHT is set to 0, pitch (not throttle) will be entirely set based on potential energy (height) error."
Feb 13

Developer
paul riseborough commented on Graham Dyer's blog post Another 100km+ flight
"TECS uses throttle to control total energy (height +speed) The TECS algorithm will use pitch 100% to control height IF TECS_SPDWEIGHT is set to 0. Throttle will then be set entirely based on potential energy (height error). IF TECS_SPDWEIGHT is set…"
Feb 13

Developer
paul riseborough replied to Michael Day's discussion Logs of death spiral
"Have you studied the block diagrams at the end of the wiki yet?"
Nov 12, 2013

Developer
paul riseborough replied to Antonio Alfaro's discussion X8 take-off using catapult in the group ArduPlane User Group
"Could you please do the following test and let me know the results. a) power up your plane, but either disconnect the esc or motor wires so the motor won't start b) change TKOFF_THR_MINACC to a small number like 1, and change LOG_BITMASK…"
Nov 9, 2013

Developer
paul riseborough replied to Antonio Alfaro's discussion X8 take-off using catapult in the group ArduPlane User Group
"Can you post your parameter file? - What you're describing doesn't sound like intended behaviour, so I'll have a look into it. "
Nov 8, 2013

Developer
paul riseborough replied to Antonio Alfaro's discussion X8 take-off using catapult in the group ArduPlane User Group
"Oh OK. I don't use the throttle suppress in my X-8, as I want to start with zero throttle. If you want to start with zero throttle, then try  THR_SUPP_MAN = 0."
Nov 7, 2013

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