Andy Theimer
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  • Boulder, CO
  • United States
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Flight problems after being dormant

Started this discussion. Last reply by Richard Boyhan Apr 5. 1 Reply

I've been flying for a while but have not had much time of late so I left my APM 2.5, 2.9 firmware 3dr quad sitting on the shelf for several months.  I took it out to fly the other day and on doing…Continue

Sonar EZ-4 w/ recommended filter cable question

Started Sep 7, 2013 0 Replies

As part of my 3.x / apm 2.5 rebuild I upgraded my sonar to the recommended EZ-4 and built the recommended filter cable.  I've read lots of posts and the ideal result appears to be a nice smooth graph…Continue

Tags: sonar

Rebuilding My 3DR Quad + APM 2.5 for 3.x Software

Started this discussion. Last reply by Richard Boyhan Aug 25, 2013. 1 Reply

I purchased a 3DR quad kit and APM 2.5 in April of 2012, built and flew on/off over the past year but have never had the time and persistance to go for fully autonomous flight.  Over the past weeks…Continue

Tags: frame, 3dr, rebuild

Stock 3DR Quad + 850k Motors + 10x45 props

Started this discussion. Last reply by Richard Boyhan Dec 3, 2012. 1 Reply

I'm flying a fairly stock 3DR quad, I had my first tree encounter. Too much time in simulator, and didn't uncheck the Simple mode checkbox so I I lost orientation... punched RTL but she clipped a…Continue

Tags: 1047, 10x47, 2.5m, apm, props

 

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Latest Activity


T3
Richard Boyhan replied to Andy Theimer's discussion Flight problems after being dormant
"Frist try erasing or reseting and then reload your firmware. Make sure to save your parameter file and do a compare to only reload only what you need. If this does not fix it, try turning on motor logging and see if one motor is causing your issue.…"
Apr 5
Andy Theimer posted a discussion

Flight problems after being dormant

I've been flying for a while but have not had much time of late so I left my APM 2.5, 2.9 firmware 3dr quad sitting on the shelf for several months.  I took it out to fly the other day and on doing my typical preflight I noticed that the quad wants to start rotating to the right as soon as it gets enough power to leave the ground.  I have aborted flights, upgraded firmware, re-calibrated but no luck.  Just at the point of takeoff the quad starts rotating to the right.  I did notice on my last…See More
Apr 4
Carlos Niño replied to Andy Theimer's discussion HOW TO: Windows 8 Mission Planner / Arduino Drivers
"Thank you very much for the solution!"
Mar 23
Tony Fabris replied to Andy Theimer's discussion HOW TO: Windows 8 Mission Planner / Arduino Drivers
"Sorry to bring up a years-old thread, but I found this advice here, with these drivers for the Arduino on Win8, via web searches and from a link from the Arduino forums. Someone else might follow those same links and do the things suggested here in…"
Mar 3
Andy Theimer posted a discussion

Sonar EZ-4 w/ recommended filter cable question

As part of my 3.x / apm 2.5 rebuild I upgraded my sonar to the recommended EZ-4 and built the recommended filter cable.  I've read lots of posts and the ideal result appears to be a nice smooth graph that is very close to the Baro Alt and I get the feeling I'm not done yet :)  Here are the two log graphs from a before the shielded cable and after.  Before shielded cable: (red = sonar, green - baro)…See More
Sep 7, 2013

T3
Richard Boyhan replied to Andy Theimer's discussion Rebuilding My 3DR Quad + APM 2.5 for 3.x Software
"Great post. Thanks for sharing."
Aug 25, 2013
Andy Theimer posted a discussion

Rebuilding My 3DR Quad + APM 2.5 for 3.x Software

I purchased a 3DR quad kit and APM 2.5 in April of 2012, built and flew on/off over the past year but have never had the time and persistance to go for fully autonomous flight.  Over the past weeks I've found the time to rebuild my quad *mostly* from the ground up in order to handle the latest software and associated vibration, compass, and PPM improvements from the past 6 months.  I've pieced together what I needed to do from all over the forum and wiki and it's amazing how much better and…See More
Aug 25, 2013
Andy Theimer replied to Miles Smith's discussion Noob Prop Type Question
"I feel your pain, I've been trying to learn the ins and outs o the props and power systems lately and its hard to ask intelligent questions(less likely to get answered).  I'll give you my conclusions thus far but I'd invite…"
Dec 21, 2012
Andy Theimer replied to Saurabh Srivastava's discussion Decend Rate - ArduCopter 2.8.1
"From what I've seen Sonar is a no-brainer $20 if you really want to auto-land..  Since I"ve added it RTL and auto-land have worked very well.  "
Dec 21, 2012
Andy Theimer replied to Wolfgang Alders's discussion How do I power the APM board from my battery?
"I ordered one of these a couple weeks ago, http://store.diydrones.com/APM_Power_Module_p/br-apmpwr.htm Very happy with it, not only does it remove a potential fail-point it gives me battery monitoring in MP"
Dec 21, 2012
Andy Theimer replied to Amir Habibi's discussion Ardupilot 2.5 quad-copter is not flying
"With respect to the lean on takeoff... I had similar issues at first... Play with the Level command in the MP, (or hold stick left for 15s in the field)... You want to make REALLY REALLY sure you are on a level surface when you do this though... It…"
Dec 14, 2012

T3
Richard Boyhan replied to Andy Theimer's discussion Stock 3DR Quad + 850k Motors + 10x45 props
"I assume that you have all 4 props the same and that you are not using 47 and 45's together?  Can you hold altitude in stabilize mode?  If yes, then the Quad should work in ALT HOLD and LOITER.  Work on getting ALT HOLD to work…"
Dec 3, 2012
Andy Theimer posted a discussion

Stock 3DR Quad + 850k Motors + 10x45 props

I'm flying a fairly stock 3DR quad, I had my first tree encounter. Too much time in simulator, and didn't uncheck the Simple mode checkbox so I I lost orientation... punched RTL but she clipped a tree branch on her way home.Anyways, it appears the stock 10x47 props that come with the quad kit are extremely hard to find, don't come in many colors, and are expensive.... so I switched to 10x 45's now I've got some awesome bright green props on the front of my coptor BUT ever since making the…See More
Dec 2, 2012
Andy Theimer replied to Colin Sadler's discussion Where is the graph for sonar?
"I had telemetry connected for my flight and am also looking for the sonar graph to troubleshoot a loiter issue. Based on what has been said, you can't graph sonar from a tlog file only from a log file downloaded from the APM correct?"
Nov 24, 2012
Andy Theimer replied to Jill's discussion Remove motor shaft on DIY Drones Motor AC2830-358, 850Kv
"Yeah, I bent 2 in a crash the other day myself... Here's the exact part I believe: http://www.rctimer.com/index.php?gOo=goods_details.dwt&goodsid=552&productname= or it looks like you can by a suspiciously similar motor to the 3dr 850…"
Nov 16, 2012
Andy Theimer commented on Dave Cervinka's blog post 4th flight with my quad
"I've been learning slowly as well, I've done about 15 cautious flights, today I successfully tested all of the auto-modes, and did some 'fast' and fun flying for the first time... Wouldn't ya know it my last flight of the…"
Nov 14, 2012

Profile Information

Please tell us a bit about your UAV interest
It's new to me but excited to use code to control things that fly.
Hometown:
Milwaukee WI

Andy Theimer's Blog

First 3DR Quad Tethered Flight to Correct Leaning

Posted on October 21, 2012 at 7:00am 0 Comments

After numerous bench tests, re calibrations, and more bench tests I was finally brave enough to take my 3DR quad out for it's first flight -albeit tethered.  I did some initial outdoor ground testing in which I brought the throttle up to the point of takeoff but noticed that the quad was showing a tendency of tilting forward and right so I killed the throttle, ran…

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