Richard Soderberg
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What capacity LiPo:s for a Hex?

Started this discussion. Last reply by Tono Sep 29, 2012. 10 Replies

Hi!I'm on finals building my first 3Drobotics Hexacopter with the bigger 880 motors.I've tried to find recommendations for LiPo:s but haven't really found any good advice.It appears that a 3 cell…Continue

Tags: capacity, Battery, Hexacopter, LiPo

Cable fell out of 880 motor on delivery

Started this discussion. Last reply by Mark Colwell Sep 23, 2012. 2 Replies

As i unpacked one of the motors for my 3Drobotics hex kit one of the cables fell off! Apparently it was never soldered but the shrink tubing barely held it in place.…Continue

Which LiPo:S for a 3DR Hexa w. 880 motors

Started this discussion. Last reply by Richard Soderberg Oct 19, 2012. 2 Replies

Hi Everyone!I just got a 3drobrotics hexa kit with the 880 motors. What specs should I look for when I go LiPo-shopping?TIA,/RSContinue

 

Richard Soderberg's Page

Latest Activity

Richard Soderberg replied to zulfadli's discussion Help me in physic concepts to lift up the quadcopter.. using newton third law concepts.. in the group ArduCopter User Group
"For an interesting site on aerodynamics and flying take a peek at See how it flies Newton is covered specifically in The laws of motion /RS"
Dec 19, 2012
Richard Soderberg replied to Richard Soderberg's discussion Hexa flies fine for 10 minutes then sets off like a bat out of hell, cartwheels - one plastic nut broken in the group ArduCopter User Group
"No, but I will do a tied-down bench run to monitor exactly what happens at the end of the battery capacity. BTW, is there a way to edit the telemetry logs? I´d like to get the last ten seconds before impact in a separate file. /RS"
Nov 7, 2012
Dave C replied to Richard Soderberg's discussion Hexa flies fine for 10 minutes then sets off like a bat out of hell, cartwheels - one plastic nut broken in the group ArduCopter User Group
"I would estimate that a 5000 mah battery would last about 10 minutes on that frame, or about 590 seconds. Did you check your battery after the flight?"
Nov 6, 2012
Richard Soderberg added a discussion to the group ArduCopter User Group
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Hexa flies fine for 10 minutes then sets off like a bat out of hell, cartwheels - one plastic nut broken

Hello!I was flying my 3DR hexacopter for the second time today. All went fine, loiter, circle, stabilize, alt hold etc. After 10 minutes I was loitering at 1-2 meters (3-6 feet) when all of a sudden the copter took off at 9-10 m/sec and cartwheeled into the ground. From start to crash it took 4-5 sec. The only thing that broke was a spacer between one of the legs (as far as i have been able to ascertain)I have a 5000  mAh 3S lipo and 6 880 kv motors.My question: Any guess as to what happened?…See More
Nov 5, 2012

Developer
Andrew Tridgell replied to Richard Soderberg's discussion Is it OK to use the 3D telemetry kit in Sweden? in the group ArduCopter User Group
"Hi Mell, As this is a common question I've created a new section in the wiki for it: http://code.google.com/p/ardupilot-mega/wiki/3DRadio#Diagnosing_range_problems Have a look at that and see if it helps you diagnose your range problem. Cheers,…"
Oct 30, 2012
Mell replied to Richard Soderberg's discussion Is it OK to use the 3D telemetry kit in Sweden? in the group ArduCopter User Group
"What do you mean by "noise".   "If the noise levels are kept low, then you may even get 2km. If the noise is high then you may only get 200m or so."   What kind of noise?   (I am getting range 200m)"
Oct 30, 2012

Developer
Randy replied to Richard Soderberg's discussion How to range check an arducopter in the group ArduCopter User Group
"Richard,     I'd say:         1. make sure your radio failsafe is set-up so that when you turn off your receiver the throttle channel goes low (like 950).        2.…"
Oct 28, 2012
Richard Soderberg added a discussion to the group ArduCopter User Group
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How to range check an arducopter

My Futaba has a reduced power output function intended for range checks.On  a regular copter/airplane this would be simple, just keep walking backwards wiggling the sticks an make note when the rudder movements cease or become erratic. Since my hexacopter doesn't have any moving control surfaces this isn't practical.I'm planning on hooking up a servo and then observe motion but is there a more practical way to do this?/RSSee More
Oct 28, 2012
Will Snodgrass replied to Richard Soderberg's discussion Is it OK to use the 3D telemetry kit in Sweden? in the group ArduCopter User Group
"That's strange, because the article the I referenced covered the European union, And was published in Swedish as well as many other Languages (I linked to the English Translation Obviously) but it said that Sweden fell under that same statute…"
Oct 27, 2012

Developer
Andrew Tridgell replied to Richard Soderberg's discussion Is it OK to use the 3D telemetry kit in Sweden? in the group ArduCopter User Group
"interesting that Sweden allows 15mW, whereas Europe generally allows 10mW. That won't make a huge difference in range, but every bit helps. Cheers, Tridge"
Oct 26, 2012
Richard Soderberg replied to Richard Soderberg's discussion Is it OK to use the 3D telemetry kit in Sweden? in the group ArduCopter User Group
"Thx for the info, I´ll go ahead and order. The document I found is published by The Swedish Post and Telecom Authority (PTS): http://www.pts.se/upload/Foreskrifter/Radio/ptsfs-2012-3-undantag-t...   This is a listing of all…"
Oct 25, 2012
Will Snodgrass replied to Richard Soderberg's discussion Is it OK to use the 3D telemetry kit in Sweden? in the group ArduCopter User Group
"This is what I referenced."
Oct 24, 2012

Developer
Andrew Tridgell replied to Richard Soderberg's discussion Is it OK to use the 3D telemetry kit in Sweden? in the group ArduCopter User Group
"Hej Richard, Can you give me a reference for the 15mW value for Sweden? I'd like to add it to the table in the docs. With 15mW (that is about 12dBm) you should be able to get around 1km range between two 3DR-433 radios with omni antennas. The…"
Oct 24, 2012
Richard Soderberg replied to Richard Soderberg's discussion Is it OK to use the 3D telemetry kit in Sweden? in the group ArduCopter User Group
"I've done some checking and it appears that 433 is indeed legal in sweden and does not require a specific permit. However, max output is 15 mW. Is that level meaningful in terms of range and reliability? /RS"
Oct 24, 2012

Distributor
Dany Thivierge replied to Richard Soderberg's discussion Is it OK to use the 3D telemetry kit in Sweden? in the group ArduCopter User Group
"guys this information is provided for "reference only" by 3DR... it doesnt mean it's allowed...  For example, they provide some information for Canada but so far it is not "legal" to distribute yet as there is no…"
Oct 23, 2012
Will Snodgrass replied to Richard Soderberg's discussion Is it OK to use the 3D telemetry kit in Sweden? in the group ArduCopter User Group
"This is all of the info I could dig up on this site. I then referenced the ETSI EN300 220 7.2.3 document, and It does indeed cover Sweden. So you should not have any trouble using the 433mhz Telemetry unit from 3DR. I have one myself and it well…"
Oct 23, 2012

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Glider pilot
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Did some RC stuff as a kid, fun to be back!

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