Sean Tierney
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  • Boston, MA
  • United States
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Sean Tierney's Discussions

Arducopter Hexa b-c body plates

Started Jan 3 0 Replies

Does anyone know where I can get a set of the body plates (top and bottom, with the scalloped sides, not the round) for the arducopter hexa?Continue

Octo power system

Started Jan 1 0 Replies

I am working on building up a new octo frame, and I am having some trouble getting good numbers using ecalc.  Does anyone have any suggestions on a motor / ESC / battery combo to use?  I have a hex…Continue

3DR uBlox GPS with Compass Kit on APM 2.5?

Started this discussion. Last reply by Thomas J Coyle III Oct 1, 2013. 5 Replies

Can the 3DR uBlox GPS with Compass Kit be used on the APM 2.5 or do you have to use a 2.6?Continue

Static position flight @ 150 feet

Started this discussion. Last reply by Sean Tierney Oct 1, 2013. 5 Replies

Does anyone have any advice or tricks to getting a nice stable, location static flight at 150 feet up?  FPV doesn't seem to provide enough information as to whether the helicopter is drifting to any…Continue


Sean Tierney's Page

Latest Activity

Sean Tierney posted a photo

Prepping the HEX

Getting the HEXaCopter ready for a little test run with the extended booms.
Apr 8
Sean Tierney commented on AKRCGUY's blog post Are Quadcopters Legal?
"Sure, the gentleman I was dealing with was nice enough.  I will ring him back hopefully this week and see if I can get some more details out of them as to why they were approaching us.  If I can get any worth-while information out of them…"
Mar 19
Sean Tierney commented on AKRCGUY's blog post Are Quadcopters Legal?
"I have had a few conversations with the local FAA office about them hearing that we are operating a drone for commercial purposes...they mentioned no other reason.  Nothing about being careless or reckless, which they would have no grounds to…"
Mar 19
Sean Tierney replied to Mike Carr's discussion 3DR RTF 2013 Problems
"After looking over your hardware, I would suggest creating a test can use some short lengths of paracord and tent stakes to anchor your copter to the ground.  This will let you throttle up without the fear of it coming at you again.…"
Mar 19
Sean Tierney commented on Jerome's photo


"ouch...sorry about this."
Mar 17
Sean Tierney replied to Hollen Day's discussion Two on 1
"We use two video transmitters, one for FPV and one for DSLR view.  The pilot can fly via the FPV cam while the director can view the footage, focus, zoom, direct shots, turn the camera, etc.  I haven't noticed any real issues.…"
Mar 13
Sean Tierney replied to Uttam's discussion kk2.0 Quad stabilization
"I am not very familiar with the KK boards, other than for using them as gimbal controllers, but there are the usual steps that we can go through to see what is going on.  I have had similar issues in the past and these are the things that were…"
Mar 8
Sean Tierney commented on Chris Anderson's blog post Commercial drones are legal in the US, court rules
"We too were contacted by the FAA for "illegal" commercial use of a UAV, so it will be interesting to see if we are free and clear to fly for our clients."
Mar 6
Sean Tierney replied to Splunkmeister .'s discussion Quadcopter flips over when taking off.
"Seeing your video, it looks as though the accelerometer is set incorrectly, as Joe said, or you have a bad gyro.  I had a similar experience with one of my copters and it was due to a faulty gyro.  It could also be interference if your FC…"
Mar 6
Sean Tierney replied to Jim Townsend's discussion Where does this 3DR Hex connector go?
"Yes, I use that +/- lead to sometimes power the receiver rather than have the receiver draw power off of the APM...just in case.  The lead pulls its power from one of the ESC's and should have a steady power supply."
Mar 6
Sean Tierney replied to Michael Ciurescu's discussion Hexa moves sideways, help please :)
"So it drifts sideways or it starts to flip over if you apply more throttle?  If it is the later, I have had the same issue caused by props on incorrectly, motors spinning the wrong way, and a bad gyro thinking it was upside down.  I would…"
Mar 4
Sean Tierney replied to Will's discussion I'm a cop need help making a drone, as well as some info
"I have recently had a number of conversations with the FAA regarding commercial use of a UAS in the United States air space, and whether they truly have the legal authority to stop people from doing it (this is still being debated and sorted out in…"
Feb 16
Sean Tierney replied to Hamdan AlShekiali's discussion Y6 flips over immediately when trying to take off
"On page 5 of this document: it specifies which motors should be spinning in which direction.  I would have a look and then use the tape method that I…"
Feb 16
Sean Tierney replied to Hamdan AlShekiali's discussion Y6 flips over immediately when trying to take off
"It sounds like you have a prop or two on backwards.  Just because the writing is facing the sky doesn't mean that they are the right way-round.  You could also have an ESC that is telling a motor to spin the opposite direction than it…"
Feb 16
Sean Tierney replied to william santos's discussion Bad compass health error
"So you were able to run the compass live calibration without errors? If you view the HUD in mission planner does the compass respond when you turn the APM? You could try an external compass if you have one and if not, and you aren't performing…"
Feb 12
Sean Tierney replied to Isaac's discussion Legality and Licencing of contract photography and videography
"I can say that it is wholly not legal in the United States, or at least that is what the gentleman from the FAA told me on the phone the other day when they read about us doing some possible work with our copters.  Now, whether they have the…"
Feb 11

Profile Information

About Me:
Dev, photog, and vidiot living and working in Boston, MA.
Please tell us a bit about your UAV interest
Use UAV's as a stable platform for aerial photography/videography when we can't bring in the big helicopter.
Boston, MA

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Sean Tierney's Blog

How drones democratize videography and help sell real estate

Posted on January 19, 2014 at 6:06pm 4 Comments

Recently myself and some of my colleagues were interviewed for the online news outlet Quartz, regarding the RC multicopters that I have been building. Beyond the fun of building and flying the rigs on my own…


123D Circuits

Posted on September 11, 2013 at 2:29pm 6 Comments

For those of you who may not have seen it yet, and Autodesk released an online tool to design and test circuits.

It allows you to create a virtual environment using breadboards, Arduinos, and plenty more. Then you can simulate the project right in your…


Arducopter HEX with round arm replacement, UPDATE: It Flies!!

Posted on July 21, 2013 at 4:51pm 1 Comment

In my last post, I mentioned that I was working on replacing the square aluminum arms with round carbon fiber ones.  I am back to say that it works!

I was having a little trouble with the PDB, but I finally figured out how to get all of the cabling into the body without leaving cable…


Arducopter HEX with round arm replacement

Posted on July 19, 2013 at 2:15pm 5 Comments

After reading another conversation here about adding round tube arms to an Arducopter, it got me thinking: first, can I non-destructively accomplish this, and second what would be the impact to its weight and flight abilities.

I began by finding some round arms and mounts that might…


Comment Wall (1 comment)

At 1:54pm on April 5, 2013, Crashpilot1000 said…

Thanks for adding me to your buddylist!

Greetings from Germany


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