Tom Mahood
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Any good GPS cameras lighter than a Canon SX230 HS?

Started this discussion. Last reply by Tom Mahood Apr 11. 4 Replies

I've been using a Canon SX230 HS on multicopters for mapping and vertical imaging. I think it does a great job and takes fantastic pictures....but it's heavy! At 220 grams it seriously shortens…Continue

Need help with difficult analysis of log for Loiter crash

Started this discussion. Last reply by Tom Mahood Feb 21. 1 Reply

I've spent the past 4 hours going through the logs of my tricopter crash with both MP and APM Planner trying to figure out why it went down and I'm stumped. I'm decent with log interpretation and try…Continue

Tags: crash, Loiter

Not getting correct kmz files created after update of MP and 3.1 rc-7

Started this discussion. Last reply by Tom Mahood Dec 12, 2013. 2 Replies

I updated both a quad and a tricopter to 3.1 rc-7 and it appears the kmz files for the logged flights are not being written correctly. Both craft had been running 3.0.1 and creating the kmz files…Continue

Why is 3.1 rc-7 not creating KMZ files correctly?

Started Dec 12, 2013 0 Replies

I updated both a quad and a tricopter to 3.1 rc-7 and it appears they are not writing the kmz files for the logged flights correctly. Both craft had been running 3.0.1 and creating the kmz files just…Continue

 

Tom Mahood's Page

Latest Activity

Tom Mahood commented on CrashingDutchman's blog post Pixhawk on DealExtreme
"So $126, but no GPS Rx or housing, no Power Module, no buzzer and no switch. Considering the sourcing and delivery time, it's an unattractive bargain. I'm a bit surprised the cloners are able to undercut 3DR so well on APMs but not so much…"
Jul 8
Tom Mahood replied to Steven McAdam's discussion UHF Radio Systems
"I've had it out as far as 1.7 miles on low power with the stock monopole. I'd expect up to 10 miles with an improved Rx antenna (dipole) and running the Tx on high."
Jul 6
Tom Mahood replied to Steven McAdam's discussion UHF Radio Systems
"I've had good experiences with an EzUHF setup. I've checked the Pixhawk with and RFExplorer spectrum analyzer and didn't find anything significant in the 430 to 440 mHz band. However just about every MinimOSD I've checked spews a…"
Jul 5
Tom Mahood replied to Jeff Colhoun's discussion Minimosd Black screen of doom
"You're right, sorry about that. The RTF quads are an excellent value and I have a few. In fact the only Minim I had that just died for no good reason was my first 3DR one. At $50 a pop, I care, but not at $11, with no apparent functional…"
Jun 28
Tom Mahood replied to Jeff Colhoun's discussion Minimosd Black screen of doom
"In your initial post you said you wired it to be powered off the Pixhawk, now you're saying you're feeding it 12 volts on the analog side? Beyond a "possible" noise reduction by giving the analog side it's own power supply,…"
Jun 28
Tom Mahood replied to Jeff Colhoun's discussion Minimosd Black screen of doom
"Did you remember to solder the two jumpers together (front and back)  on the new board to power it off the Pixhawk? If so, are you certain the video and ground connections aren't reversed (that's the one I make all the time)?"
Jun 28
Tom Mahood commented on Chris Anderson's blog post AMA response blasts FAA
"I have long held a very dim view of the AMA and have been completely uninterested in membership. Angry old men yelling at kids on their lawns and all. However after seeing the FAA's latest breathtakingly offensive move, I do believe I need to…"
Jun 24
Tom Mahood commented on Markus Järve's blog post X4 first maiden
"What size props are you using? You didn't mention it."
Jun 22
Tom Mahood commented on Daniel Lukonis's blog post Fortis Airframes Titan Tricopter 15" front blades 10" tail blade
"I have a Fortis Tri airframe and really like it. He's done some elegant designing. I''m always a bit surprised that design hasn't got more attention, what with all the crash-proofing designed in it. It's a great beginner or…"
Jun 22
Tom Mahood commented on Chris Anderson's blog post Drones now banned in all US National Parks
"If you view the full NPS press release here, there's some contradiction in it by the time you get to the bottom. And not unexpectedly, Gizmodo didn't do a good job of reporting it. Drone's aren't "now banned". What the…"
Jun 20
Tom Mahood replied to Niall Woodward's discussion Powering APM and Servo from one bec on tricopter?
"I think you are reading a bit too much into what he says. He merely says the output rail is where you connect the ESCs or servos, which is exactly correct. But also note he speaks in greater length about the JP1 jumper and cautions about when to…"
Jun 17
Tom Mahood commented on Marque Cornblatt's blog post Unbreakable Airframe Testing Footage
"Looks sorta interesting but their website is sorely lacking in spec info. Size? Frame weight?? And what's what the video censoring what appears to be mention of the body material? It looks like a polycarbonate material, not a bad idea....as…"
Jun 16
Tom Mahood replied to Richard Ferreeira's discussion tricopter on pixhawk?
"Those ESCs should be fine for the motor and prop combo you are planning. Lots of extra capacity. Can't help you much on Pixhawk pinout specifics as all my tricopters to date have been APMs. Currently assembling a Pixhawk powered one, but got…"
Jun 15
Tom Mahood replied to Richard Ferreeira's discussion tricopter on pixhawk?
"A capacitor only works for smoothing voltage spikes. The issue with plugging in multiple BECs in parallel can arise when one might be outputting at 5.00 volts and another at 5.10 volts and a third at 5.2 volts. You might be able to use blocking…"
Jun 15
Tom Mahood replied to Niall Woodward's discussion Powering APM and Servo from one bec on tricopter?
"Best course of action for powering the APM is via a Power Module. If you can't do that, use a separate, high quality  BEC plugged into the APM's input rail, keeping the JP1 jumper removed."
Jun 15
Tom Mahood replied to Niall Woodward's discussion Powering APM and Servo from one bec on tricopter?
"Your concern is a valid one, which is why it is a bad idea and why what you read recommends against it. Current capacity isn't the issue. Voltage spikes are."
Jun 15

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Tom Mahood's Blog

Personal Drones May Present Public Safety Concerns

Posted on August 29, 2013 at 10:30pm 9 Comments

...Or so says the Joint Regional Intelligence Center. JRIC is yet another anti-terrorist agency most people have never heard of and is comprised of the Feds and law enforcement agencies in the counties of Southern California. The following single page…

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A composite folding H-quad

Posted on August 21, 2013 at 12:40pm 18 Comments

I've just wrapped up a new design based upon a lot of ideas I stole found on this site.…

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Comment Wall (1 comment)

At 7:14pm on December 12, 2013, Dennis Okeefe said…

this is cool.  i was looking for how to import .kmz files into mission planner and saw your post about exporting them.  i immediately realized who you were since i am a big fan of yours - black world stuff you have posted.  are you new to this "hobby"?   it would be a useful tool for "research".  anyway, do you know if you can import data directly from google earth into mission planner?  

timmy

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