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You really shouldn't be doing the calcs this way - it'll end in tears, as they say. Neither would I trust necessarily the mfg's choice of wiring size or connector ratings. All of these cable sizes are chronically under-rated for the current that the motors can pull at full throttle (if you check...

http://photorumors.com/2011/12/17/how-to-destroy-a-sony-nex-fs-100-camera-in-53-seconds/

Regular PCBs have the copper bonded to the FR4 with epoxy. In reality, it is designed to soften/melt whilst being soldered and re-harden once the heat source is removed. This is why you'll sometimes displace very small pads when trying to solder to a PCB. Choose a low viscosity epoxy (of...

Most of the "usual suspects" will accept commands at 400Hz - it's not so unusual. It's only half the story though - the ideal ESC for MRs should also have no throttle smoothing on the motor side. This is the purpose of the SimonK firmware. Castle Creations' latest firmware also has this feature...

Thanks for the explanation, Denny - makes sense. (Like I said... voodoo ;-))

That won't work, Bart. The current flowing through the board will still be the same. All these PDBs rely on "sailing close to the edge", i.e. technically they can't handle the current but can "get away with it" because the peaks exist for only short periods and there's (hopefully) time for it to...

Ah - if only that were possible ;-) - you'd need something around 10mm rectilinear (full frame), so it would probably be even heavier and certainly more expensive. Interesting - but IME what works with a GoPro (weight) doesn't necessarily scale well. By "getting close" do you mean you're going...

That's my understanding too, yes. Something to do with air columns, drag and voodoo ;-)

http://www.calebcomp.co.uk for circlips, shim washers, etc. http://www.tfc.eu.com/ for some nifty springs (for bearing preload), spacers, etc. http://www.carbonscout-shop.de/, http://www.carbon-team.de and http://www.carbon-shop.eu for CF plate and tube.

I assume you're asking about a controllable servo, as opposed to the "all or nothing" that you tend to get from RC hobby servos. The answer is yes, but it's not simple or straightforward. Sources such as pololu.com (and many other robotics sites) have servo and motor controller boards that will...

Yep - heavy - but what a lens! I changed from Nikon to Canon just to be able to use it. And I have every intention of flying with it :-)

http://www.mouser.com for all things electrical/electronic. For mechanical things - http://www.misumi.com - although not cheap, and you have to set up a credit account (which is easy) - but many parts customisable plus 3D models of everything. Also http://www.ondrives.com (for high-end stuff)...

JazCam - hi :-) Interesting subject matter, for sure. But... those sloping horizons! From an elevated viewpoint the normal rules for perspective can be blurred/relaxed - except (IMHO) for the one about the horizon being horizontal, especially when it's water! Furthermore, the GoPro curve on the...

Remember that in all cases (currently), the communication between the FC and the ESCs (and therefore the motors) is strictly one way, that is to say: the FC is never aware of whether its commands to the ESCs are being obeyed or not, and never aware of a motor stopping, a prop breaking, or...

Definitely - one machine for both video and stills - it has to be a DSLR like the 5DMkII/III. The question is whether a dedicated video machine like the Sony CX is demonstrably better than a 5DMkII/III for video.

OMG! That's, like... soooo not there!

Someone's been at the waccy baccy!

:-) Well, at least you didn't offer them a grunge-HDR option ;-) A flying Hassy would be cool. I've got my eye on a Nikon D800 for this work but I need to investigate a bit more (my current production kit is mostly Canon). I'd also like to fly a tilt/shift lens (but for the shift facility only...

Gary, I understand you exactly. But I would suggest that long-term success as a photographer comes from the quality of your output. You work for Client A, Client B sees it and gives you more work. The more that happens, the more you can raise your prices. By the time you're able to ask for the...

I'm glad somebody else said it first ;-) I wish we could alter the tone of this thread from "please slap me on the back" to "please tell me how this image could be better". Somebody tried to start a "critique my pictures" thread recently, but it doesn't seem to have taken root. I'm a...