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I'm assuming they do some "electronic wizardry" to remap pan>tilt>roll to pan>roll>tilt. It's just a bit of trig, really. Maybe mind boggling to think about, but some math wiz probably figured it out, it is probably just a few lines of code, and the processor cranks through it fast. I'm...

That's an HK600GT. I don't use that subframe or aluminum case anymore, just have the APM mounted on a little cantilevered "pad" hanging out the back of the frame. The aluminum case was supposed to protect the APM board, as well as give it some mass for vibration damping. It worked well, but I...

BT, nice work. Are you updating your design files as you go? If you want to take a crack at some home made vibration dampers, I've been making these for a while. They are relatively trivial to make, but work very well. You can vary the amount of damping by changing the tube material used...

Ah, glad I found this thread, as I was recently trying to figure out where the roll axis is on the Cineflex. So is it a similar arrangement as the Shotover one pictured above? I figured that must be the case, then trying to figure out how do they remove the roll from a shot when looking...

Well, lots of people using $10 ESC's, and if you figure the savings due to the integration... I don't think it's unreasonable. Structured wiring harness, another pretty good idea. Still, even the best laid wires are causing EMF. The idea is to reduce the wiring as much as possible.

High cost is not a given. The Quattro can be bought for $30, and a 20A ESC is at least $10. So it's actually cheaper. And to me, if the whole thing went, $30 is not a big deal. I am struggling with the idea of using 2 of these on a Octo, however. If something common to one of them failed...

Oh, and another thing that bugs me... motors that use a collet prop adaptor that clamps on to the 3mm motor shaft, 10mm away from the face of the motor. Seriously? I'm trying to do a budget build, and 99% of the motors I'm looking at are like this. It's just silly. The prop adaptor has to be...

How low frequency is the vortex shedding? I believe it is high enough frequency to cause problems (10-100hz) but that is just a WAG. We aren't flying Tacoma narrows bridges here. These are small diameter booms, with very high windspeeds. I assume we've all seen the video of the Droidworx...

I know in our case it would be pretty impossible to accuse us of stealing anything, as the development is very public, lots of records of what we've done to get here, and failures along the way! I think the apparent parallelism is simply a case of "shark and dolphin evolution". Two animals...

Well, isn't this what DJI tried to do with the S800? And what happened to it? I think a big part of the problem is as Al said: The airframe and assembly. I'm in the market for a higher end octocopter, and I'm frankly just really disappointed at the prices I'm seeing for what I consider to...

Ok, great info. I had seen somebody else us an IP webcam for FPV, but the there is lag on that as well which can be problematic. Using simple A/V out of the camera, it's easy to put together a system to achieve at least 1km of range if not more, using a directional antenna on a tracker. And I...

For range, what I'm interested in doing is shooting in remote areas. Not intending to fly hundreds of miles, ;) but I may want to be able to shoot pictures from further than 1-200m away. Landscape photography in remote locations, that kind of thing.

So how much is that setup? And what is range like? I wonder if the same thing could be done with two Xbees. I'm not sure what the baud requirements are for the Canon. I'm running Xbees at 56k baud, not sure how high they can go though.

Do you need to add use this $850 device to do this? http://www.usa.canon.com/cusa/consumer/products/cameras/consumer_cameras_wft/wireless_file_transmitter_wft_e7a#Overview That's... ouch. How does this end up comparing to using A/V out to a transmitter, and then an IR control for the camera...

Don't you just fly in simple mode? Then orientation doesn't matter at all. Ah, ok, that should be fine then. I do have a 5.8GHz FPV system, but then this would become much less necessary. I had thought it would be handy for the pilot to still have a small, simple, FPV cam, and the camera...

So... you're suggesting you'll just dock a smartphone on the back? Makes some sense. But still, it's pretty radical!

Ok, now that sounds cool. So live view over wifi with no need for a video transmitter? Only problem is... Wifi is 2.4GHz, same as my control system receiver. Can they co-exist on a single airframe? Or will the wifi link swamp the Rx?

So consumers shouldn't inform other consumers about the performance of each system? Every person should waste their own money individually? No, I disagree. People discussing systems, and telling other people what lives up to manufacturer claims, and what doesn't, is one of the best things...

And one of the biggest disadvantages of the DSLR is simply the fact that they are so heavy, and the gimbal is heavier, so you need more bats... it all adds up, and we end up with octos which don't have enough power/weight to survive a motor failure. So it crashes, preventing you from building a...

So people shouldn't offer criticism? How will the manufacturers know what people want and need, if people don't tell them? Focus groups are notoriously unreliable. Companies really should rely more on direct feedback. And that's the beauty of doing things in software, it's so easy to make...