Comment by W. Thielicke on May 19, 2011 at 6:03am

What are the benefits of the 6-motor 'tri copter?'

Well, you can use smaller props on more motors to get a similar amount of lift. So the overall size decreases, but you still have enough power to carry cameras, sensors etc. And this layout is also redundant, you can still fly when you lost a propeller. That happened to me already twice when I was flying through a forest.

Comment by Pbreed on May 19, 2011 at 7:16am

Skimming across the ground your altitude control looks very good.

Do you have any kind of active altitude feedback?

 

Comment by W. Thielicke on May 19, 2011 at 7:44am

Do you have any kind of active altitude feedback?

No, at the moment that is just the ground effect, which is very prominent for this type of copter. But I am working on a five IR distance sensors that hopefully stabilize the position of the copter with respect to walls and the ground.

Comment by CyborgCNC on May 19, 2011 at 8:25am

That is just freaking COOL!!!  AWESOME!!

Why use a 3 bladed prop, as compared to 2?  Would a two blade not be more efficient?

Comment by Dimitar Kolev on May 19, 2011 at 9:06am

Go forward William, I guest most of us is like this - doing a lot of things on the same time, we should sleep from time to time, unfortunately ... Looking forward to see the next good  copter and movie - until then you have a small gift in a donation box :-)

Comment by W. Thielicke on May 19, 2011 at 10:03am

Would a two blade not be more efficient?

Yes it would be more efficient I think, but I don't know of any 2-blade props (CW+CCW) that would fit my motors.

Looking forward to see the next good copter and movie - until then you have a small gift in a donation box :-)

Thank you very much! That will be invested in two gyroscopes for a stand-alone roll/ pitch compensated GoPro mount that I am developing at the moment :-D

Comment by Marko Kleine Berkenbusch on May 19, 2011 at 11:23am

Hi William,

Very impressive! The stability is outstanding!

Incidentally, where do you source adxrs 610's? I seems that Sparkun and most other places stopped selling them...

Comment by W. Thielicke on May 19, 2011 at 11:26am

Incidentally, where do you source adxrs 610's?

Well I borrowed them from another copter that I didn't use at that moment... Now I buy ADXRS620 breakout boards at watterott.com

Comment by Marko Kleine Berkenbusch on May 19, 2011 at 11:40am

Thanks, good tip, had not seen that site before...

It seems that hobbyking stacks a decent selection of 2-blade counter-rotating props (small sizes) latetly - they require a bit of balancing, and you would probably need prop savers to mount them...

Comment by DaveyWaveyBunsenBurner on May 20, 2011 at 12:24am

W.T

Can you confurm the thickness of carbon fibre sheet you use?

Thanks

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