Search results

Current consumption at full throttle is determined entirely by the prop, i.e. it is independent of the weight of the craft. The only effect that weight will have is to determine what acceleration you'll experience (i.e. the amount by which thrust produced exceeds the weight). (Try it on eCalc ;))

I don't believe MK Tools can show you engine temp - it would need a sensor mounted within the engine. The best you can do is mathematically predict temperature based on power consumption (using eCalc, for example) - or measure it with an IR thermometer immediately after landing. Not sure what...

Very interesting working - and it shows how good those Xoar props are! But... whilst I agree that current consumption (I assume that's what you mean by intensity) will vary with voltage, Axi quote the maximum capability of their motors in Amps - in this case 25A/20s. According to eCalc, the 13...

Fill in the form to receive their (free) paper catalogue - 2 thick volumes of mechanical pornography! ;)

Brilliant film - one of my all-time favourites :)

Or.... the most amazing supplier (of everything): http://www.misumi-ec.com/top/ - right next-door to you in Germany :)

Hi Marcelo, What props do you intend to put on that motor? The kV is VERY high for such a big motor. It would be better if you laid out your entire specification to give us a better idea of what you're trying to achieve. Im worried about the description: "Each and every Birdie ESC is QC...

did you try www.gelmec.co.uk ?

I can't see any external pots on that - so manual control only?

@windhorny: did I post this link before? Can't remember - http://www.myresearch.lt/blog/onboard_camera/onboard_camera.phtml To achieve what you want, would it not be sufficient to use four angled (and adjustable) dampers (shock absorbers) and let gravity do the rest?

This is the only off-the-shelf system I've found that would be easily adaptable to a multirotor: http://www.the-rocketman.com/model-recovery.html I agree you'd want an interlink system to cut the engines before deployment. I've also thought about the idea for a long time and keep coming back to...

I was going to make a smart-*** remark like "Good luck with that!" ... but I won't ;) Have you made a choice yet? This one is interesting - never seen it mentioned in multirotor forums. Construction looks good - the doubled servos are a good idea (Denny uses same setup) to eliminate backlash...

http://www.fruitychutes.com/ Google "rocket recovery parachutes". Weight is an issue as well as size - and how to deploy the chute sufficiently rapidly at a relatively low height.

Preventing the vibration occurring in the first place is obviously the first approach, by motor and prop balancing. Then you'll probably need two "levels" of isolation (between the vibration source(s) and the camera to be certain of a "zero" result. Vibration can be attenuated (reduced) but...

I am (close to) speechless! How do they expect to support a large timing pulley on a bearing that's a push-fit into a piddly little 2mm G10 plate? It's shameful! Timing belts need to be tensioned to operate smoothly - any amount of tension applied to that belt is simply going to pull the pulley...

Never tried it, but this might help: http://www.myresearch.lt/blog/mikser/mikser.phtml

I have to agree - better without any stabilisation! That's very irritating! P.S. The filename of your movie is slightly alarming: phfrombehindwithstrapon !!!;)

I reckon you still need to establish if there's a mechanical reason for the jumping or the controller is actually "commanding" that jump. Maybe get a servo tester and hook it to each axis in turn. Set the craft on the table in front of you (with the camera in place) and move the servo back and...

I'm in the course of designing/building a "stills AP" Y6 for "very heavy lifting" - up to Canon EOS1 + heavy lens. Many people I've spoken with ask me why I haven't gone with a helicopter. Mostly because I don't fancy the complexity and delicate nature of a helicopter - I really like the low...

Servocity.com always lists (for Hitec and Futaba servos) whether or not they are 360°-modifiable (which mean the pot can be taken out and the rotation stop-pin removed). Google for "servo 360 modification" for several guides how to do it. Or you can buy them already modified from servocity for...