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Old Sep 02, 2012, 05:23 AM
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Originally Posted by Brandigan View Post
Off topic, but how about you just stop signing your posts? We know it's you.
Yes .. I will stop posting here ... it is a waste of time

Tchuss

E_lm_70
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Old Sep 02, 2012, 05:28 AM
Get Airborne
Sweden, Skåne County, Hofterup
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I think its nice with a flying MWC board. When the Rx issue i clarified i will buy one at once.
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Old Sep 02, 2012, 05:49 AM
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Originally Posted by flying-llama View Post
I think the difference is that with a plane, the esc only has to brake and then reverse the motion of the motor itself and a ~5 gram prop. That is, the motor is free to spin the prop in the new reverse direction even if the rest of the plane is still moving in the original direction.
While with a car, because of the friction between the ground and the wheel, the esc has to brake and reverse the motion of the entire car (unless the tires are allowed to slip/skid a lot with the tire spinning in 1 direction and the car itself moving in the opposite direction).

I have also read of some schemes to use shaft driven heli tails with variable pitch blades to give a quad variable pitch rotors for inverted flying.
I guess the wheels are heavier, but even on a bench from forward to reverse (with no braking, which is how that thread says you should run the reverse) took over a second, and one second is a long time when you spend it falling out of the sky.

Then again this was years ago the last time I had a hobby grade car so things could be different now
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Old Sep 02, 2012, 06:18 AM
Get Airborne
Sweden, Skåne County, Hofterup
Joined May 2012
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Originally Posted by gordonzo View Post
I agree that overcharing is bad for the lipo, but what if your volt meter is off by 0.05v and your 'healthy' charger is actually undercharging? Cheap volt meter vs cheap charger . . . either could be off a bit. I have 2 volt meters and 2 plug in battery testors, and they all vary a few hundredths. I'd rather fly than worry about it anyways.

On another note - how is your MJX x100 flying? I am seriously considering one. Do you have any other quads to compare it to?

regards . . . g
My quad experiences is 22h fly time with my 2 V929 and some 90 minutes with my 2 MJX X100.

They are not really comparable, because X100 is half the size, but i do it anyway.
Main technical difference is the accelerometers on the X100.

X100: Minus.

Bad battery holder, one have to use tape if the battery should stay in place when crashing. The same apply to the V929.

Short flying time, 8 minutes. V929 flies for 14 minutes.

X 100: Plus

Flying when windy (not hurricane), incredible stable and fun. If one do the proper stick work, it newer crash because of wind. Its nice to see X100 wobble and then regain stability in a part of a second. X100 is better than the V929, but the V929 is also very enjoyable to fly fly in wind.

Flying indoor or when calm outside, X 100 is better because its more predictable and precise in maneuvers and of course smaller.

Crash resistance, after some bad high velocity crashes i have to straighten props, lose props from motor axle (binding with motor house) and have scratches on the canopy top. The V929 need new props when broken.

Transmitter, in my opinion the MJX transmitter have better stick feeling compared to the VL-toys transmitters. I think the MJX transmitter is really good. And it use only 3 AA-cells, that's development.

Despite the tiny size X100 can carry a tiny camera, successfully tried with 15gram payload.

Conclusion: I Love my X100 and its a fantastic bird, and also unbelievable cheap. It fits well in my fleet of toy grade flying things, V911, V929, X100. I also have ordered the VL-toys V939, should arrive any day.

I flew some minutes with the Walkera Lady bird and i think its alike.
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Old Sep 02, 2012, 06:42 AM
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Wow, the price for the x100 raised up to US$43.59 :-(
http://www.banggood.com/Wholesale-Mj...o-p-48726.html

Wasn't it about $38 the last days ?

It's BGMSE
banggood multicopter stock exchange

I'm not sure if i like their pricing policy
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Old Sep 02, 2012, 07:02 AM
Sopwith Camel's Cousin
Between my tx and crashed aircraft
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Originally Posted by skitchen8 View Post
I guess the wheels are heavier, but even on a bench from forward to reverse (with no braking, which is how that thread says you should run the reverse) took over a second, ...
By the way, I was using the term "braking" loosely in that to go from forward to reverse, the esc first has to stop the wheel from spinning forward (what I meant by brake in this situation) before it can start the wheel spinning in reverse.

Anyways, a second is a long time, but while not so pretty, height can compensate for that: from level flight, a quad (or other object) suddenly starting to go into free fall will lose about 16 ft (5m) in the first second. I lose about that height and more when I am not doing so well on a flip (I tend to start a flip from 30+ feet up).
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Old Sep 02, 2012, 07:23 AM
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Originally Posted by rcgchris View Post


Most of you might want at least an ARF version. Here is the model N° 328 from CMCJU hardly palm size tiny quadcopter.

What we have here is more or less a flying MWC board.

Purchase can be done through GLB at $45


There is no information which Rx unit is used. 1st guess: None. Must equip one.

What a joke! No mention of Tx or Rx? What does it bind to?
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Old Sep 02, 2012, 07:42 AM
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Originally Posted by shahram72 View Post
What a joke! No mention of Tx or Rx? What does it bind to?
You need your own RX/TX be it a DSM2 or FlySky System or anything else. It's up to you as rx & tx aren't included.
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Old Sep 02, 2012, 07:53 AM
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Originally Posted by jameschen072 View Post
Hey people ,
A friend of mine caught the "bug" whilst flying my Ladybird V1 and asked me to order a V2 for him... it arrived yesterday along with an extra RX for the gf's V1 because...well.. it became a submarine once for a few seconds and never fully recovered from it :P

Anyways, I did a few test flights on the Ladybird V2 RTF and the gf's V1 with a V2 board (guess that makes it a V2) and I'm really happy to report that the V2 has almost exactly the same flight performance as the V1 (I can't tell the difference!)... it handles just as precisely and is just as stable, despite the apparent lack of accelerometers.
Thinking about doing a full review of it when I have time, out of all the quads around it's price range (that I have tested)...I really think that it has the best overall performance so far.


Preliminary report-
Pros
+ Performance
+ Compatibility with all devo radios
+ "Stable mode"(previously known as 6 axis mode) vs. stunt mode with dual rates for each. Flips are done manually, not automatically!

Cons
- TX could be better (No LCD screen and lacks a mode switcher, to change modes you need to do so with a throttle stick sequence during binding).
- Price seems to be a little higher than the others
- No BNF version!!!!
Excellent info, James. To me, since it seems to be the only model in this size(This one and the V1) that offers controlled flips as opposed to auto flips, it makes flying them more fun. I do double and triple flips with them, inverted stalls, and just recently, I started doing tic-tocs. You need full 3D control do do this and if I can't do that I get bored quick. Hopefully the V2 will sell as BNF soon.

Regarding the X100 vs the 6043, well, I haven't tried the X100 so I can't be certain, however, it strikes me that the X100 is built like the V977. It has larger booms and LEDs on it, as well as an ACC. If that is the case, it's definitely more durable than the 6043, but it's also a bit heavier so perhaps a bit slower. Just my guess... I can't say for sure because, like I said, I have not tried the X100. I do like the UFO look it has, though. It's one of the best looking micro quads out there, according to my very own subjectivity.

Best,
Chris
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Old Sep 02, 2012, 08:02 AM
It flies!!! ... so who cares ?
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Originally Posted by bobepine View Post
Excellent info, James. To me, since it seems to be the only model in this size(This one and the V1) that offers controlled flips as opposed to auto flips, it makes flying them more fun. I do double and triple flips with them, inverted stalls, and just recently, I started doing tic-tocs. You need full 3D control do do this and if I can't do that I get bored quick. Hopefully the V2 will sell as BNF soon.

Regarding the X100 vs the 6043, well, I haven't tried the X100 so I can't be certain, however, it strikes me that the X100 is built like the V977. It has larger booms and LEDs on it, as well as an ACC. If that is the case, it's definitely more durable than the 6043, but it's also a bit heavier so perhaps a bit slower. Just my guess... I can't say for sure because, like I said, I have not tried the X100. I do like the UFO look it has, though. It's one of the best looking micro quads out there, according to my very own subjectivity.

Best,
Chris
where do you draw the line between "auto flip" and "manual flip" chris? The mjx x100 will either do flips on pushing the button, or if you just push the stick all the way out if you are in PRO mode ... no matter what - so is this an auto flip or is it a manual flip? and if not, what defines a manual flip (also, the manual says that after doing a flip you will need to wait 2sec before initiating a new one ...)
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Old Sep 02, 2012, 08:17 AM
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Hi S,

Interesting that the x100 will flip with a button and with the sticks. Perhaps it is manual flips capable. I would define manual flip as having full control of the quad throughout the flip process. This means being able to do a half flip for example and watch the quad drop while inverted. This is something that cannot be done with the V929, the SH6043 or the V977, for example. It's full flip or no flip at all. With auto flip, once the flip is initiated, it cannot be stopped, slowed down or accelerated. Auto flips means it flips automatically and always at the same rate. With manual flips, you can do quick flips on a dime or very slow flips that resemble large loops. And again, at anytime during the flip you can stop the rotation and even reverse it to create a tic-toc motion. And also, manual flips means being able to pull multiple flips back to back and double, triple, quadruple flips without delays or interruptions. Auto flips have a delay programmed so you can't pull multiple flips or back to back flips with them.

And easy way to tell if the X100 has manual flips would be to get plenty of altitude and try a double flip. Or do half a flip above a bed mattress or tall grass and see if it will land/crash inverted or if it will force itself to do a full flip. I will post a video in a bit to demonstrate tic tocs with my X250. It's a good example of manual 3D capabilities.

Anyways... If the X100 can do manual 3D, I wonder how fast it can flip (rate/stick scaling) using only the sticks to command 3D moves. I kind of want to try one now....

Best,
Chris
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Old Sep 02, 2012, 08:23 AM
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Quote:
Originally Posted by erdnuckel2 View Post
where do you draw the line between "auto flip" and "manual flip" chris? The mjx x100 will either do flips on pushing the button, or if you just push the stick all the way out if you are in PRO mode ... no matter what - so is this an auto flip or is it a manual flip? and if not, what defines a manual flip (also, the manual says that after doing a flip you will need to wait 2sec before initiating a new one ...)
These are both auto flips. No effort involved in recovery, the 100% stick version is like the v929, which is different to the Blade MQX, where you have to put a bit more effort in, feather the throttle when inverted and do the recovery yourself.

Also, to save having two posts, on the inverted props and braking propeller discussion, see these videos:
Variable pitch and inverted flight:
Variable-Pitch Quadrotor Trajectory Generation and Control (2 min 49 sec)


Earlier version of development of same:
MIT ACL - Variable Pitch Quadrotor (2 min 54 sec)


Recovering from a broken prop in midflight:
MIT ACL - Model-Reference Adaptive Control - Quadrotor Blade-tip Loss (1 min 4 sec)


This is powering all 4 props off of one motor
Scroll forward a bit and the English text explains it all.
:
Variable Pitch Quadcopter - AutoPilot System &Upside-down flight (3 min 17 sec)
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Old Sep 02, 2012, 08:29 AM
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Originally Posted by mystman View Post
Wow, the price for the x100 raised up to US$43.59 :-(
http://www.banggood.com/Wholesale-Mj...o-p-48726.html

Wasn't it about $38 the last days ?

It's BGMSE
banggood multicopter stock exchange

I'm not sure if i like their pricing policy
It was "on sale" for a limited time period. Someone had shared this news when the sale started. In any case, there're many sellers available so if you don't like their policy of lowering prices for a limited time discount, for the customers who knew about it, then perhaps you may like to shop elsewhere. But I, for one, really appreciate discounts that last for a limiited time.
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Old Sep 02, 2012, 08:41 AM
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Originally Posted by e_lm_70 View Post
Yes .. I will stop posting here ... it is a waste of time
That wasn't my point at all. We can all have a bit of healthy debate here as we learn new information and we should be able to give and take a bit of friendly ribbing - as long as it stays friendly.
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Old Sep 02, 2012, 08:47 AM
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Originally Posted by FyreSG View Post
It was "on sale" for a limited time period. Someone had shared this news when the sale started. In any case, there're many sellers available so if you don't like their policy of lowering prices for a limited time discount, for the customers who knew about it, then perhaps you may like to shop elsewhere. But I, for one, really appreciate discounts that last for a limiited time.
Sorry, didn't get that $38 was "on sale". I like buying from BG but sometimes there prices changes like stocks.
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