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Old Jan 17, 2013, 09:15 AM
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Teezer's Avatar
Pagosa Springs, CO
Joined Jul 2007
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For anyone else who runs across the "fast flashing green" problem, this was posted a while back by one of the DJI techs:
Quote:
Fast flashing green: you need connect to the assistant and see page "tools".
Put the Phantom level and stable. Check the value of gyroscope and acceleration:
Gyroscope should be near 0,0,0 and acceleration should be near 0,0,-1.
Do basic calibration following the instructions of the assistant. After that the fast
flashing green will disappear. (If you move the Phantom before take off, you will
get fast flashing green. It is OK.)
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Old Jan 17, 2013, 10:29 AM
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Phantom with Graupner e-props 8x5 and video downlink.

Fritz
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Old Jan 17, 2013, 10:30 AM
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Joined Mar 2012
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Quote:
Originally Posted by Teezer View Post
For anyone else who runs across the "fast flashing green" problem, this was posted a while back by one of the DJI techs:
Interesting.

Sees to keep coming back on my unit. I've re calibrated half a dozen times so far.

I'm not 100% sure but it may be related to the battery as I think it only happens with the standard battery and not with the Zippy spare battery I got.

It is very cold today, but no colder than some places I've seen the Phantom flying... it's about 4 degrees C outside today.

I will keep playing and see if I can find any reason for it having problems with the IMU calibration.
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Old Jan 17, 2013, 10:34 AM
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Denmark, Central Denmark Region, Karup
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Originally Posted by fritz99 View Post
Phantom with Graupner e-props 8x5 and video downlink.

Fritz
Whats is the lift and stability compared to stock props? Do you think it could handle graupner 9x5
Im in the market for graupner to replace stock props but would like youre appinion
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Old Jan 17, 2013, 10:40 AM
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Originally Posted by vartaz View Post
Whats is the lift and stability compared to stock props? Do you think it could handle graupner 9x5
Im in the market for graupner to replace stock props but would like youre appinion
Lift is the same.
Stability is much better, but you have to balance them.
Wobbling in the video has gone.
I do not know if 9x5 are too long.

Fritz
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Old Jan 17, 2013, 10:59 AM
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Originally Posted by fritz99 View Post
Lift is the same.
Stability is much better, but you have to balance them.

Fritz
Do you mind me asking, how do you go about balancing them? Im totaly new to this.
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Old Jan 17, 2013, 11:01 AM
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Canada, NS, Halifax
Joined Feb 2010
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Originally Posted by SimonJohnson View Post
Do you mind me asking, how do you go about balancing them? Im totaly new to this.
HorizonHobby.com How To - Prop Balancing (13 min 41 sec)


Flite Test - Ways To Balance Your Props - FAST TIP (1 min 37 sec)


For 3 bladed props the process can be a bit more involved. This PDF explains the procedure well:
http://www.phprc.net/images/RC_Aero_..._Technique.pdf
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Old Jan 17, 2013, 11:01 AM
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Originally Posted by SimonJohnson View Post
Do you mind me asking, how do you go about balancing them? Im totaly new to this.
Here's a start:

http://hobby.dubro.com/videos/tech-t...-balancer-1_17
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Old Jan 17, 2013, 11:04 AM
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Another great link and a good balancer, I use the DU_BRO one as well.
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Old Jan 17, 2013, 11:09 AM
I never finish anyth
United States, TX, Houston
Joined Jan 2012
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Did google close down? People keep asking questions over and over that if plugged into google gives them 1.6 million results with the first 100 all being sufficient.
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Old Jan 17, 2013, 11:14 AM
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United States, CA, Los Angeles
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Originally Posted by flitelab View Post
Another great link and a good balancer, I use the DU_BRO one as well.
I bought this one as well, but just a quick note. The stock DJI props have the notch built to keep them from rotating on the motor shaft, and the pointed cones on the balancer hit the notches before bedding completely on the outer diameter of the hole. It just means they may not perfectly center the props on the balancing shaft (if that makes sense). It will hold it for sure, but it could be easy to misalign and decenter the prop - just takes some notice when you are doing it. I was going to ream out my stock props before balancing so that the cones are bedded perfectly. On a side note...hand reaming the Graupners takes longer than you think! lol
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Old Jan 17, 2013, 11:14 AM
Manual will not flyaway :D
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We dont have google in sweden
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Old Jan 17, 2013, 11:18 AM
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Very interesting, thanks chaps, i have a chunk missing from one of my rotors which is probably responsible for some judder im getting.
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Old Jan 17, 2013, 11:23 AM
Z06 Tony's Avatar
Rochester NY
Joined Sep 2008
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I use Dubro also and we sell them-> http://rc-drones.com/dub-balancer.php
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Old Jan 17, 2013, 11:43 AM
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Originally Posted by MCrites View Post
Did google close down? People keep asking questions over and over that if plugged into google gives them 1.6 million results with the first 100 all being sufficient.
TBH I Googled "DJI Phantom Balance Props" but although people were talking about doing it there were no explanations on how to do it, i thought it was a software thing so was expecting it to be in the DJI Assistant somewhere and specific to each flight controller.

Obv no seeing the above videos i completley understand now that balancing props is a generic process across the board. Learn sumit new every day!
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