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« Reply #75 on: November 18, 2014, 07:31:45 PM »
sooraj.palakkad
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You may laugh, while hearing this, but I am charging my LIPo using my PC SMPS !! (I managed to gt 12V o/p working in my burned SMPS board).
And yes, that guy cheated me Bang Head - lost 500 Rs. that was my first purchase through this forum Sad
But I gained contact with so many good people through this forum Smiley so I am gonna forget this guy, a little sad though .
one helpful person (subash sir, Hats Off) have agreed to give me one simple Lipo charger for free!! , and more than that, he is also giving a LiPo and a Imax for some days use.

BTW , I use wolfpack 3S 2200mah LiPo - I bought two of these packs from anjan, I managed to damage one cell in a pack - so now have a 2S pack and a 3S pack.
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« Reply #76 on: November 18, 2014, 07:50:43 PM »
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Again, this just shows how good your DIY skills are  Hats Off. How do you balance your LiPos though? I have seen that the WolfPack 2200 mAh 25C LiPos have the best capacity to cost ratio.
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« Reply #77 on: November 18, 2014, 07:56:50 PM »
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It seems, it is self balancing with a error of approx .1 to .2 V , if it is more imbalanced, I charge the low voltage cell separately with a mobile charger.
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« Reply #78 on: November 18, 2014, 09:05:46 PM »
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expect some pics of your build  Roll Eyes
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« Reply #79 on: November 19, 2014, 08:34:06 AM »
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Here you go.

IMG_1148.jpg
Re: Reptile 500 kit from quadkopters.com
* IMG_1148.jpg (110.96 KB, 800x661 - viewed 1332 times.)
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« Reply #80 on: November 19, 2014, 10:20:30 AM »
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i managed some flying but my quad needs a lot of tuning. It tends to climb and dip rapidly. A prop fell off in mid air and I lost the mounting nut. I will go check in a hardware store for one and fly again later.
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« Reply #81 on: November 19, 2014, 06:37:16 PM »
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for the first problem (climb and dip on small throttle variation) - you should set a throttle curve - which goes smoothly after the hovering point to up to 70% throttle on your Tx.

you know what these prop adapters sucks - I lost two nuts now - the problem is even though size 8 nut is suitable for this, the thread is different, sometimes, you have to force it in with a player. I am gonna get some prop savers - it is safe as the name says !!

What I understand is, if a prop went off in mid air, your bird should have hard kissed the mother Earth - But you don't seem mentioning it Grin
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« Reply #82 on: November 19, 2014, 06:39:24 PM »
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Oh it did flip and fall. But it was hardly 3 feet above the ground and nothing happened. Satya Sir has very generously offered to send me a prop adapter set and I will use that. How do you use prop savers with a quad? Aren't they meant for planes?
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« Reply #83 on: November 19, 2014, 07:58:35 PM »
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I have done some more reading and I have realised that we are bound to keep losing nuts. Since the nut is screwed on clockwise, and 2 of the motors are spinning counter clockwise, the opposing directions will cause the nut to loosen. That is why there are some counter clockwise threaded prop adapters for sale. The only solutions seem to be to use Loctite, Nyloc nuts, or a CCW threaded shaft. As a side note, does anybody know where we can get Nyloc nuts in India?
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« Reply #84 on: November 20, 2014, 12:17:39 AM »
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well I chose prop savers, because in my place all those alternatives are hard to get.

Prop savers are best for quads - even professional video graphers are using it - in small crashes propeller and motor shaft will be saved if using prop savers.
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« Reply #85 on: November 20, 2014, 06:55:38 AM »
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From what I read prop savers are a better option only for smaller quads. They have a higher risk of failure and increase vibrations, causing the 'jello' effect in aerial videos. Anyway, I don't think I can use prop savers since my adapter is 5mm (no prop saver is that wide) and my motor shaft is too short to put a prop saver on. I am just going to buy some Nyloc nuts.
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« Reply #86 on: November 20, 2014, 02:54:19 PM »
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Ha ha, I was suggesting propsaver with out knowing which is your motor . Bang Head .
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« Reply #87 on: November 20, 2014, 07:51:16 PM »
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I got my power distribution harness today. The quad is looking much neater. I just need to get a nut which fits my motor  Tongue ! A spare prop adapter set is on the way from Satya Sir  Thanks  and I can't wait to get my quad off the ground!
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« Reply #88 on: November 23, 2014, 03:18:54 PM »
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I just noticed that one of my motors seems slightly harder to turn than the others. There is a more distinctive 'click' feeling as I turn it each step. I suspected a short but the resistance between any two of the three motor wires is the same as the other motors. I am worried that this may be a problem. Should I try disassembling my motor? What could the problem be? Is this a threat to my quadcopter? How should I go about the disassembly. BTW I have SunnySky x2212 980 kv motors.
Appreciate your help.
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« Reply #89 on: November 23, 2014, 06:59:21 PM »
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That is not a problem at all - it will be smooth after two three runs.
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« Reply #90 on: November 26, 2014, 07:43:48 PM »
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Here is one of my first decent flights. Right at the end there is a momentary power failure in one of my motors.
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« Reply #91 on: November 26, 2014, 09:22:51 PM »
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That's Far better than my First flight Thumbs Up

And I like that Lane very much, Which is this place ?
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« Reply #92 on: November 26, 2014, 09:28:01 PM »
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Thanks but that was not my first flight Grin. Just my first recorded flight (that was reasonably good). The place is the lawn of my layout clubhouse.
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« Reply #93 on: November 26, 2014, 09:29:44 PM »
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That's a very good place, I should say.
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« Reply #94 on: December 29, 2014, 11:05:04 AM »
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A few updates on my quad.  I have installed a shock dampening setup on my landing skids: 4 smiley balls that have undergone a lobotomy  Giggle  They are doing a really good job as landing gear. My Wild Scorpion 3500 mAh 30C battery is an awesome battery.  Thumbs Up to RCMumbai It gives me around 10 minutes of flight time and barely gets warm. My WolfPack 2200 mAh 25C is not doing so well though. It gets pretty hot after less than 5 minutes of flight and the voltage starts dropping so much that the quad does not even lift at full throttle. I understand that I am running the motor close to it's max draw ( 23C is the load according to eCalc) so I can't really complain. Also, I have not tried equivalent batteries of other brands. The battery is good for quick testing and has a really good mAh/ Indian Rupees ratio. I have replaced the stock SunnySky prop nuts that keep getting loose with M5 Nylon Locknuts from Indian.Hobby.Shop. They are really good and I need to tighten them very slightly only after several flights. I plan to get a FlySky 9x soon and upgrade to APM in my summer vacation. I am considering adding LED lighting soon as well. I will put up some videos once I find someone to take them.
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« Reply #95 on: June 10, 2015, 05:58:55 PM »
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Good Luck and best wishes, well, beginners do face many types of soldering issues, there are some very tiny ones like SMD components,  to some little larger ones, the joint you wanted to make, can be solved by 10W iron, 25W can also solve ur issue, while soldering don't lift the iron or sake at that tip, it will melt because the suurface needs heat too, when both surface and components reaches melting point you get a perfect solder, don't give pulse heat, when you feel it is heated take the solder wire as it also contains flux, for a smooth joint, I am into TV , Motherboards services,  I like to buy any burnt ESC or any Electronics junk , I am also interrested buying all types bad batteries , from anyone of you RC guys,  can refer them to me 9820881300 Stanley Benjamin Dsouza,  Santacruz East, Mumbai
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« Reply #96 on: June 11, 2015, 05:17:20 PM »
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Hi, As you said that, you damage your 3S, well give me some details how did you damage,  next send me the pic via whatsapp on 9820881300,  and 8451077566, I will guide you, how to recover
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« Reply #97 on: June 11, 2015, 05:30:08 PM »
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Hi, Add 1500 Mfd 16Volt capacitor, 2000/16v  to the supply line, see the polarity before connect ing, else it will get hot and burst, just push the lead into the connector, be careful,  that it does not sort, while putting, Hope you will get power, because some batt are bad and unable to give power, use the best configuration chargers, because here you destroy good batteries,  secondly it does not give exact ratings,  do not use Transformer chargers, use SMPS onces, and many smps chargers are bad, in configuration... I give you a fair  example, I have my Tablet, with it Comes a charger,  but I don't use it, because after full charge it drains out quickly,  but when I use lower amp charger of my other mobile it, gives me good long time usage,
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