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« Reply #50 on: July 06, 2012, 11:19:32 AM »
dreamfly
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Thanks Mr.Ashta for inviting me over to your place.  Lets' try and chatch up this weekend if nothing else happens to come in our way.  I have saved your Mob no.  I'll call u.
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« Reply #51 on: July 06, 2012, 01:19:41 PM »
Dharmik
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@Ashta
Wonderful sir. In auto-level it flies really smooth. Are you using helmet cam?
@dreamfly
Never heard about Enthlapy sir
@hyd_quads
Which motor you are planning to use it? please don't forget to update us.
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« Reply #52 on: July 06, 2012, 01:28:06 PM »
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Dharmik,  Please upload some pic of your quad.  I would like to see the material we use in india for centerplates.  I want to use something very light and strong and below say 50 gms.
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« Reply #53 on: July 06, 2012, 01:31:12 PM »
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where can I purchase carbon fiber hollow tubes with motor mounts in india?  Going in seach of stuff when u don't even know what to ask in hardware shops in india is a real challenge.  The sellers dont even want to speak to you. Angry
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« Reply #54 on: July 06, 2012, 01:38:29 PM »
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thanks dharmic.
i used my crude cap camera
http://www.rcindia.org/electric-planes/crude-hat-cam/
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« Reply #55 on: July 06, 2012, 01:42:53 PM »
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carbon fibre rods tubes
http://www.rcdhamaka.com/index.php?main_page=index&zenid=1c3hq8bmjh4s383cqnsdsotdu1&cPath=56&sort=20a&filter_id=&alpha_filter_id=67

for centre plate
1. 1.2 mm glass epoxy sheest avaia;ble from PCB vendors
2. Poly carbonate roofing sheet
3. Light 3mm ply
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« Reply #56 on: July 06, 2012, 02:01:54 PM »
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Thanks Sir,  also liked your cap camera idea. 
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« Reply #57 on: July 06, 2012, 06:49:09 PM »
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@hyd_quads
Which motor you are planning to use it? please don't forget to update us.

I plan to use NTM propdrive 2826 315W motors (most probably 1000kv, else the 1350kv ones). Thanks.
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« Reply #58 on: July 07, 2012, 09:26:37 PM »
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Just Completed another round of flight.  videos posted



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« Reply #59 on: July 07, 2012, 09:52:27 PM »
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@dreamfly
Sir sorry for being late, i have posted my build log in DIY section. It was like roller coaster ride. I would like to ask you that how do you maintain orientation?
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« Reply #60 on: July 07, 2012, 10:08:31 PM »
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I just trust the board I guess.  But jokes apart, I guess I am in for a crash soon.  I just dont want it to happen on someone.  Dharmik, I think it's about practicing and tuning. That's what I do most of the time on the weekends.  I haven't flown a plane for if I had then orientation would be easy.  If you notice I too am learning how to actually fly like Mr.Ashta.  He is indeed a very good flyer.  I really still dont have the guts to do a nose inward flying.  That my next goal.
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« Reply #61 on: July 07, 2012, 10:24:31 PM »
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This might also help in orientation.  It actually helped me at night

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« Reply #62 on: July 08, 2012, 10:40:28 AM »
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What do you all think about my new scratch-built frame? Built of aluminium two-channel pipes and a fiber central plate. Weighs just 270g. Didn't get any idea about the landing gear yet.
How vibe-resistant will it be? (I'm going to mount the motors using zip (cable) ties ).
Thanks,
Vineet

DSC06836.jpg
Re: TUTORIAL - How to build Multirotor from scratch
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« Reply #63 on: July 08, 2012, 11:10:57 AM »
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That looks sweet.  So the total frame weight is approx 300 gms + 350 gms (motors) + 160 gms (esc's) + 200 gms (lipo) = 1000 gms approx.  Not bad
Why are you mounting your motors with cable ties?  do you feel or heard it's better at reducing vibs?
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« Reply #64 on: July 08, 2012, 11:14:13 AM »
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Vineet, did you paint those aluminium pipes brown or they are sold that way?
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« Reply #65 on: July 08, 2012, 11:23:34 AM »
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Thanks for the instant reply. Smiley
I didn't paint them. un-painted pipes were available, but I bought these so that the paint insulates and prevents any short-circuits. I am mounting using cable ties because the usual nut+bolts available at my local hardware store are heavy. (the slot/flat ones) These bolts contributed around 70g to my last quad. I'm looking for lighter ones, like the philips nuts and bolts sold by HK. I didn't like the idea of using cable ties, myself. BTW, I estimate it to be < 1000g.  Thanks,

Vineet
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« Reply #66 on: July 08, 2012, 11:41:30 AM »
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I use 3mm SS bolts and nuts.  The length can vary based on your fitments
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« Reply #67 on: July 08, 2012, 11:42:35 AM »
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for example the 3mm nut and bolt 5cm lenght I use weighs 4gms each
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« Reply #68 on: July 08, 2012, 11:43:28 AM »
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and hey I ddn't think of the insulation.  You see we have something to learn from each other all the time.  I need to start painting mine.  Thanks for that idea.
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« Reply #69 on: July 08, 2012, 12:34:57 PM »
Dharmik
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Yes every build says something.
@dreamfly
Sir that night flying is awesome. I agree FC plays important role. I have spent more than a month practicing on FMS and now i can hover my quad fine but honestly i can't fly like you and Ashta sir. Hmm.. I have something running in my mind but i am waiting for my KK2 board to arrive.
@Vineet bro
Man that frame is more than perfect! I can see your hardwork, no doubt about it. Your half work is allready done. I can guarantee this quad will fly like a dream. Yes painted arm adds beauty and safety. Now you will have to update us. I am really excited to see that thing flying. I have wrapped color paper on arms. 3 black 1 red.
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« Reply #70 on: July 08, 2012, 12:54:54 PM »
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Thanks Dharmik,  Which FC are you using?  Well I don't plan to do the night flying too often.  I think my eyesight aren't too good cause a couple of times I lost focus and my heart was in my hand. With quads you cant afford to do that.  The light breeze was also a deterrent. 

what's an FMS?
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« Reply #71 on: July 08, 2012, 01:05:10 PM »
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Oh I gues it stands for some Flight ***** Simulator.  Honestly I didn't use a simulator and broke a lot of props in the process.  Do you know where I can download a siumlator for free?Huh?
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« Reply #72 on: July 08, 2012, 01:15:03 PM »
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and hey I ddn't think of the insulation.  You see we have something to learn from each other all the time.  I need to start painting mine.  Thanks for that idea.
I didn't figure that out before I noticed sparks.  ROFL

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« Reply #73 on: July 08, 2012, 01:16:14 PM »
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You can get a free sim here: http://www.realflight.com/free-rf6-demo.html

I have that sim but I'm having a problem hooking up my Tx to that.
Plus, not all sims have a quadrotor. I heard the new Phoenix sim has a quad. I don't think it'll be free.
BTW, thanks for the suggestion about nuts and bolts. Hats Off Yours are pretty light...

Vineet

PS: I'm attaching a screenshot of Realflight 6 demo.

Untitled.jpg
Re: TUTORIAL - How to build Multirotor from scratch
* Untitled.jpg (53.63 KB, 800x437 - viewed 649 times.)
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« Reply #74 on: July 08, 2012, 01:17:50 PM »
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@Vineet bro
Man that frame is more than perfect! I can see your hardwork, no doubt about it. Your half work is allready done. I can guarantee this quad will fly like a dream. Yes painted arm adds beauty and safety. Now you will have to update us. I am really excited to see that thing flying. I have wrapped color paper on arms. 3 black 1 red.

Oh, thank you so much Dharmik bro. Smiley
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