RC India
Welcome Guest, please login or register.
 
Pages: 1 2 [All]   Go Down
0 Members and 1 Guest are viewing this topic. Topic Tools Topic Tools 
Read
« on: March 15, 2012, 08:44:39 AM »
satyagupta
Heli Lover
Forum Hero

*****

Reputation Power: 29 
satyagupta barely matters.satyagupta barely matters.
Offline Offline

City: Navi Mumbai
State: Maharashtra
RC Skills: Beginner
Posts: 2543
Join Date: Mar, 2012




Hey Guys i am building a quad copter,

I have a Hextronik 24gram 1300kv motor which generates around 432g of thrust.

And my whole copter(including batt and everything) i don't know how but i guess is going to be around 900g to 1000g. I have used normal aluminium rods for the arms and 5mm ply x 3 for the base. (pictures attached)

Now i am confused that whether i selected right motor or not?? do i have to buy a new motor for more thrust or these motors will bail me out??

One more thing, the mounts which are at the base of motors do they have standard sizes? or they differ??

2012-03-03 11.05.06.jpg
Need help with QuadCopter
* 2012-03-03 11.05.06.jpg (106.31 KB, 800x600 - viewed 865 times.)
This post has 1 more images(s)/attachment(s). Please login or register to view them.
Logged

 

Read
« Reply #1 on: March 15, 2012, 08:57:48 AM »
xxkrishxx
Plane Lover
Forum Hero

*****

Reputation Power: 10 
xxkrishxx has no influence.
Offline Offline

City: Bangalore/Vellakovil
State: Tamil Nadu
RC Skills: Beginner
Posts: 834
Join Date: May, 2010

FLY HIGH...!!!



Correct me if i'm wrong
4x432=1728gm,so i think it'll do..
Logged

BalaKrishnan
Mechanical engineer..

Radio:Spektrum Dx6i | Futaba 6EXP | working on coro Avispad | HK450MT kit | Seagull Boomerang 40 | HK 250GT | Upcoming: Easy Star 2 |
 

Read
« Reply #2 on: March 15, 2012, 09:00:07 AM »
satyagupta
Heli Lover
Forum Hero

*****

Reputation Power: 29 
satyagupta barely matters.satyagupta barely matters.
Offline Offline

City: Navi Mumbai
State: Maharashtra
RC Skills: Beginner
Posts: 2543
Join Date: Mar, 2012



hmm well how do you determine how much trust do you need for a copter?? Depending on its weight?
Logged

 

Read
« Reply #3 on: March 15, 2012, 11:43:33 AM »
Swapnil
Plane Lover
Forum Hero

*****

Reputation Power: 20 
Swapnil barely matters.Swapnil barely matters.
Offline Offline

City: Pune
State: Maharashtra
RC Skills: Beginner
Posts: 1755
Join Date: May, 2010

Retreat, Hell!



Well, the thrust should be at least equal to the weight of the copter, shouldn't it?
I guess 1.5 to 2 should be enough thrust to weight ratio.
Logged
 

Read
« Reply #4 on: March 15, 2012, 11:46:20 AM »
satyagupta
Heli Lover
Forum Hero

*****

Reputation Power: 29 
satyagupta barely matters.satyagupta barely matters.
Offline Offline

City: Navi Mumbai
State: Maharashtra
RC Skills: Beginner
Posts: 2543
Join Date: Mar, 2012



Don't know yaar hence asking Cheesy

So you mean thrust/weight should be 1.5 to 2 right?
Logged

 

Read
« Reply #5 on: March 15, 2012, 11:51:37 AM »
Swapnil
Plane Lover
Forum Hero

*****

Reputation Power: 20 
Swapnil barely matters.Swapnil barely matters.
Offline Offline

City: Pune
State: Maharashtra
RC Skills: Beginner
Posts: 1755
Join Date: May, 2010

Retreat, Hell!



No. Thrust should be more than weight i.e

thrust/weight = 1 to 2

Actually 1.5 should be enough unless you are planning to attach a heavy camera or stabilization system later on.
Logged
 

Read
« Reply #6 on: March 15, 2012, 11:53:13 AM »
satyagupta
Heli Lover
Forum Hero

*****

Reputation Power: 29 
satyagupta barely matters.satyagupta barely matters.
Offline Offline

City: Navi Mumbai
State: Maharashtra
RC Skills: Beginner
Posts: 2543
Join Date: Mar, 2012



Thanks swapnil Smiley and for 4 rotors i would need 2 CW and 2 CCW props right?
Logged

 

Read
« Reply #7 on: March 15, 2012, 11:59:07 AM »
Swapnil
Plane Lover
Forum Hero

*****

Reputation Power: 20 
Swapnil barely matters.Swapnil barely matters.
Offline Offline

City: Pune
State: Maharashtra
RC Skills: Beginner
Posts: 1755
Join Date: May, 2010

Retreat, Hell!



Yup! Actually, I've got a quad setup too and will start building in June. The motors I have give 900g thrust each and my AUW won't be more than 1500g!

Which control board do you have?
Logged
 

Read
« Reply #8 on: March 15, 2012, 12:00:26 PM »
satyagupta
Heli Lover
Forum Hero

*****

Reputation Power: 29 
satyagupta barely matters.satyagupta barely matters.
Offline Offline

City: Navi Mumbai
State: Maharashtra
RC Skills: Beginner
Posts: 2543
Join Date: Mar, 2012



I am building my own. Arduino based, got a tutorial google for AeroQuad
Logged

 

Read
« Reply #9 on: March 15, 2012, 12:01:56 PM »
Dharmik
Heli Lover
Forum Hero

*****

Reputation Power: 13 
Dharmik has no influence.
Offline Offline

City: Bharuch
State: Gujarat
RC Skills: Beginner
Posts: 1096
Join Date: Sep, 2011



Please note your AUW(All Up Weight) depends on it. For example one motor generates 500grams of thrust with 9x5 props so 4 motors will generate 4x500= 2000grams. If your AUW is 1000grams your quad will left surface at around 50% of throttle.
Logged
 

Read
« Reply #10 on: March 15, 2012, 12:04:05 PM »
satyagupta
Heli Lover
Forum Hero

*****

Reputation Power: 29 
satyagupta barely matters.satyagupta barely matters.
Offline Offline

City: Navi Mumbai
State: Maharashtra
RC Skills: Beginner
Posts: 2543
Join Date: Mar, 2012



@dharmik thanks for the valuable information

now i think i have made a mistake..
I have this motor:
http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=2069


with this ESC:
http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=6457

Right choice or wrong??? Sad
Logged

 

Read
« Reply #11 on: March 15, 2012, 12:06:15 PM »
Swapnil
Plane Lover
Forum Hero

*****

Reputation Power: 20 
Swapnil barely matters.Swapnil barely matters.
Offline Offline

City: Pune
State: Maharashtra
RC Skills: Beginner
Posts: 1755
Join Date: May, 2010

Retreat, Hell!



I am building my own. Arduino based, got a tutorial google for AeroQuad

And which arduino board and shields are you using?
Logged
 

Read
« Reply #12 on: March 15, 2012, 12:07:10 PM »
satyagupta
Heli Lover
Forum Hero

*****

Reputation Power: 29 
satyagupta barely matters.satyagupta barely matters.
Offline Offline

City: Navi Mumbai
State: Maharashtra
RC Skills: Beginner
Posts: 2543
Join Date: Mar, 2012



Arduino UNO and Arduino Protosheild along with

Gyro and accelro (3 axis both)
Logged

 

Read
« Reply #13 on: March 15, 2012, 12:11:21 PM »
satyagupta
Heli Lover
Forum Hero

*****

Reputation Power: 29 
satyagupta barely matters.satyagupta barely matters.
Offline Offline

City: Navi Mumbai
State: Maharashtra
RC Skills: Beginner
Posts: 2543
Join Date: Mar, 2012



So the motor that i have has max current rating of 7.5 and ESC i have is 18A is there a problem?? Will i burn motors down? Sad crap crap crap
Logged

 

Read
« Reply #14 on: March 15, 2012, 12:14:27 PM »
Dharmik
Heli Lover
Forum Hero

*****

Reputation Power: 13 
Dharmik has no influence.
Offline Offline

City: Bharuch
State: Gujarat
RC Skills: Beginner
Posts: 1096
Join Date: Sep, 2011



Ok i read it, your motor draws max 7.5 Amp with 8x4 props. Technically i read ESC should be around 12-15Amp. Formula i read somewhere was
max amp draws by motor x 1.5 = ESC Amp rating
your ESC is bit overpower but it will work(incase you need to attach 9x5 props). My motor's max amp is 6-12A and i am using 20A ESC and it works fine without any problem.
Logged
 

Read
« Reply #15 on: March 15, 2012, 12:17:55 PM »
satyagupta
Heli Lover
Forum Hero

*****

Reputation Power: 29 
satyagupta barely matters.satyagupta barely matters.
Offline Offline

City: Navi Mumbai
State: Maharashtra
RC Skills: Beginner
Posts: 2543
Join Date: Mar, 2012



Thank god i have 9x5 props phewwwwwwwww... Now the props that i have are CW ones i think i can use them as CCW well. What do you think about this?
Logged

 

Read
« Reply #16 on: March 15, 2012, 12:19:00 PM »
Swapnil
Plane Lover
Forum Hero

*****

Reputation Power: 20 
Swapnil barely matters.Swapnil barely matters.
Offline Offline

City: Pune
State: Maharashtra
RC Skills: Beginner
Posts: 1755
Join Date: May, 2010

Retreat, Hell!



Arduino UNO and Arduino Protosheild along with
Gyro and accelro (3 axis both)

Cool! Where did you get them from? Could you give me the links of the above items?

The motor and ESC combo seems O.K. According to one user, it gives a max. thrust of around 425g with a 9x4.7 prop on 3s LiPo. I guess that should be good enough.

How do you intend to use the CW as CCW?
Logged
 

Read
« Reply #17 on: March 15, 2012, 12:25:34 PM »
satyagupta
Heli Lover
Forum Hero

*****

Reputation Power: 29 
satyagupta barely matters.satyagupta barely matters.
Offline Offline

City: Navi Mumbai
State: Maharashtra
RC Skills: Beginner
Posts: 2543
Join Date: Mar, 2012



How do you intend to use the CW as CCW?

To be frank i dont have any idea yaar... but when i do i will let you know Cheesy the 9x5 props that i have, couldn't similar looking CCW that i can use.

Btw the links

http://simplelabs.co.in/ For arduino and proto's (cheap and good)

http://tenettech.com/ for the rest of the stuffs Smiley (gyros and accelro)


There is one more but i am not able to recollect the name i will post as i remember it Smiley

Got it:

http://www.catsystems.in/
Logged

 

Read
« Reply #18 on: March 15, 2012, 12:27:39 PM »
Swapnil
Plane Lover
Forum Hero

*****

Reputation Power: 20 
Swapnil barely matters.Swapnil barely matters.
Offline Offline

City: Pune
State: Maharashtra
RC Skills: Beginner
Posts: 1755
Join Date: May, 2010

Retreat, Hell!



Thanks for the links!

Why don't you just purchase a CW+CCW prop set? I think sai sir has some.
Logged
 

Read
« Reply #19 on: March 15, 2012, 12:28:41 PM »
satyagupta
Heli Lover
Forum Hero

*****

Reputation Power: 29 
satyagupta barely matters.satyagupta barely matters.
Offline Offline

City: Navi Mumbai
State: Maharashtra
RC Skills: Beginner
Posts: 2543
Join Date: Mar, 2012



Who?? where??? links? please i will buy right away....
Logged

 

Read
« Reply #20 on: March 15, 2012, 12:29:57 PM »
Swapnil
Plane Lover
Forum Hero

*****

Reputation Power: 20 
Swapnil barely matters.Swapnil barely matters.
Offline Offline

City: Pune
State: Maharashtra
RC Skills: Beginner
Posts: 1755
Join Date: May, 2010

Retreat, Hell!



Just a moment...
Logged
 

Read
« Reply #21 on: March 15, 2012, 12:31:15 PM »
Dharmik
Heli Lover
Forum Hero

*****

Reputation Power: 13 
Dharmik has no influence.
Offline Offline

City: Bharuch
State: Gujarat
RC Skills: Beginner
Posts: 1096
Join Date: Sep, 2011



I would suggest you to go with 8x4 CW and CCW props which is suggested on site, they will produce 1600-1700grams of thrust. With 9x5 props your motor will get warm above 60% throttle. Try to reduce quad weight so you can achieve best performance. See if you have all CW props you have to mount two motors upside down and props need to run in opposite direction but it will affect efficiency as they meant for CW direction(check its aerofoil shape). Better go with CW and CCW.
Logged
 

Read
« Reply #22 on: March 15, 2012, 12:34:24 PM »
satyagupta
Heli Lover
Forum Hero

*****

Reputation Power: 29 
satyagupta barely matters.satyagupta barely matters.
Offline Offline

City: Navi Mumbai
State: Maharashtra
RC Skills: Beginner
Posts: 2543
Join Date: Mar, 2012



Dharmik i was thinking the same but not able to find a 8x4 props Sad any seller?
Logged

 

Read
« Reply #23 on: March 15, 2012, 12:38:09 PM »
Dharmik
Heli Lover
Forum Hero

*****

Reputation Power: 13 
Dharmik has no influence.
Offline Offline

City: Bharuch
State: Gujarat
RC Skills: Beginner
Posts: 1096
Join Date: Sep, 2011



Check rcelctro.com, rchobbyaddict.com, rcbazaar.com, rcforall.co.in they all keep pair of such props as Swapnil said.
Logged
 

Read
« Reply #24 on: March 15, 2012, 12:41:12 PM »
Swapnil
Plane Lover
Forum Hero

*****

Reputation Power: 20 
Swapnil barely matters.Swapnil barely matters.
Offline Offline

City: Pune
State: Maharashtra
RC Skills: Beginner
Posts: 1755
Join Date: May, 2010

Retreat, Hell!



Here you go!

http://rchobbyaddict.com/product_info.php?products_id=377&osCsid=5f1b34f02415234bb17cf65b7ca4beca

http://rcelectro.com/index.php?page=shop.product_details&flypage=flypage.pbv.v5.tpl&product_id=178&category_id=7&option=com_virtuemart&Itemid=7
Logged
 

Read
« Reply #25 on: March 15, 2012, 12:42:20 PM »
satyagupta
Heli Lover
Forum Hero

*****

Reputation Power: 29 
satyagupta barely matters.satyagupta barely matters.
Offline Offline

City: Navi Mumbai
State: Maharashtra
RC Skills: Beginner
Posts: 2543
Join Date: Mar, 2012



Swap bro the rchobbyaddict.com dont have stock for the props Sad
Logged

 

Read
« Reply #26 on: March 15, 2012, 12:44:31 PM »
Dharmik
Heli Lover
Forum Hero

*****

Reputation Power: 13 
Dharmik has no influence.
Offline Offline

City: Bharuch
State: Gujarat
RC Skills: Beginner
Posts: 1096
Join Date: Sep, 2011



Yes and this one too
http://thehobbyshop.in/index.php?main_page=product_info&cPath=11&products_id=30
Logged
 

Read
« Reply #27 on: March 15, 2012, 12:46:19 PM »
satyagupta
Heli Lover
Forum Hero

*****

Reputation Power: 29 
satyagupta barely matters.satyagupta barely matters.
Offline Offline

City: Navi Mumbai
State: Maharashtra
RC Skills: Beginner
Posts: 2543
Join Date: Mar, 2012



THS is too costly... i guess rcelectro is good.. I also wanted heat shrinks bad they dont have heat shrinks Sad
Logged

 

Read
« Reply #28 on: March 15, 2012, 01:01:08 PM »
satyagupta
Heli Lover
Forum Hero

*****

Reputation Power: 29 
satyagupta barely matters.satyagupta barely matters.
Offline Offline

City: Navi Mumbai
State: Maharashtra
RC Skills: Beginner
Posts: 2543
Join Date: Mar, 2012



RCeletro user registration disabled y?? Sad
Logged

 

Read
« Reply #29 on: March 15, 2012, 01:22:18 PM »
Swapnil
Plane Lover
Forum Hero

*****

Reputation Power: 20 
Swapnil barely matters.Swapnil barely matters.
Offline Offline

City: Pune
State: Maharashtra
RC Skills: Beginner
Posts: 1755
Join Date: May, 2010

Retreat, Hell!



Well, you can just call the owner (VK). I've always had awesome service and help from him.
I generally get the package from him within 2-3 days. I booked my order via sms this monday and got it on wednesday!
Logged
 

Read
« Reply #30 on: March 15, 2012, 02:14:58 PM »
satyagupta
Heli Lover
Forum Hero

*****

Reputation Power: 29 
satyagupta barely matters.satyagupta barely matters.
Offline Offline

City: Navi Mumbai
State: Maharashtra
RC Skills: Beginner
Posts: 2543
Join Date: Mar, 2012



Nice yaar.. But where is the contact number??
Logged

 

Read
« Reply #31 on: March 15, 2012, 04:49:57 PM »
satyagupta
Heli Lover
Forum Hero

*****

Reputation Power: 29 
satyagupta barely matters.satyagupta barely matters.
Offline Offline

City: Navi Mumbai
State: Maharashtra
RC Skills: Beginner
Posts: 2543
Join Date: Mar, 2012



Thank you guys Swap and Dharmik i bought CW and CCW props from rcelectro.com

you both deserve +1
Logged

 

Pages: 1 2 [All]   Go Up
Jump to:  

Related Topics
Subject Started by Replies Views Last post
Quadcopter
Self-designed, DIY and College Projects
AyushGupta 16 11552 Last post June 23, 2012, 10:04:53 AM
by indianuav
4 MOTORS AND 4 ESC 'S FOR QUADCOPTER FOR SALE
For Sale
hemanthtguru 13 9216 Last post August 08, 2011, 06:04:46 PM
by RotorZone
my quadcopter build
Multirotors
jeevan reddy 8 6798 Last post March 24, 2013, 06:34:49 PM
by atulrajguru9
quadcopter construction
Multirotors
jeevan reddy 2 4076 Last post April 12, 2012, 10:46:17 AM
by jeevan reddy
ST360 ARFT Quadcopter Kit (Almost Ready To Fly Quadcopter)
Multirotors
rchobbyaddict 9 7978 Last post January 14, 2014, 10:57:10 AM
by rchobbyaddict