RC India

RC Models => Multirotors => Topic started by: parichya.gautam on January 05, 2015, 11:47:46 PM

Title: Custom Quad Retracts !
Post by: parichya.gautam on January 05, 2015, 11:47:46 PM
Phew ! After 7 continuous hours of self-brainstorming and moments of EUREKA! turned to 'What the hell was I thinking' !
This is the product.

presenting to you custom made Quad Retracts.
Used Metal Geared Servo (4) and other basic stuff combined with my brain :P XD

Enjoy.

And yes, they work fine, the feet take good amount of load , tried bumping it too , no issues :)

Let me know what do you think :)

And yes, video is bein uploaded, will link soon :)
Title: Re: Custom Quad Retracts !
Post by: parichya.gautam on January 06, 2015, 12:38:31 AM
https://www.youtube.com/watch?v=rcYq1uSaXxY&feature=youtu.be (https://www.youtube.com/watch?v=rcYq1uSaXxY&feature=youtu.be)

Video :)
Title: Re: Custom Quad Retracts !
Post by: gunnu on January 06, 2015, 12:49:23 AM
awsome... bro :thumbsup: :thumbsup:
Title: Re: Custom Quad Retracts !
Post by: parichya.gautam on January 06, 2015, 12:55:19 AM
thanks man :D
Title: Re: Custom Quad Retracts !
Post by: gunnu on January 06, 2015, 01:00:26 AM
wlcome..
Title: Re: Custom Quad Retracts !
Post by: parichya.gautam on January 06, 2015, 12:17:08 PM
SK19(something), here it is.
Title: Re: Custom Quad Retracts !
Post by: aman1256 on January 06, 2015, 02:13:01 PM
Well that's a really good video. :D
Regards,
Aman.
Title: Re: Custom Quad Retracts !
Post by: satyagupta on January 06, 2015, 04:09:02 PM
Good stuff :thumbsup:
Title: Re: Custom Quad Retracts !
Post by: saikat on January 06, 2015, 05:17:54 PM
Apart from the "bling factor" what benefit is there ?
Title: Re: Custom Quad Retracts !
Post by: parichya.gautam on January 06, 2015, 05:19:08 PM
Dynamic CG.

Quad is more stable when the legs are retracted :)
Title: Re: Custom Quad Retracts !
Post by: saikat on January 06, 2015, 05:25:38 PM
okay - I'll take your word for it.

How much weight do all your mods add. ?
Title: Re: Custom Quad Retracts !
Post by: parichya.gautam on January 06, 2015, 05:28:26 PM
total weight of the quad with the 5kmAh LiPo is 1.4KG

Seeing that I have 4.4KG of thrust at hand. Pretty decent :D
Title: Re: Custom Quad Retracts !
Post by: sooraj.palakkad on January 06, 2015, 08:24:11 PM
you have 4.4Kg thrust !!! , I don't think so - you can't take the max. thrust in to consideration
Title: Re: Custom Quad Retracts !
Post by: parichya.gautam on January 06, 2015, 08:26:46 PM
alright, then 4Kg it is :D
Still more than enough

Title: Re: Custom Quad Retracts !
Post by: sooraj.palakkad on January 06, 2015, 08:48:22 PM
No man, it is motor max. thrust added together , you have to consider half of that :)
Title: Re: Custom Quad Retracts !
Post by: parichya.gautam on January 06, 2015, 08:52:01 PM
??? each motor has a thrust of 1.1KG with 1045 props... i have a quad so 4kg .

I dont understand what you're saying ???
Title: Re: Custom Quad Retracts !
Post by: SK1701 on January 06, 2015, 09:05:11 PM
 :goodjob: These retracts are really cool!
Title: Re: Custom Quad Retracts !
Post by: parichya.gautam on January 06, 2015, 09:12:08 PM
Thanks :D
Title: Re: Custom Quad Retracts !
Post by: sooraj.palakkad on January 06, 2015, 09:40:27 PM
@parichya , I think we have discussed about thrust calculation of Multirotors on gtalk once
you cannot add up the max. thrust of each motor to calculate your AUW -for the thrust of each motor is 1.1Kg you cant fly a quad with AUW of 4.4 Kg - with these motors your AUW must be around 2.2Kg so that you can hover at Half throttle.
Title: Re: Custom Quad Retracts !
Post by: parichya.gautam on January 06, 2015, 09:42:17 PM
see all i know is that using the previous motors My quad lifted off at approx 65% throttle, with the new ones ( and the new 5000mAh LiPo it lift at approx 35%
Seems pretty descent to me  :)
Title: Re: Custom Quad Retracts !
Post by: sooraj.palakkad on January 06, 2015, 09:56:54 PM
What is your AUW as of now with all these add ons ?
Title: Re: Custom Quad Retracts !
Post by: parichya.gautam on January 06, 2015, 09:59:55 PM
AUW as in ?
Title: Re: Custom Quad Retracts !
Post by: parichya.gautam on January 06, 2015, 10:04:31 PM
assuming it to be the gross weight.

its 1.4KG with everything
Title: Re: Custom Quad Retracts !
Post by: sooraj.palakkad on January 06, 2015, 10:27:08 PM
then it's fine :) you can safely have up to 2Kg (if you have max. thrust of 4Kg)
can I know your motors ?
Title: Re: Custom Quad Retracts !
Post by: parichya.gautam on January 06, 2015, 10:28:33 PM
turnigy aerodrive 1100kv
Title: Re: Custom Quad Retracts !
Post by: parichya.gautam on January 21, 2015, 11:16:54 PM
--------------------QUAD CUSTOM RETRACTS V2.0---------------

=======================================


And here it is again :D


Updated them a bit.
Basic mechanism remains the same.
But modified the main legs and included stoppers to take impacts, along with longer and modified legs that allow landing even with the legs retracted :)


www.youtube.com/watch?v=TikFNLfNZqU (//http://)
Title: Re: Custom Quad Retracts !
Post by: Raj07 on January 21, 2015, 11:26:05 PM
Cool Mod  {:)} {:)} {:)}
I'm certainly gonna include this mod in my next quad   :)
Title: Re: Custom Quad Retracts !
Post by: parichya.gautam on January 21, 2015, 11:27:48 PM
cool :) ensure that you have decent thrust in the setup . its all metal ( assuming you'll go the same way i did ) and adds some weight to it :)
Title: Re: Custom Quad Retracts !
Post by: aman1256 on January 21, 2015, 11:28:18 PM
That looks really good. Will be waiting fir the video :)
Regards,:D
Aman.
Title: Re: Custom Quad Retracts !
Post by: parichya.gautam on January 21, 2015, 11:29:14 PM
I already did :P

the in-flight usage .. yes will do that soon :)
Title: Re: Custom Quad Retracts !
Post by: Ribz on January 22, 2015, 04:45:49 AM
awesome thing ;)
Title: Re: Custom Quad Retracts !
Post by: parichya.gautam on January 22, 2015, 10:07:50 AM
yea that it is :D
Title: Re: Custom Quad Retracts !
Post by: parichya.gautam on January 24, 2015, 04:42:57 PM
www.youtube.com/watch?v=vNP3Fv2XqnE&feature=youtu.be (//http://)

Here is the video with the retracts in action :)
Title: Re: Custom Quad Retracts !
Post by: kiran rc on January 24, 2015, 07:19:50 PM
Good one :thumbsup:
Title: Re: Custom Quad Retracts !
Post by: parichya.gautam on January 24, 2015, 07:58:52 PM
thanks, modifying the quad now a bit ...
Title: Re: Custom Quad Retracts !
Post by: rcpilotacro on January 24, 2015, 10:07:02 PM
cool, see if you can do this with just one servo ? if you do crack it, post the design for us
Title: Re: Custom Quad Retracts !
Post by: parichya.gautam on January 24, 2015, 10:38:57 PM
it can be done with one servo, the requisites are that it should be a powerful one ( around 12KG/cm Stall Torque ) and movement> 60'
I had initially planned that, but thought that ill start from the basic 4-servo model , and later ( when in have the money to buy stuff ) make the one servo model.