Page 1 of 2 12 LastLast
Results 1 to 10 of 14

Thread: Where can i purchase RC servos

  1. #1
    Junior Member Newbie
    Join Date
    Apr 2006
    Location
    Bangalore/Ludhiana
    Posts
    9

    Default Where can i purchase RC servos

    Hi i m workin on development of an autonomous mobile robo, i ve choosen hexapod as my first project, but i need to purchase servo motors and also BDMICRO board for programmin , can u please tell me where can i buy rc servos (like hitec-422 standard servo) in india near punjab and related components ?


    Shashank Bhatia

  2. #2
    Junior Member Newbie
    Join Date
    Apr 2006
    Location
    Bangalore/Ludhiana
    Posts
    9

    Default Hey guys,

    Hey at lease let me know where can i purchase servos from ? Ant type of servo motor will do if not Hitec servos.
    Its not what life does to you, its you what you do with it.

  3. #3

    Default hi

    if its just the hexapod why do u need the servos? go for plain simple geared dc motors.

    geared dc motors will usually cost u abt 200-300 rs. with awesome torque

    whereas a servo will cost u anywer abt 1100 to 1400

    you can get both of them at a company called ROBONENCE in bangalore.

    they will even ship it to punjab.

    thier contact info is 080-41526083 talk to mr suraj

  4. #4
    Super Moderator T-1000 docel's Avatar
    Join Date
    Sep 2005
    Location
    BANGALORE
    Posts
    1,441
    Blog Entries
    3

    Default servo

    bhatia wrote:
    Hey at lease let me know where can i purchase servos from ? Ant type of servo motor will do if not Hitec servos.
    Instead of screaming , why dont you search ?
    There are plenty of posts with advice, pointers and addresses. Dont expect others to run and do your work for you.
    [/u]

    I have some Hitec servos @ 1800/- per piece : pm me with DD!
    docel
    ^Anything is possible..
    after YOU prove it!!

    http://bangalorerobotics.tripod.com

  5. #5
    Junior Member Newbie
    Join Date
    Apr 2006
    Location
    Bangalore/Ludhiana
    Posts
    9

    Default

    taknev wrote :
    if its just the hexapod why do u need the servos? go for plain simple geared dc motors.
    Taknev, i m building a hexapod with 3 DOF, now for that i think i hav to go for servos only. I kno one mechanical arrangement using which i can make the hexapod move using only one simple dc motor. But the problem is i dont know hw will i make it take a turn.

    Please do suggest me what can be done to make it turn.

    Thanx
    Shashank Bhatia
    Its not what life does to you, its you what you do with it.

  6. #6
    Junior Member Newbie
    Join Date
    Apr 2006
    Location
    Bangalore/Ludhiana
    Posts
    9

    Default So nice of ur suggestion

    docel wrote :

    nstead of screaming , why dont you search ?
    I hav been searching from last 5 days, i hav got plenty of links and addresses, i was just trying to find out if i can get them near Punjab.

    thanx for ur advice 8O

    Shashank Bhatia
    Its not what life does to you, its you what you do with it.

  7. #7

    Default hi

    hey bhatia,

    c ill tell u the basic difference between servos n dc geared dc ie servos have feedback n dc geared dont have rest everythng is same between them.so ii dont understand how will a 3 dof effect the motors u are using .even the servos can only give 1 dof. for 3 dof ur design will change not the motors.

    and for a thng like hexapod i thnk go ahead n look for designs on hexapod ull find plenty,n come back n implement that design iwith cheaper motors instead of using servos coz servos arent required in projects where u dont need accurate precision n automated motions.

    thats my suggestion rest is up to u

  8. #8
    Junior Member Newbie
    Join Date
    Apr 2006
    Location
    Bangalore/Ludhiana
    Posts
    9

    Default Can we use dc motors for controlled motion

    Thanx tacknev for ur valuable suggestion. Sure hexapod is not such a high percision machine. But can we use PWM signals to control a normal dc motor .
    IN other words , can we use normal dc motor for controlled motion ?
    I hav an impression that servos are used where u need to hav position control.

    i kno hw servo works and also the difference bw a servo and a normal dc motor and even a stepper. But now i need to know hw can i use a normal
    dc motor for a controlled motion.

    Please help me.
    Thanx
    Shashank Bhatia
    Its not what life does to you, its you what you do with it.

  9. #9

    Default hi

    k lets get some points straigt befor we proceed.firstly there is a difference between geared dc and a plain dc.plain dc wont give u sufficient trque and has hi rpm n drwas a lotta current for roboticc application.whereas geared is low rpm n has ver less current draw.

    So use geared n not plain dc.

    Secondly ur doubt how to use geared dc in a controlled way....

    there are many of them like quadrature encoders n stuff... gooogle for em.

    easiest of all is print a wheel with many holes in it.
    put an ir transmitter reciever pair on either side n keep a track of the count.
    so ucan control it almost like a servo except for some inaccuracy which arises some times due to mechanical problems.

    but hexapod wont have dat so dc geared is always advisable.

    rest i have already told u where u get dc geared so now ithe ball is in your court

  10. #10
    Junior Member Newbie
    Join Date
    Apr 2006
    Location
    Bangalore/Ludhiana
    Posts
    9

    Default I will look up into it

    Thanx taknev, i will look into the matter . I will see what can be done, i know abt the torque and the geared motors etc, infact i hav my own workshop i can develop the necessary gears or mechanical systems required. I will contact you lator and tell you about what i have done.

    Shashank Bhatia
    Its not what life does to you, its you what you do with it.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •