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  • Which D.C. motor should be used in robo war?

    Himanshu Sidhu

    Member

    Updated: Oct 26, 2024
    Views: 2.7K
    hello engineers......
    i m making a robot for the robowars competitions
    and i need your help for selecting motors for motion and weapon.

    weight of the robot will be around of 25-30 Kg. and
    which motor is perfect for weapons ? [At least 2 weapons one disk ( as used cutter ) and other a hammer or flipper (or both).]
    weight of disk will be around 8 Kg.
    the power will be given to 4 wheels.
    pls suggest some motor specifications along with cost and the market for it.
    other modifications are also welcomed....
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    Replies
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Replies

  • Gurjap

    Member • Apr 11, 2013

    Unless you have uber mechanical manufacturing skills, buy one motor for each of your wheels, to make motion control easy. These are going to be very heavy components, so make sure you take their weight into account.

    A somewhat lighter motor will do to rotate your 'cutter', just make sure it has plenty of torque and low speed, so it does not jam. You'll need a heavy duty servo for your 'hammer'.

    Now let's get to the reason why you posted here. Motor specifications? They don't mean squat in India (assuming you live in India) where we have no standardized hobbyist component stores like RadioShack. I could go on suggesting that you buy this-and-that, but in the end you'll have to hunt down electronics and electrical hardware/repair shops/workshops and see what you can get. I suggest you do that first, before making any long term plans about the evolution of your robot.

    You may have to get your motors custom made. How much that costs you depends on your networking skills and what city you live in.
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  • Anand Tamariya

    Member • Apr 11, 2013

    Motor specifications? They don't mean squat in India (assuming you live in India) where we have no standardized hobbyist component stores like RadioShack.
    I agree with this. Component sourcing is a major impediment in developing electronics stuff in India. Though it's improving with certain sites like embeddedmarkets.com, we still have a long way to go.
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  • riteshbstkr

    Member • Apr 17, 2013

    pmmc
    permenant dc motor
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  • riteshbstkr

    Member • Apr 18, 2013

    High torque permenant geared dc motor
    specification 12v <50rpm
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  • Amith Jose

    Member • Sep 1, 2013

    use wiper motors for the wheels, u can get it at used car junkyards
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  • maitreya1997

    Member • Sep 24, 2015

    hello everyone
    i want to know the motors used in robo wars
    any one knows
    please reply soon
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  • Kaustubh Katdare

    Administrator • Sep 24, 2015

    maitreya1997
    hello everyone
    i want to know the motors used in robo wars
    any one knows
    please reply soon
    I've moved your post to the relevant discussion. Please read all the posts above and see they answer your questions.
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  • Abhishek Rawal

    Member • Sep 24, 2015

    maitreya1997
    hello everyone
    i want to know the motors used in robo wars
    any one knows
    please reply soon
    For agility, you can use #-Link-Snipped-#. It'll be little bit costlier than normal dc motors. Your selection of gear ratio will also play major role in speed of your bot. Remember, more the agility, quicker the brushes will wear out. Overpowering can even burn 'em.
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  • Kaustubh Katdare

    Administrator • Sep 23, 2018

    Posting on behalf of #-Link-Snipped-# -

    i am a fresher i want to build a 15 kgs robo for robowar . can any please guide me like what kind of motors i should use for wheels and weapons , and which material i have to use for body and weapon .

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  • Lyra Lestrange

    Member • Sep 24, 2018

    There are more criteria than one for a battlebot to compete efficiently. Some suitable motors are:

    1. DC series motor (for high starting torque)

    2. Stepper motor(for a certain amount of angle rotation),

    3. BLDC motor(high speed)

    4. Switched reluctance motor

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  • Utkarsh Pal

    Member • Nov 6, 2018

    Hi,

    I am just beginner to robotics and I am building a robot for robowars whose weight is around 30kg pls suggest me some motor for moving.

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  • Adarsh Sahu

    Member • Feb 26, 2019

    I had built a 8 kg war bot using bldc motors for wheels but it failed working.. With  wheels upright and slight contact the wheels showed Movement..can't figure out the problem... Anyone who can help 

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  • Krishna Kumar

    Member • Feb 26, 2019

    wheels geared Motors of 6, 12 and 24 volts are available from 35 RPM to 1000 RPM which can be used to drive the wheels. Select the one with which you get optimum speed with the balance of your robot so that it doesnt topple at full speed. There is no direct relation with whatever voltage you use. May be 36 or 6. It all depend on what motors you use with the said voltage. For weapons you may use servo motors which have precise rotation with speed and torque.

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