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

@himanshu-sidhu-kB2lRB • Oct 26, 2024

Oct 26, 2024

3.5K

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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Gurjap

@gurjap-blPmg9 • 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

@anand-tamariya-DnfjEX • 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

@riteshbstkr-RmIjjB • Apr 17, 2013

pmmc
permenant dc motor
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riteshbstkr

@riteshbstkr-RmIjjB • Apr 18, 2013

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

@amith-jose-d0Z0j4 • Sep 1, 2013

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

@maitreya1997-eeQwmk • 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

@thebigk • 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

@abhishek-fg9tRh • 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

@thebigk • 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

@lyra-28spm9 • 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

@utkarsh-FPbCpm • 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

@adarsh-ruYn2r • 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

@krishna-tHiVR2 • 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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