i want to make a robot that can pick and carry objects of minimum 1 or 2 kg or higher weight from one place to other so that i can use it to carry objects from one placeto another like a asistant it should be controlled by remote or mobile or laptop also it should have wheels 2 or 4 and size greater than 3 feet. similar to a mobile manipulator or a 4 wd vehicle that has one or two robotic arms with grippers and strong servo motors. it should run for atleast 30 min to 2 hour… hope you will guide me and tell its full process or provide link to such project
Hello @prat and welcome to the RobotShop forum,
First of all, a couple of questions:
- What is the robot’s operating environment (indoors, outdoors, summer, winter, rain etc.)
- Do you have any other requirements like autonomy, remote control or sensors?
- Are you looking for a robot kit/assemble rover or are you planning on building it yourself?
- What is your budget?
The selection of the components will depend on the budget of the project, however, we can suggest checking the following categories:
As you can see the most professional solutions are more robust but have a higher price, however, you can also find good options at an acceptable cost, for example:
This kit includes all the mechanical parts, so you would have to order the electronics separately, or you could also check the RC version which includes a motor driver and radio controller.
Other options are:
Or you can check the wheeled and tracked robots section for more options but note that not all the kits in include the same so make sure you read what’s included. In case you choose a kit without a motor driver you will need o purchase it separately, in order to choose one you’ll have to check the nominal voltage and continuous current of the motors included in the kit and also look for a R/C controller (here are some tips for choosing one but if you have any questions feel free to ask).
To control it remotely you will also need a transmitter and receiver, you can find some good options in the Wireless RC / PWM Servo Controllers. Here’s a good option:
Some kits already include all of the items listed above, plus the wires to connect all together so they can be a bit more pricey but they’ll save you some time, for example:
You will also need a battery (here are some good tips for choosing one according to the amount of time you want the rover to work before having to recharge it) and you’ll also need a battery charger that works with the battery chemistry you choose (and the connector etc.).
Now about the arm, you can find different options in the Robotic Arms & Grippers and Robot Manipulators sections. However, most of the hobby-grade options won’t be able to carry 1-2Kg objects and the more professional manipulators might be an overkill for your project so a good option could be constructing one yourself. For that, you could use the “Robot Arm Torque Calculator” to estimate the torque that your motors will need.
And finally, in case you actually want to build things by yourself, I suggest checking the “How to Make a Robot ” tutorial series.
I hope this information is helpful to you!
Good luck with your project 
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this is my new account previously named(prat) reply to this plz
thanks for replying geraldinebc15… hope you will help me whenever i need in robot making…
please reply regarding all the following
here is the answer for the questions you asked to me-
- my robots operating environment is mostly indoors but some time outdoors
- i want to controll it through bluetooth using mobile… i dont want any sensors in it.
i want only control of robotic arm and the 4 wd vehicle
3.i want to make it on my own as buying it would cost to high…so i want to make it using aluminium.
most of its material i have already. i will need to buy just the arduino and wheels and compatible motors… after buying this i will still have some money for extra requirements…
i also have many lipo and lead acid batteries already…
4.i just want to know how to make its chassis and how to install motors and wheels correctly on it so that after putting weight on it the weight should be on the frame of robot and not on the motors.
THE MOST IMPORTANT PART IS I am not good at coding arduino. so IF I GOT THE CODING SHEET already made it would VERY GOOD… the coding should be according to following points…
I WANT TO CODE THE ARDUINO WITH MOTOR DRIVER/MOTOR SHIELD(what you will suggest i will use it) and want to know should i use 2 motors or 4 motors?
also i have read the article how to select wheels for robot but still i am very pretty sure which one should i use… mostly indoor use and sometimes outdoor(plz suggest)
the arduino should be coded so that to control robot by mobile bluetooth…
i want you to have a look on the drone bot work shop youtube channel-
most of my robot will similar to that but some modifications… he has built it a bit complex but wanna make it as simple as possible and cheap as possible…(no sensors,no ai, just bluetooth controlled.
also please tell me or provide tutorial to how to code differential drive on that robot(arduino)…
the arduino tutorials on youtube are mostly for 2 wheel robot or simple projects. but for 4wd robot as i mentioned is there a tutorial available anywhere? please provide link if available…if not then this is my HUMBLE REQUEST to make its tutorial or provide the coding made by you…
hope you will help me whenever needed…
plz reply…
- my robots operating environment is mostly indoors but some time outdoors
Great! Then you can use any regular flat rubber wheel or maybe with a small tread because you may use it outdoors. That choice would be the easiest to code, unless you want your robot to be able to move side to side instead of turning, then you would need mecanum wheels but you mentioned you didn’t want anything complex so some regular wheel should work for you. You can also check these guides to be able to select the perfect size for your robot:
However, it would be better if you first select your motors, this tool will help you out with that:
Once you know how much torque you need, and taking into account the nominal voltage of the batteries you have, you can choose the motors, for that you could also check the DC Motors Comparison List
Once you have the motors selected you can find some wheels in this section. And you will need to check if they’re compatible with your motors or if you’ll need a coupler, this can help with that:
- i want to controll it through bluetooth using mobile… i dont want any sensors in it.
You can use an Arduino with Bluetooth Module and control the motor driver with the Arduino. Or you could use a Bluetooth motor driver like this one:
Just check if that is compatible with your motors (nominal voltage and current).
- i want to make it on my own as buying it would cost to high…so i want to make it using aluminium.
most of its material i have already.
That is great, then the video you shared as well as the “How to Make a Robot ” tutorial series will help you out. Make sure you check lesson 9 which is about assembling everything as well as choosing materials.
THE MOST IMPORTANT PART IS I am not good at coding arduino.
Don’t worry about it, the great thing about Arduino programming is that it is really easy to understand and it is so widely used that there are tons of different projects available online, you can even find some codes available in the product pages of some rovers, and the Robots section where lots of other members of the community share their projects, for example:
want to know should i use 2 motors or 4 motors?
Since you mentioned you budget is a bit limited then 2 motors are perfectly fine, you’d need 4 motors if you wanted to control each wheel separately (for example if you’re using mecanum wheels) but as you said you don’t want it to be complex 2 wheels will definitely work.
Again, you don’t need to worry about the coding, the hardest part would be starting and trust me there are tons of Arduino rover projects online so that won’t be a problem. For now just focus in getting the right parts and tools and once you have an idea of what you need you can always come back and ask if what you have in mind will work.
Good luck! 
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thanks a lot…u have given me all info that i required this seems to be a perfect guide/trainer…one more request - just stay helping people like us whenever we need help…happy to discuss with u
thanks again…
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