Pros go easy on me, i am new to this field…
I am constructing a basic Rectangular sumo wrestling bot ( you have to push the other bot out of the arena). The bot will have 4 wheels , each wheel is connected to a motor which is combined to another motor of the same specs (11kg-cm, torque) using a chain mechanism, such that their shafts are linked.
Would it help me increase the torque on the overall which will help me generate enough force to push the opponent bot ?
Or is it same as using one motor one wheel mechanism … The Objective is to know whether it will increase the strength of the bot … THanks in Advance !!!
Hi wolf_sandy,
Welcome to the RobotShop Forum. There are many factors involved in building a winning sumo robot, the most important of which are usually:
- Motor torque and robot weight
- Traction / grip
- Driver control / speed
A motor which can product higher torque does not do much if there is no traction or if the robot is too lightweight. A robot which is lightweight and moves too quickly can’t push much. Increasing the torque (and reducing the speed) is usually beneficial.
Hope this helps,
Tractions has always been the biggest trouble for me.
If you are in an arena enviroment then the surface you are driving on is known. Do some google searching from the beginening and look up materials that have the highest frictional coefficient.
Second don’t be afraid of weight in this. Weight addes to the normal force which addes to friction which adds to traction. If you have plenty of time speed is not an issue.
Best way to add weight is lead acid batteries. Which you can then draw more current. Design for motors that take ALOT of current and get wires and motor controllers to match.
When looking at motors I have learned that High RPM motors don’t stall as easy as low rpm motors. Pick a higher RPM motor with a proper gearhead to the design RPM for the output. This will be higher efficentcty with power and will be harder to stall out.
Just some xp points I have ran into in the past. Hope it helps.