How To Rotate a Small Cylinder using D.C Motor

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SUMMARY

The discussion centers on the mechanics of rotating a small cylinder using a D.C. motor for a science project. The cylinder specifications include a radius of 4 cm, a length of 15 cm, and a mass between 200-300 grams. Key considerations include determining the moment of inertia and the required angular acceleration to achieve a rotation speed of 50-60 RPM. The suggestion to use two motors at both ends of the cylinder is also mentioned for stability and efficiency.

PREREQUISITES
  • Understanding of D.C. motor specifications and operation
  • Knowledge of rotational dynamics, including moment of inertia
  • Familiarity with angular acceleration calculations
  • Basic electronics for wiring and control of motors
NEXT STEPS
  • Research how to calculate moment of inertia for cylindrical objects
  • Learn about D.C. motor torque and its impact on acceleration
  • Explore motor control techniques for achieving precise RPM
  • Investigate the use of gear systems to enhance torque output
USEFUL FOR

Students working on science projects, hobbyists interested in robotics, and engineers designing small-scale rotational systems.

harjyot
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Okay I hope i can get some quick replies , its urgent
i have a science project coming and what i want to do is rotate a cylinder using a d.c motor
its a relatively small cylinder
radius = 4 cm
length around = 15 cm
mass will be around 200-300 grams
now i can't figure out how can a small d.c motor rotate this ?
I have an attached file showing the schematic or rather what i want to make happen.
please help me with what to do , and how can i make it happen. do i use two motors at both ends ?
the rotations can be relatively small 50-60 rpm.
 

Attachments

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    motor.PNG
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Engineering news on Phys.org
Given the mass and radius, you can get the moment of inertia about the rotational axis.

But you will need to know how fast you want the cylinder to go from 0 to 50-60 rpm. (this will give you the angular acceleration)

You can read more on rotational quantities here

This will also be helpful to know.
 

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