I have 3 DC Motor of different sizes to test and decide which will be the most appropriate for my project.
The circuit I have wired them up to contains an Ardunio (used for its 5V power supply) and potentiometer (used to control the flow of voltage) and the motor being tested. In my final circuit, I will used a 9V battery instead of the Arduino, the potentiometer will be locked to a certain level and replaced by a switch, and a lamp will also be connected to the circuit since, as I discovered in the previous post, a bright light will help the effect.
Grip: Poor (Something will need to be welded to the end to allow the motor to be incorporated into a mechanism)
Firstly, the Motor C struggled to get going with only 5V of power, but I believe that using a 9V battery will assist this.
Secondly, I noticed that potentiometer only had control over the motors at the very end of its turn, making it behave more like a switch than anything else. Although I was able to slow Motor A down slightly with very small turning increments towards the end, I do believe that the RPM is still too great on this motor.
Despite this, Motor B is likely to perform the best for this experiment. Before welding my circuit together, however, I would like to try all 3 motors once more, but with the illusion pattern taped to the top. This will help me to gauge how fast a rotation is required to make the illusion work.