How to Make a Self-Starting Motor with Basic Materials

[LAdidadida]

I'm building a simple motor out of basic materials and at the moment its very similar to this one:
http://www.exploratorium.edu/snacks/stripped_down_motor.html

However it won't start unless I give it an initial push. One of the criteria I need to fulfill is that it needs to self-start.

Suggestions on how I might make the motor self-start, reliably as well?

 

[Danger]

All that I can think of for that particular type of motor would be to make sure that the coil is positioned at the very beginning of the 'power on' cycle so it will be attracted to the magnets right away. It still might not have enough momentum to carry through to the next cycle, though. Maybe increasing the mass of the coil would help...
Do keep in mind, though, that the write-up for the design calls for a push to get it going. It isn't intended to be self-starting.
Aside from that stuff, you might have to use switching commutators instead so you have alternating attraction during each half of the cycle.

 

[ravenprp]

There are a few possible solutions to make your motor self-starting. One option is to add a capacitor to your circuit, which can store electrical energy and provide a burst of power to kickstart the motor. Another option is to use a permanent magnet instead of an electromagnet, as this can create a stronger magnetic field and make it easier for the motor to start on its own. Additionally, you could try using a different type of battery or power source with higher voltage or current output, which can also help with self-starting.

Another important factor to consider is the alignment and balance of the motor's components. If the rotor and stator are not properly aligned, it can create resistance and make it difficult for the motor to start. Make sure the rotor is centered and balanced within the stator, and that the brushes are making good contact with the commutator.

You may also want to experiment with the size and shape of your motor's components. A larger or differently shaped rotor and stator can affect the motor's starting capabilities. Additionally, using stronger or lighter materials for the components can also make a difference.

Overall, the key to making a self-starting motor is to optimize the design and components for efficiency and power. With some experimentation and adjustments, you should be able to achieve a reliable self-starting motor with basic materials. Good luck with your project!