I don't think it's an issue of short circuiting or problematic parts - I believe my motor was made that way. According to the website, it has a stall torque of 44 ounces per inch. I'm guessing that it is the reason why I cannot rotate my motor freely. I'll look into motors that have less stall torque, which should function you as described - rotating easily and freely.If the motor is restisting rotation because of the electromagnets, it is probably being short circuited. This could be caused by the braking system you were referring to (an eddy current brake). If you are using an eddy brake again, disengaging the brake should be all you have to do to get it to rotate pretty freely.
If the motor isn’t being shorted, the problem is more likely high inertia and/or high friction in the motor or other parts of the buggy. You could try and fix this in a few ways, including:
1. Replacing the problem part(s). If the part you replace is the motor, your buggy might be able to accelerate faster, since the motor won’t have to overcome as much inertia before moving.
2. Disconnect the motor from the axle. If you are using a coupler with set screws, you could loosen the set screws and make you distance setting with the motor disconnected. Then retighten the set screws before the run. This might not work, depending on your configuration.
I hope this helped. Good luck with your buggy!
The latter of your suggestions won't work in my current configruation, lol.