Hi there,

I have a defined project where I must spin a 600g mass (10cm diameter and 5cm height) with some motors and at pretty high RPMs. Right now, I am using some 1806-2700Kv motors and 20A ESC for the first beta tests. Although, the system doesn’t have the behavior I was hoping for. The power of the motors is more than enough to spin the mass, the problem is at start-up.
Basically, the ESC is limited by a minimum and maximum pulse, but that minimum pulse equals to a very high rotation for a 600g mass like this, making the motor to slip and never being able to not synchronize properly. Of course, after some time the ESC ends up burning because of the high current peaks withdrawn by the motor. If I help the mass spinning at the start, by hand for example, the motor is capable to accelerate with no problem. Going from around 8000RPM (minimum) to 17000 in 3/4 seconds max. I only need to spin the mass at around 300-500 RPM, from there, the motor is capable to handle the weight.

With this explanation, is there any alternative on the market I could use for this project? I would just need any solution to throttle the motor more linearly at start-up instead of pupping up at such high RPMs that the motor cannot reach synchronization, because even with the minimum pulse the motor is not going under 8000 RPM. Do you have any other suggestion of components that could help me with this issue? Should I need to replace the motors and the ESC? Or would be possible to keep the motors and have another ESCs with different control properties?

Like I said, I would need to achieve high rotations, so I don’t really know if putting some bigger motors with lower KV will be possible. I have also checked 1 or 2 bigger motors with even higher KV, but I believe the problem will be even worse. Am I correct?

Thanks in advance for all the help you can give me. Hoping to hear from you soon!

Best Regards