I am working on a project that is essentially a physical audio visualizer. It takes in audio data and converts it to servo controls, which will then turn and push up wooden blocks in sync with the different frequencies. The only thing is, I need a servo that can move a decent distance in a small amount of time and is cost effective. Most of the cheaper servos I've found have been primarily for RC car use and do not focus on having a high rotation speed. Are there any good options for me out there? Thanks
Welcome to the forum
Please quantify the distance and speed requirements as "decent distance" and "small amount" mean nothing
Sounds like you're making a mechanical VU meter. How many bands or channels do you intend to represent?
Might you be better off using MOSFET driven DC motors with a cam on the output shaft to drive a connecting rod under the end of the wooden block?
Or maybe push-type solenoids would be fast enough?
What mass?
What distance?
What time?
You need something faster than servos used on cars that travel at 30kph, jump five meters and make rapid 180 degree turns?
Say what?
As @UKHeliBob said, we need numbers. However, distance in a short time is speed, speed in a short time is acceleration, moving mass to speed in a short time is force. So you're looking at a device that can provide a substantial force at rapid accelerations.
That is in opposition to
and is cost effective
So be prepared to spend a lot!
One relatively easy way to move a mass (small or large) in a very short time is pneumatic actuators. They're typically not cheap, and require other components, but it can be done.
Depending on the distance, it may be possible to use solenoids, which cost much less and are easier to use.
Now, if you need to move a variable distance, pneumatics and solenoids aren't suitable, so we're back to looking at servos and linear actuators. You can find fast one, but again, they ain't cheap!
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