Thanks! That all makes sense. We will see in practice what happens 😀

@will one more newbie question: why use the ball bearings? wouldn't be easier to hold the pot in place and snuggle the pendulum arm tight on it? ...

Thank you Will. After you pointed it out it made sense I had to change to 3.593 for 285 degrees.

The setup uses the sketch below. /* Analog input, analog output, serial output Reads an analog input pin, maps the result to a range ...

Thanks Will! This is exactly the kind of practical knowledge that I dont have and that is very helpful to know beforehand. So one bearing on the back ...

I thought about that option but that would restrict me to just be able to measure the period. In the end I would like to plot the angle evolution with...

Not necessarily duplicate the setup. The main idea from the setup that I would like to use is the ability of changing the pendulum length (moving the ...

The amplitude could go up to 5cm so a bit large and depending on the length of the chain whatever moves the chain might need a bit of power.

@frogandtoad The video shows a chain tied at both ends. In my case only the top end is connected to the motor and the chain is hanging vertically alwa...

@jker You are right. Somebody suggested a linear stage

@frogandtoad, @robotbuilder Yes the chain is just like the one in the picture by @robotbuilder. This is another one for sale on Amazon for example (...

Just to add if moving the chain left/right, the chain would hang from a hook and the hook would then be moved by the motor.

@frogandtoad, @robotbuilder Yes the chain is just like the one in the picture by @robotbuilder. This is another one for sale on Amazon for example (...