I purchased a phidgets 3531 and 4109 to create a tool where I can measure RPS for various stepper motors in an installation. I am having a difficult time figuring out a way to cleanly mount the encoder in a way that I can rather quickly move the rig to a new stepper motor and test the speed (without...

Thank you for clarifying this. I suspected as much but wasn't sure and was surprised I didn't find tutorials with phidgets about it.

Any suggestions on how to use one of the encoders mentioned above within an arduino world (even with a dedicated arduino for it)? Would the 4109/3531 also require additional phidgets hardware? I'm hoping to get by with only the sensor and as I have 2 on hand. If this is an incredibly difficult task,...