With the complexity of the cell culture plate dynamics (size/cell type/etc), we needed to finalize how the motor can be interfaced with the bioreactor. Pete’s expertise helped us along the way. He suggested we use a stepper motor which will allow us to make precise movements that can perform the movement arc we need to achieve without being too pricey or complicated. Here is Pete’s diagram of the specific parts needed to interface it to the bioreactor:

The motor will work by rotating a cylindrical object back and forth instead of full rotations. These movement speeds and distances can easily be controlled with Arduino.