For my scale model hobby I make parts out of 2 component resin. The A & B components need to be measured out on a scale to the required total weight, using the right A to B ratio. I would like to automate the dosing of the resin with 2 peristaltic pumps, driven by two stepper motors + drivers I have laying around from a previous CNC project. The mixing part will be done by a static mixer.
Now the hard part for a beginner like me; - I would like to be able to set the speed and ratio of the two steppers + pumps (rotary encoder + display?) - Also a way to run the steppers independently back and forwards (prime and drain the pumps) - At first just push button operation, but maybe later a way to set desired quantity.
Where to start? couldn't find a real example project with 2 two step drivers coupled by a set ratio.