Hello, does anyone know the best way to go about connecting 60-70 stepper motors together that can be controlled individually?
Are they ALL the same model number? Are you wanting to connect the armature shafts all together. What does that statement actually mean?
What do you mean for by "connecting them together"?
If you are going to connect them in parallel,
You can't control them individually.
Yes, I am trying to make a machine that can use all 60 stepper motors individually. Do you know any good motor drivers that you can use a lot of stepper motors with or that can stack with an Arduino? Can one Arduino board even handle that or should I use multiple?
When you disclose the motors you want to use, then you can select the controller board, then you can decide the power supply/supplies to use, and then you can decide how many Arduinos to use. So, you see there is a logical sequence for you to follow in order to answer your question.
I'll go a step (heh!) further and say that wiring and communications will drive the decision. Wiring even just step/direction/power lines to 70 motors is not a trivial thing.
Yes, I know which stepper motors I'm using, and the drivers now, but I don't know how to connect 60-70 to an Arduino board. The Arduino mega can't hold that much, do you know how to approach this and how to control this many stepper motors with an arduino or something else?
Yes, and so do you. How many pins are control pins on the driver board you chose? How many digital pins and other pins that can be digital output on your Arduino? Divide the control pin count into the Arduino pin count and there is the number of driver boards that can be controlled by that Arduino board. Report the number, here.
60? Maybe use drivers with a serial interface, like Pololu - DRV8434S SPI Stepper Motor Driver Carrier, Potentiometer for Max. Current Limit
The device features full duplex, 4-wire synchronous SPIcommunication, with daisy chain support for up to 63 devices connected in series.
How many steps/sec does your full set of 60-70 steppers need? Communication might limit your top speeds.
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