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docs: assembly, add information about steppers and their wiring

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Romain Bazile 2021-03-11 12:42:17 +01:00
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docs/assembly_guide.md
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@ -138,7 +138,14 @@ Your setup should look like this. Don't worry about the wiring, we'll have a loo
You will now want to wire the steppers and pump to the terminals on the motor driver board.
If your wires are too short, you can invert the pump and the focus wiring. However, you will have to remember to change the configuration later on.
!!! info
The PlanktoScope **uses only bipolar stepper motors** (with 4 wires coming out, and two coils inside), so you need to identify the two wires working together for each coil. The [RepRap Wiki has great information](https://reprap.org/wiki/Stepper_wiring#.22pair.22_wires_on_4_wire_motors) on how to do this, either with a multimeter or without.
You can find more information about stepper motors and how they work in this [document](http://resources.linengineering.com/acton/attachment/3791/f-00ca/1/-/-/-/-/Stepper%20Motor%20Basics.pdf).
!!! tip
If your wires are too short, you can invert the pump and the focus wiring. However, you will have to remember to change the configuration later on.
!!! tip
Make sure the wires are properly connected by pulling on them a little. They should not come loose.