I bought 3 motor Nema 23 Bipolaire 425oz.in 4.2A nominal tension 3,78 V I’d like to have suggestion on wich model of motor driver , 3 axis controller and power supply is the best for a homemade router
Hello @Jack1959!
When choosing a stepper motor driver you need to check the nominal voltage, current per coil, and the motor’s type (unipolar/bipolar). According to the specifications you provided you need a bipolar stepper motor driver that works in the 3-4V range and provides at least 4.2A continuous per coil, is that correct?
You can find all the options available in the store in the Stepper Motor Controllers section. I gave it a quick look and found that the ones that work in that voltage range can’t withstand that current but you are welcome to give it a look and see if you can find one that works for your motors.
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I’d like to have suggestion on wich model of motor driver , 3 axis controller and power supply is the best for a homemade router
The voltage range of a stepper motor is often ignored, since they work much better when the supplied voltage is 2-4 times higher. It it absolutely save to look for ~12V drivers able to deliver 4-5A.
The shop offers the TB6600, which is a pretty good match.
A rule of thumb is, to use max. 80% of the rated stepper current. The TB6600 can deliver more and has a good heatsink.
There are stronger drivers, but they are quite expensive.
The 3-axis controller depends on the language of your router files ( grbl or Mach3 are popular).
I’ve also used gcode (Marlin, a 3D-printer language ) on an arduino mega2560 with RAMPS1.3. But that wouldn’t work well with the external stepper drivers.
My CNC now runs with NEMA23 2.4A steppers and a Duet3D WiFi controller. (probably not available at robotshop). It comes with 5 onboard stepper drivers, which are a good match for 2.4A steppers.
As powersupply, I often use meanwell 12 or 24V PSUs. (350W). That’s plenty, when the router has it’s own PSU.
Similar PSU from Robotshop
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