What power source should I use for my homemade CNC/Scara project?
What power source should I use for my homemade CNC/Scara project?
We are exploring a custom CNC solution and need to determine the appropriate power supply. We have several components to consider, including stepper motors, drivers, and a Raspberry Pi. Should we use a single power supply for all devices or separate the Raspberry Pi's power needs with its own dedicated supply?
Frankly, this should be the straightforward section.
It seems you’ll need a 5V supply around 65 watts with some extra capacity. This might fit a standard phone charger power supply, and you could easily find something larger like a 120W unit for a bit more buffer. You’ll also have to use DC-DC converters to reach lower voltages or opt for simple voltage regulators with large heatsinks.
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The four main motors, however, demand significantly higher voltage and power. There are several choices available. You’d likely need a supply in the range of 800-1000W at 36-40V.
This appears to be a typical request; they even reference your specific scenario:
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Not a strict suggestion for all these eBay items—take your time browsing and look for quality parts from trusted makers based on your budget.