This is in response to a need by one of our members who bought a Chinese CNC machine with faulty GCode "remote" sender software. He isn't able to place a computer next to his CNC machine so this is how he could use a Raspberry Pi in lieu of a PC.
The GCode sender is bCNC, it would replace Candle. It works on Windows and Linux. The idea is that you put together a RasPi system and connect to the CNC GRBL based controller via USB. You'd use the SD Card reader (also works with WiFi, more on that in a sec) to load the file and send it to the GRBL controller. Here is a github entry that shows how to do this. I'd recommend getting the latest RasPi, version 4 but I suspect any of the earlier versions will work fine. I'd stick with RasPis that have WiFi (3 and 4, iirc). But the real beauty is that with Linux on RasPi, you get networking and thus can just send the GCode files from your PC to the RasPi machine and skip the SDCard route completely.
There are lots and lots of pages describing how to build a RasPi system. Google is your friend. You'll need a mouse, keyboard and monitor - you may have some or all lying around. They don't need to be high end.
Good luck.
The GCode sender is bCNC, it would replace Candle. It works on Windows and Linux. The idea is that you put together a RasPi system and connect to the CNC GRBL based controller via USB. You'd use the SD Card reader (also works with WiFi, more on that in a sec) to load the file and send it to the GRBL controller. Here is a github entry that shows how to do this. I'd recommend getting the latest RasPi, version 4 but I suspect any of the earlier versions will work fine. I'd stick with RasPis that have WiFi (3 and 4, iirc). But the real beauty is that with Linux on RasPi, you get networking and thus can just send the GCode files from your PC to the RasPi machine and skip the SDCard route completely.
There are lots and lots of pages describing how to build a RasPi system. Google is your friend. You'll need a mouse, keyboard and monitor - you may have some or all lying around. They don't need to be high end.
Good luck.