Wait, hold on. Any G-code interface, like Mach3 or a serial terminal to GRBL is a "REPL". The only thing it doesn't have is loops -- which the industrial standa

Wait, hold on. Any G-code interface, like Mach3 or a serial terminal to GRBL is a "REPL". The only thing it doesn't have is loops -- which the industrial standard is to open notepad or vi, and cut and paste your "loop" into the terminal. I use this to face off material in my milling machine or manually move the spindle to "home" to remove the part. So far, I have not killed any birds, fish or whales yet.