So I have made an automated TIG welding setup using Arduino, GRBL, & GRBL panel. I use the GRBL panel to send G code to Arduino via USB. The G code moves the slide to the desired location while welding is carried out. I am experiencing problems similar to what dandaman147 is facing.Whenever I start the arc using HF start, I get a message on the PC saying: " Fatal error on write to GRBL. A device attached to the system is not functioning" .The GRBL panel crashes. I have to remove the USB, disconnect the GRBL panel, then reattach the USB again & connect to GRBL panel again to send the G code. Why does this happen & what would be the solution?Any help regarding this is highly appreciated.
Arcing is never good. What frequency range is the noise and what baud rate are you using - putanother way might low-pass filtering help?