Rick
May 22, 2020, 9:11pm
18
What is the result of the rest of the suggested testing, which has nothing to do with the OS running? How is the connection on the controller side? Are these known-good components?
It’s also worth noting that USB cables are limited to 5 meters (16 feet). If your cable is longer than that, you may have transmission errors or connection problems unless the cable is “active” - IE, re-transmits or amplifies the signal, and plugs into a power adapter.
Other common problems:
poor grounding causes electrical noise
chiller or air compressor on the same circuit as the controller can cause electrical noise or brownouts
If you are using a GCode device with “Home on Startup” enabled, USB connection errors will cause the connect to re-establish, and the device will re-home. This is a very good indication that you have one of the above issues.