I installed a CH340 driver on the Zbook (there are multiple download sites available in the internet) and restarted the Zbook. More significantly, the Zbook device manager did not show any Com ports. ![]() The laser discovery window remained blank, and when I manually defined a device with the appropriate Grbl parameters and tried to print a pattern, I received a message saying that Lightburn could not find my laser device.Ĭomparing the Lenovo and ZBook device listings, I found that on the Lenovo the laser device was defined as “CH340 Com4” while the Zbook identified a USB Serial Port with an unknown driver. when I moved to an HP Zbook (also Windows10), I found that Lightburn was unable to find the engraver. ![]() Lightburn was working perfectly with my Lenovo/Windows10 machine and my Atomstack A5 laser engraver.
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