I recently retrofitted my K40 laser with a new ACR setup which contains a

Controllers Smoothie
,
1

I recently retrofitted my K40 laser with a new ACR setup which contains a Smoothieboard 4X (original, not a clone). It came running a firmware from April 2016, but when I flashed it with Edge firmware from Github built in December the board seems to crash after I send a G28 to the point where the COM port disappears from my Windows 8.1 machine. But when I flashed with Smoothieware’s Master branch using the exact same Config file it seems to work fine. Has anyone run into something similar?

Also, I don’t have an LCD on the controller, should I be using the CNC flavor of Smoothieware or the regular one for the K40 laser conversion?

2

you should use the cnc firmware. and note that G28 is not home in the cnc firmware it is $H same as in grbl. G28 will move to park position. also read the upgrade notes on github.

3

In both cases above I was not using the CNC version. I used the latest config file as the base config and modified it appropriately. Any idea why the Edge version would be crashing and the Master would be OK?

4

The readme talks about an LCD being required for the CNC version - is this real? Or do I just need to have the LCD module enabled in the config even if I don’t have one?