Flashing the HTML will mean the leds will not flash :)
-the firmware-cnc.bin is a build for CNC using a new pendant style LCD display, requires a graphic LCD it also excludes modules required for 3D printing like temperature control and extruders etc. It also uses $H to home as G28 is used to park in real GCode.
+the firmware-cnc.bin is a build for CNC. It has a different layout for the optional LCD more suited to CNC, this layout requires a graphic LCD. This build also excludes modules required for 3D printing like temperature control and extruders etc. It has only 3-axis compiled in. It also uses $H to home as G28 is used to park in real GCode.
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+The regular firmware.bin builds are for 3D printers and exclude CNC moudules such as spindle and drilling cycles. It has 5-axis built in so you can use two extuders out of the box.