Simple guide to divide square wooden strips diagonally into two triangular ones to reinforce the corners when building boxes.
While printing the rail, the code is programmed to replace the filament at layer 29 only to stop the print and insert two M4 (3mm height) nuts into the hex hole and continue printing, so that the nut remains embedded in the body.
The rail, after alignment of main body to blade, fix to saw plate the guide with two M4 screw or two little knob like the pictures, pay attention the screw not exceed the thickness of rail.

ELEGOO

ELEGOO NEPTUNE 3 Pro

Yes

No

0.2

15/20% for main body, 30% for rail