[Garciabyron218]

Recently got a 4x8 CNC router and I'm new to all this.

Here's my scenario.

Let's say I have a 4"tall x 12"wide piece of wood that I want to engrave a name right in the center.
I know how to set up the CAD/CAM and then export the gcode to mach3.
I'll find the zero on the corner and set up the machine but how do I make sure my piece is square?

Ideal set up would be like pic1 and the word is centered in the piece. But what if I find the zero but the piece is skewed ever so slightly, the words wont be squares like pic2. How do I tell the machine how exactly the piece is oriented so even if the piece is skewed, then the words are too like pic 3

What tool/software/add ons do I need to do this or is it just measuring from the edges of the machine and try to set the piece as best as I can

Any help is appreciated