how close to the x/y axis is ok?

I am making an alignment tool to help me get my material in the proper place. I just a piece of .2" thick plexi that fits inside of the metal base portion, on top of the plastic. I want to engrave with a diamond tip bit a simple grid on it so that with it in place I can see through it to the material below to line up. If I make a 6" x 8" grid will there be any problem running the tool to the limits of the x/y or I should make it a little smaller to keep from hitting the limits? Thanks

The homing routine backs off from the hard stops by 0.075" -- there is more room still on the other end of travel -- so you should be fine!

I hate to split hairs but it took you 3 entire minutes to answer that question...... Can't you type faster?!

Thanks again