Added more support/connection brackets

• Basically just added more brackets for structure and support.

• While designing brackets for connecting the X and Y axis, I at first had conjured up a complex, round-about bracket, but then after I finished the design, I realized all I had to do was make some aluminum extrusion and little longer and design a MUCH simpler bracket. So that was like an hour wasted.

• Also adjusted tool head position even more to move it closer to the center of the cutting plate