How To Have Two Motors on a Single Axis Spinning in Opposite Directions on a CNC Machine
In this tutorial we will demonstrate how to have two motors on a single axis spinning in opposite directions with the use of a hex inverter.

Press Release: BuildYourCNC announces greenBull 4X: 4' x 8' routing area CNC Kit with laser capability
BuildYourCNC is pleased to announce the new greenBull 4X: the first 4'x8' CNC kit to feature dual laser/CNC capability.

CNC Machine Horizontal Work Piece Clamping
This technique comes from one of the users of this site (Robert L). He has come up with a brilliant clamping idea. I get many emails asking, "how do you clamp your workpiece." I would often reply with the screw and wood scrap idea, but when I saw the method below, I knew this was the one to seriously consider. The historic reference is icing on the cake. When he talks about the moving to various positions, he is making reference to g-code. He specifies, assuming that you have zeroed out the correct position of the origin, that you move to x0 y0... and so on. You would type the g-code: g0 x0 y0 - this g-code moves the bit to the (0,0) position on an x,y coordinate system. You would then want to move the bit downward to create the hole. Depending on your z-axis zero position, say the top of the workpiece is at 0, you would use the g-code: g1 z-0.5 and them immediately g0 z.5 which brings up the bit 1/2" above the work piece. Carry on to the next position of 2" from the x origin by typing: g0 x2. Y is omitted from this since you want y to remain at 0. You get the idea... Now read on and enjoy the simple and effective technique.