RichRap 3DR RAMPS 1.4 mount using 8MM threaded rod and M8 nut

This is an alternate way to mount a RAMPS 1.4/Arduino Mega 2650 board to the RichRap 3DR using the 8mm threaded rod and M8 nuts for the spool holder instead of the 3mm stand-offs in the electronics mount which were weak and didn't fit the M3 bolts I had. This is a much simpler way to mount the RAMPS since it's just one M8 nut and it gives your clearance to access your USB port and power port.