I took 2 USB controllers, an aluminum case, a bunch of switches and some wire and came
up with this.
I use Keygrabber from Mach 3 to program the buttons.
I can control (4) 110 V accessories, i.e. the engraver, surface grinder, light, vacuum.
I have a duplicate X2 Speed Control switch from Littlemachineshop.com.
I added Jogging feedhold switches with LED's for taking long 'manual' cuts.
Still have about 10 buttons unused available for future plans.(maybe Mach 4?)
Bought the Logitech USB Attach 3 and the Phillips USB PC Controller at Walmart.
I bought the aluminum enclosure and switches at Mouser.com.
This Panel gives me control over the most used buttons in Mach3 for quickly jogging
the tool into position for a cut then starting the Gcode. The joystick works like in a game,
the farther I push to one Axis or another, the faster it moves. I'll include my tutorial for
programming KeyGrabber below.