This viewer shows the operations the machine will take.
Drag the mouse to rotate the 3D model. Hold down 'S' to zoom.
Use LEFT and RIGHT arrows to go to the next or previous G-code instruction
Use UP and DOWN arrows to go to the next or previous layer
To view your own model, drag a gcode file from your desktop and drop it in this window.
This is instruction level visualizer is built on top of Joe Walnes's G-code viewer