Live Z Test Pattern

Five 20mm circles extruded .2 mm designed to help with Live Z testing for Prusa 3D Printers. The built in Live Z is hard to see while printing as the nozzle covers the printed item. I recommend letting an entire Dot print then adjust the live Z for the next one, Makes it much easier to narrow down the range as while its printing the next you can easily see what the prior dot looks like.