I wanted to find the smallest line my printer could produce so I made this print produce every combination from .1x.1 to 1x1 in a 10cm x 10cm grid. The y values increment along 1 side while the z values increment on the other. Fidn the smallest one that you're happy with and then count the squares (in both directions) from the .1x.1 to determine it's size.The test lines are printed on top of a .6 wide by .2 high grid which is 10cm x 10cm. The test line is drawn diagonally across each 10mm x 10mm square. The height increases by .1mm along the x-axis and the width increases by .1mm along the y-axis. The square finishing at 10,10mm will be .1mm high and .1mm wide. The square finishing at 40,60mm will be .4mm high and .6mm wide.