// Make a calibration cube that is about 1 inch in every dimension, // but round it to an exact multiple of the wall thickness we are aiming // for (just to be picky). // Note: Use slicr3 and the .3mm-flow saved settings to print. want_x = 25.4*1.3; want_y = 25.4*1.3; want_z = 25.4/4; wall=0.48; layer=0.3; xwalls=round(want_x/wall); xside=xwalls*wall; ywalls=round(want_y/wall); yside=ywalls*wall; zlayers=round(want_z/layer); zside=zlayers*layer; cube([xside,yside,zside]);