The Diode has to be rotated correctly, since the cylinder lenses are only to affect the slow axis divergence (expand beam on the slow axis to reduce its divergence). Critical is an on axis placement of the lenses and adjustment of the focal lengths. For this purpose I have developed a miniature adjustable cage mount system for the diode and cylinder lenses. Beyond this I want to try my luck with just 2 convex cylinder lenses to circularize the beam without the aspheric collimator which was the primary reason for developing the cage mount in the first place. And before anyone asks I’m not trying to sell cage mounts.