F.A.Q. - GearTrax How can I specify a worm gear with a 14-1/2 degree pressure angle and a course (less than 20) diametral pitch? First select the"Fine Pitch Involute 14.5 deg" standard. Then enter the worm gear lead. That value is calculated by dividing PI by the diametral pitch. For example, a 6 diametral pitch lead equals 0.5236" (always inches). If you are working in the module system, multiply PI by the module to get the worm gear lead in millimeters. I am having trouble with a network license for GearTeq, GearTrax or CamTrax. Please review this PDF file: NetHASP Check List   Will GearTrax2009 run with SOLIDWORKS 2010? No, changes in the SOLIDWORKS 2010 API requires a new build of GearTrax. If you are on the Camnetics' support and maintenance plan, the upgrade is free of charge. Will GearTrax2010 run with SOLIDWORKS 2009 and older? Yes, the latest version GearTrax is always backwardly compatible with older versions of SOLIDWORKS.