We recently visited Tony Castruccio at Custom Gear and Machine in Livermore, CA. What a helpful guy, with a beautiful shop! He has many awesome gear cutting machines, just seeing his shop made the trip worth while. Tony explained and showed us different methods of gear cutting, splining, and more. Getting some of his real world experience has been more than helpful, and Tony has been very willing to give advice and share his experience at every step of the process. Thanks Tony!