Understanding how to machine 2-sided parts is a concept difficult to grasp for many new CAM users. The more complex the part, the more this process is relied upon for a successful machining job. There are different approaches. All of the reliable methods will involve two or more dowel pins.
Jeff Kozmoski of KOZM Guitars has a reliable technique that he is happy to share with other users; we have documented it below. It involves two ¼” dowel pins. However, Jeff mounts the dowel pins to the part itself as well as to a base fixture plate. His technique holds the stock firm without having to leave tabs holding the part and stock together. Follow the illustrations below to understand this technique. You can also watch the video.
Jeff Kozmoski of KOZM Guitars has a reliable technique that he is happy to share with other users; we have documented it below. It involves two ¼” dowel pins. However, Jeff mounts the dowel pins to the part itself as well as to a base fixture plate. His technique holds the stock firm without having to leave tabs holding the part and stock together. Follow the illustrations below to understand this technique. You can also watch the video.
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The Machine Zero: The dowel pin hole on the neck serves as the Work Zero for machining the top side. The same dowel pin location on the fixture plate is used to zero the machine for cutting the bottom side. Hat’s off to Jeff for designing this excellent “flip-machining” technique!
The Machine Zero: The dowel pin hole on the neck serves as the Work Zero for machining the top side. The same dowel pin location on the fixture plate is used to zero the machine for cutting the bottom side. Hat’s off to Jeff for designing this excellent “flip-machining” technique!
About Jeff Kosmoski
Jeff Komoski is a Mechanical Engineer who has used various CAD packages in his day jobs since the early 80s. These have included Unigraphics, CADKEY, ProE / Creo, Solidworks, and most recently, NX. Jeff currently works for ThermoFisher Scientific, working on electron microscopes and ion-generating columns. Jeff also has experience in numerous product arenas including Aerospace, Medical, Robotics, Color Printers, Scientific Instruments as well as Consumer Products.
Cool Designs from KOZM Guitars!
More about KOZM Guitars
You can learn more about Jeff Kosmoski and KOZM Guitars by visiting his website at www.kozmguitars.com. To learn more about Jeff’s CNC process you can visit the Digital Lutherie page. We want to extend a special thanks to Jeff Kosmoski for allowing us to showcase his work!
Cool project Jeff!
Thank you for allowing us to showcase your work!
Thank you for allowing us to showcase your work!