The G112 code allows 3-D contouring using the X, Y, and Z axes. The G112 code is intended to be used with a Lathe using the C-axis and Live Tooling to program cutter anywhere along a non-rotating part. Refer to Chapter 16 for more information on modal G-codes. Cuts that must cross spindle center can be accomplished with two parallel passes on either side of spindle center.Ĭartesian to Polar conversion is a modal command.

If necessary re-orient the program so the cut does not go over the center of the part. Tool paths should never cross the spindle centerline. Note: Programmed moves should always position the tool centerline. This feature allows face machining programming in the Cartesian coordinate system. Normally a straight line would require many points to define the path, however, in Cartesian, only end points are necessary. G112 also converts X, Y position commands into rotary C-Axis and linear X-axis moves.Ĭartesian to Polar coordinate programming greatly reduces the amount of code required to command complex moves.

While it is active, the control uses the G17 XY for G01 linear XY strokes and G02 and G03 for circular motion. You can purchase our online version of the material and get more for less.The G112 XY to XC coordinate interpolation feature lets you program subsequent blocks in Cartesian XY coordinates, which the control automatically converts to polar XC coordinates. Access to download the Mastercam Home Learning Edition Software installation.Īn optional Teacher Resource is available when purchasing a class set of textbooks/ online versions.Access to online detailed instructional videos for each lesson in the book.

A username and password to get you access to the content of the books online for 1 year.Video Instructions showing how to complete each lesson from start to finish.Instructions for generating G-Code for each lesson.1 lesson on how to create a Solid Model and Creo and use Mastercam's solid chaining features.2 lessons on how to use Mastercam to create C-Axis toolpaths.6 lessons on how to use Mastercam to create Mechanical CAD drawings and Toolpaths for turning parts on a CNC Lathe.This Instructional Training Guide provides all the instructions you need to learn Geometry Creation (CAD) and Toolpath Creation (CAM) for programming a CNC Lathe in Mastercam.

Mastercam lathe programming