Mastercam will prompt you for the end angle. Press Enter to accept the default of 0.Mastercam will prompt you for the start angle. Mastercam will prompt you for the arc radius. Select Endpoint, then click on the lower left corner of the rectangle.Mastercam will prompt you for the arc center point. Press ESC twice to return to the 'Create' menu.Press Alt-F1 to fit the screen to the newly created rectangle.Mastercam will prompt you for the upper right corner of the rectangle. Mastercam will prompt you for the lower left corner of the rectangle. Now we are ready to draw the pocket outline. It may take a moment for Mastercam to respond to your typing and display it on the screen be patient. Select Z (in the lower part of the menu on the left, initially shown with a value of 0.0000).It will be simplest to draw the rectangle aligned with the X and Y axes, then rotate it 30 degrees to match the drawing.Д«efore drawing the outline of the pocket and island, we should set the drawing Z coordinate to match the bottom of the pocket. Since the center of the island can be located, and it is also the center of the symmetric pocket, we will use it as the part zero location (the coordinate origin). They merely represent the cutter radius.ДЄssume the center island has a bolt hole in its center, which can be used to locate the part.Д¬reating the part program with Mastercam Step 1: Draw the geometry The undimensioned fillet radii may be ignored. The 1' circle in the center of the pocket is an island, to be left standing. The pocket is to be milled to a depth of 0.375', using a 1/4' end mill, in three passes of 0.125'. We will use Mastercam to program an irregular-shaped pocket with the profile shown here. That was included on many Centroid controls shipped between 19. This tutorial is for Mastercam version 3.21, a DOS-based program Irregular Pocketing with Islands in Mastercam v3.21 Introduction Mastercam Pocket Tutorial CNC Services Northwest

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