Here we will learn how to use Mastercam to analyze and design a workpiece and how to machine it on a CNC milling machine.
Mastercam is a CAD/CAM integrated system based on microcomputer platform, focusing on CNC machining programming. Its curve and surface design functions are for CNC machining programming. It has 2-5 coordinate CNC milling programming capability, wire cutting machining programming capability and turning. Machining programming capabilities are widely used in the mold manufacturing industry. This section introduces the use of Mastercam and the operation of CNC machine tools through an example.
The process of designing the workpiece dimensions of Figure 1 is as follows:
Figure 1 Parts drawing
1, geometric modeling
1) Click F file, W to open a new file in the main function area, and create a new file;
2) Click in the toolbar 
with 
, setting the viewing angle and the composition surface as top views;
3) Click C drawing, A arc, R point radius circle in the main function area, input the center point coordinate “0,0â€, radius “15â€, the result is shown in Figure 2;
figure 2
4) Click Z: 0.000 in the sub-function area and enter the Z-axis depth "-15";
5) Enter the coordinates of the center point “0,0†and the radius “30â€. The result is shown in Figure 3;
image 3
6) Click in the toolbar 
with 
, the perspective is set to the front view, and the composition surface is set to the space drawing;
7) Click back to the main function table, click C drawing, A arc, E two-point arc in the main function area, grab the point with the grab point mode U, and enter the radius "15", as shown in Figure 4;
Figure 4
8) Click in the toolbar 
with 
, set the angle of view and the composition surface to the front view;
9) Click Z:-15.000 in the sub-function area and enter the Z-axis depth "60";
10) Click back to the main function table, click C drawing, R rectangle, C center point, input center point coordinates "0, -15", width "15", height "15", as shown in Figure 5;
Figure 5
11) Click back to the main function table, click M trimming, B interrupt, 2 break, and then break the two vertical edges of the rectangle at the midpoint;
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