Direction of CNC mold

The four guide bolt holes of the mold embryo are not completely symmetrical, but one is asymmetric. When processing the front and rear molds, it is not clear that there are benchmarks on each template. After processing, the front and rear molds must be aligned with the benchmark, especially for the molds formed by the original mold embryo. When drawing, also pay attention to the direction. 

The direction of the copper core is consistent with that of the front view (top view), while the direction of the core and hidden box is consistent with that of the copper core, while the front mold is opposite. Some decorative lines such as grooves or protrusions on the curved surface are difficult to process due to their narrowness.

 For grooves, we usually need to avoid hollowing them out, that is, milling them deeper, and then adding a loose joint to make a countersunk surface. The boss can only be separated into a loose joint, and the large copper joint is not used to ensure quality.