Question$\backslash$#$2($NC programming$)$

Write a NC code to contour around the periphery of the part shown below. The code would correspond to the last finishing pass where you can assume that the tool is moving tangent to the edges of the part. The code should also perform the drilling of the holes.

Use $\backslash (\backslash$mathrm$\{$F$\}=\backslash$mathbf$\{120\}\backslash$mathbf$\{$~ m m$\}/\backslash$mathbf$\{$m i n$\}\backslash )$ and $\backslash (\backslash$mathrm$\{$S$\}=\backslash$mathbf$\{600\}\backslash )$ RPM$.$ Call this part $\backslash (\backslash$mathbf$\{$E $1\}\backslash )$ and assume that the tool offsets and the fixture offset have been defined.

Finally, recommend the shape, diameter and height of the milling tool.

Use as program zero, the Bottom LEFT corner of the TOP surface. All dimensions in the figure below are in mm $.$