Write a manual part program for the part shown below Assume

Write a manual part program for the part shown below Assume a uniform depth of 0.75 inch throughout. Ignore cutter compensation. All dimension in inches. Cutter Diameter T1 Diameter (d1) = 0.25 (end mill), T2 Diameter (d2) = 2.0 (drill)

Solution

For this part the drill is only used in the circle of radius R=1[in] so the last instruction will be the drilling of that hole.

Assuming that initialy this part is a rectangle of 7[in]x5[in].

So let\'s start milling:

% 100;   (Main programme)

N5 G17 G70 G90;   (Parameters Setting)

N10 T2 L90;   (Home position)

N15 G00 D2 Z50 M3 S700 X-0.125 Y-0.5; (Position of tool)

N20 G01 Z-0.75;   (Position of cut)

N25 G02 X0.5 Y0.125 I0 J-0.5;   (Circular interpolation clockwise-CW)

N30 G01 X5 F100 M8; (Position of tool)

N35 G02 X5.625 Y-0.5 I0 J-0.5; (Circular interpolation clockwise-CW)

N40 G01 Y-3.5 F100 M8; (Vertical cut)

N45 G03 X6 Y-3.875 I0.5 J0; (Circular interpolation counter clockwise-CCW)

N50 G01 X7.125 F100 M8; (Horizontal cut)

N55 G01 Y-5 F100 M8; (Vertical cut)

N60 G00 Z100 M9; (Final position of tool)

N35 M30;   (Main programme end)

And for the hole:

% 401;   (Main programme)

N5 G17 G70 G90 ; (Parameters Setting)

N10 T1 L90;   (Home position)

N15 G00 Z5 M3 S600 X3 Y-2; (Position of tool)

N20 G01 Z-0.75 F50 M7; (drill)

N25 G00 Z100 M9; (up)

N30 M02;   (Main programme end)