Acu-Rite CNC 3500i user manual SET Loop Number 1 IN. DP

11.4 Advanced Programming

X0 Y0
M2
O100
LOOP((1/#103)+1);	* SET LOOP NUMBER (1 IN. DP / .02
	STEP) + 1
G91	* SET INCREMENTAL MODAL
G1 Y(-#102);	* MILL L.H. SIDE
X#101;	* MILL BOTTOM SIDE
Y#102;	* MILL R.H. SIDE
X(-#101);	* MILL TOP SIDE, BACK TO START
	POS'N
X(-#104) Y#104 Z#103;	* STEP UP/OVER IN X-Y AND Z
#101 = #101 + (#104*2);	* ADD STEPOVER TIMES 2 TO LONG
	SIDES
#102 = #102 + (#104*2);	* ADD STEPOVER TIMES 2 TO SHORT
	SIDES
END	* END LOOP
M99

The pocket is milled with a side draft angle of three degrees. Z is set to a step-up increment of .02 in. #152 can be set to a desired value, perhaps to determine the finish on the sidewalls of the pocket. In this example, the pocket always has a depth of 1 in., and a draft angle of 3 degrees. The side lengths and Z step may be changed.

To make this program totally independent, the Z depth and draft angle can be set to variables, and the additional calculations must then be made.

This program requires the length and width of a rectangle, the cut per side on the rectangle, and the number of passes around the rectangle. Variables #150 to #199 are read only. They can be set only in the main program.

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