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( *************************************************************************** )
( * Replacement handle for a "third hand" helper tool.                      * )
( * Metrical RS274/NGC program                                              * )
( * G54 X0/Y0 is at the hinge hole                                          * )
( * G54 Z0 is at the surface                                                * )
( *                                                                         * )
( * Copyright 2009 Michael Buesch <mb@bu3sch.de>                            * )
( * Licensed under the GNU/GPL version 3                                    * )
( *************************************************************************** )


#1	=	6		( cutter diameter )

#10	=	2000	( min^-1 )
#11	=	200		( feed in mm/min )
#12	=	20		( Z-feed in mm/min )

#20	=	3.5		( cutting depth in Z )
#21	=	0.2		( cutting depth stepping )


G17 G40 G49 G80 G90 G94 G61 G21 ( Initial modes )
G0 G54 X0 Y0 S#10
G0 Z20

#100 = 0
G0 X[9 - #1/2] Y[27.5 + #1/2]
G0 Z1
O901 while [#100 lt #20]
	#100 = [#100 + #21]
	O902 if [#100 gt #20] ( if [Z > depth]: Z = depth )
		#100 = #20
	O902 endif

	G1 Z[#100 * -1] F#12
	F#11

	G41.1 D#1
	G1 X10 Y27.5 ( entry move )
	G1 X125
	G1 Y26
	G2 X94.049 Y9.5 I-30.952 J20.780
	G1 X13
	G3 X9.290 Y6.996 I0 J-4
	G1 X5.565 Y-2.244
	G2 X-5.826 Y1.436 I-5.565 J2.244 ( tip )
	G1 X-1.651 Y18.372
	G2 X10 Y27.5 I11.651 J-2.872
	G40 G1 X10 Y[27.5 + #1/2]

	G0 Z1
	G0 X[9 - #1/2] Y[27.5 + #1/2]

O901 endwhile
G0 Z30

M30

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vim: syntax=rs274ngc ts=4