Maximum and minimum x/z value output of lathe

[Mavyhui]

Hello everyone
I modified the post file of the lathe, and I think it implements the function of outputting the maximum and minimum x/z values at the beginning of the NC file
However, in some cases, the output is not the correct value, for example, the fine turning strategy has downward cutting

I don't know what's wrong

I know that the x direction has to be multiplied by 2, here is the demo

 

bldnxtool$ : 1

pwrtt$     
	  if c1_tool <> 0 & (gcode$ = 1003 | gcode$ = 1002),  #
	     [
            pbld, n$, "(", c1_tool, "MAX", *x_max$, *z_max$,
                "   MIN", *x_min$, *z_min$,")", e$
		 ]
      if gcode$ = 1001, psetup
      pcut_cctyp
      if opcode$=104 | opcode$=105 | opcode$=three | opcode$=16, cc_pos$ = zero
      if gcode$ <> 1001, plast_recd
      pcur_recd
      if gcode$ <> 1003, cc_pos$ = zero
      !opcode$, !tool_op$
      if gcode$ = 1003,
        [
        size1 = rbuf (one, zero)
        rc1 = one
        if rc1 < size1, preadcur_nxt
        if cc_1013$ = zero, cc_pos$ = zero
        ]

T1~T9 Is right
#######################
%
O5000
( c1_tool 1. MAX x_max$ 38. z_max$ 1.5    MIN x_min$ -1. z_min$ -53. )
( c1_tool 2. MAX x_max$ 26.414214 z_max$ -20.4    MIN x_min$ 20. z_min$ -24.414214 )
( c1_tool 3. MAX x_max$ 16. z_max$ 2.    MIN x_min$ 11.4 z_min$ -6. )
( c1_tool 4. MAX x_max$ 37. z_max$ 0.    MIN x_min$ 17.2 z_min$ -53.8 )
( c1_tool 5. MAX x_max$ 0. z_max$ 5.    MIN x_min$ 0. z_min$ -5. )
( c1_tool 6. MAX x_max$ 0. z_max$ 5.    MIN x_min$ 0. z_min$ -35. )
( c1_tool 7. MAX x_max$ 0. z_max$ 5.    MIN x_min$ 0. z_min$ -35. )
( c1_tool 8. MAX x_max$ 27. z_max$ 5.389264    MIN x_min$ 23.917468 z_min$ -20.987457 )
( c1_tool 9. MAX x_max$ 41.279964 z_max$ -57.2    MIN x_min$ 1.320036 z_min$ -57.2 )
( c1_tool 1. MAX x_max$ 117.084663 z_max$ 1.695055    MIN x_min$ 66.096383 z_min$ -105.724517 )
( c1_tool 141. MAX x_max$ 104.276687 z_max$ 1.631299    MIN x_min$ 65.081687 z_min$ -44.359536 )
(TOOL - 1 OFFSET - 1)
(CNMG 12 04 08)
T0101
M8
G97 S600 M03
G0 X76. Z1.5
G71 U3.5 R.5
G71 P100 Q102 U2. W.2 F.25
N100 G0 X-2. S500
G1 Z0. F.15
X50.
Z-34.
X74.
Z-53.
N102 X76.
G0 Z1.5
T0101
G70 P100 Q102
G0 Z1.5
/ M9
/ M5
G0 X125. Z250.
M01
(TOOL - 2 OFFSET - 2)
(N151.2-400-40-5G)
T0202
M8
G97 S300 M03
G0 X54. Z-22.8
G75 R.1
G99 G75 X40.4 Z-19.2 P2000 Q3000 F.2
G0 X54.
T0211
G97 S500
Z-17.586
X52.828
G98 G1 X50. Z-19. F.15
X40.
X40.4 Z-19.2
G0 X52.828
T0202
Z-24.414
G1 X50. Z-23.
X40.
Z-20.4
G0 X52.828
/ M9
/ M5
G0 X300. Z400.
M01
(TOOL - 3 OFFSET - 3)
(N151.2-400-40-5G)
T0303
M8
G97 S3061 M03
G0 X31.4 Z2.
G50 S3600
G96 S302
G74 R.1
G99 G74 X20.6 Z-5.8 P3000 Q3000 F.1
G0 Z2.
T0303
G97 S500
X20.
G98 G1 Z0. F.15
Z-6.
X20.4 Z-5.8
G0 Z2.
T0312
X32.
G1 Z0.
Z-6.
X22.8
G0 Z2.
/ M9
/ M5
G0 X125. Z250.
M01
(TOOL - 4 OFFSET - 4)
(VNMG 16 04 08)
T0404
M8
G97 S2366 M03
G0 X74. Z0.
G50 S3600
G96 S550
G73 U4.209 W.811 R2
G73 P104 Q106 U.4 W.2 F.5
N104 G0 X34.4 S550
G1 X48.4
G3 X50. Z-.8 R.8
G1 Z-15.8
G3 X49.385 Z-16.43 R.8
G1 X40. Z-20.097
Z-23.
X48.4
G3 X50. Z-23.8 R.8
G1 Z-34.
X72.4
G3 X74. Z-34.8 R.8
N106 G1 Z-53.8
G0 Z0.
/ M9
/ M5
G0 X125. Z250.
M01
(TOOL - 5 OFFSET - 5)
(SPOT TOOL  6. DIA.)
T0505
M8
G97 S547 M03
G0 X0. Z5.
Z2.
G1 Z-5. F.05
G0 Z5.
/ M9
/ M5
G0 X125. Z250.
M01
(TOOL - 6 OFFSET - 6)
(DRILL 9. DIA.)
T0606
M8
G97 S1458 M03
G0 X0. Z5.
G83 Z-35. R1. Q15. F.25
G80
/ M9
/ M5
G0 X125. Z250.
M01
(TOOL - 7 OFFSET - 7)
(END MILL 9. DIA. - 0.5R)
T0707
M8
G97 S2626 M03
G0 X0. Z5.
M29 S2626
G84 Z-35. R1. Q15. P200 F1.
G80
/ M9
/ M5
G0 X125. Z250.
M01
(TOOL - 8 OFFSET - 8)
(R166.0G-16MM01-100)
T0808
M8
M05
G0 X54. Z5.389
G76 P010860 Q50 R.02
G76 X47.835 Z-20.987 P1083 Q447 R0. F2.
/ M9
/ M5
G0 X125. Z250.
M01
(TOOL - 9 OFFSET - 9)
(NONE)
T0909
M8
G97 S302 M03
G0 X82.56 Z-57.2
G1 X78.56 F.1
X2.64
X6.64
G0 X74.4
X77.051
/ M9
/ M5
G0 X125. Z250.
M01
(TOOL - 1 OFFSET - 1)
(CNMG 12 04 08)
T0101
M8
G97 S613 M03
G0 X142.718 Z1.695
G50 S3600
G96 S275
G1 X138.718 F.25
X153.74 Z-10.823
G3 X155.393 Z-13.807 R5.8
X155.386 Z-14.009 R5.8
G1 X153.414 Z-42.243
X182.851
G3 X194.451 Z-48.044 R5.8
G1 Z-64.031
G3 X194.444 Z-64.234 R5.8
G1 X192.115 Z-97.576
X206.769 Z-104.564
G2 X211.882 Z-105.711 R4.2
G1 X230.169
X234.169
/ M9
/ M5
G0 X125. Z250.
M01
(TOOL - 141 OFFSET - 141)
(NONE)
T14241
M8
G97 S1341 M03
G0 X130.518 Z-2.869
G50 S3600
G96 S550
G1 Z-4.869 F.5
G2 X116.572 Z-21.364 R22.995
X130.163 Z-37.685 R22.995
G1 X132.992 Z-36.271
M9
M5
G0 X125. Z250.
M30
%

[crazy^millman]

Look to MPLMASTER from this website all the logic you need should be in that post for free.

[Mavyhui]

Thanks
I tried MPLMASTER, but this error also appeared, and I couldn't find the xz value of the output error in the nci file. I think it might be a bug? Maybe G1G2G3 is also read out during the pre-reading of nci, and the XZ coordinates are calculated to get the accurate value
                                                                               I don’t speak English, from Google Translate

[Mavyhui]

Finally I have determined that this problem exists in mastercam 2017, at least there is no such problem in 2019 and above. It has bothered me for 2 months.