[MickeyGarage]

Hi, i have a problem, my Maho 2 days ago work fine, for example G3 X50 y20 Z-10 R50 F300 was go in 3 axis at the same time, yesterday it just stop, when i try to use G3 codes it just stop , no errors no stops, just nothing, but when i use G1 codes everything is fine it can make everything by use XYZ, i checked twice constants and it looks like before saved i check with another 2 Maho's and this programm just work fine, here its not

%PM1
N1 (600E AL RCP_MILLING)
N2 (26-NOV-2020 13:35:45)
N3 (Tools)
N4 (T28 32 Taegutec 7)
N5 G90
N6 G40
N7 G54
N8 (I3DROUGH-MODEL-DOCELOWY-1)
N9 G17
N10 T28 M6
N11 S1557 M13
N12 G0 X-17.288 Y16.43
N13 G0 Z25.
N14 G0 Z0.32
N15 G1 Z-1.31 F3000.
N16 G3 X-16.998 Y16.748 Z-1.32 R4.387 F2727. - it stops here, but only these one Maho other 2 work fine
N17 G3 X-16.741 Y17.094 Z-1.352 R4.387
N18 G3 X-16.52 Y17.463 Z-1.402 R4.387
N19 G3 X-16.335 Y17.852 Z-1.47 R4.387
N20 G3 X-16.19 Y18.258 Z-1.538 R4.387
N21 G3 X-16.085 Y18.675 Z-1.588 R4.387
N22 G3 X-16.022 Y19.101 Z-1.62 R4.387
N23 G3 X-16. Y19.531 Z-1.63 R4.387
N24 G2 X-15.927 Y30.543 Z-1.71 R937.041 .......

when i use planing program like this:

%PM1
N1 (TEST_3X)
N2 (25-NOV-2020 13:08:41)
N3 (Narzedzia)
N4 (T1 GLOWICA-40)
N5 G90
N6 G40
N7 G80
N8 G54
N9 (PLANOWANIE)
N10 G17
N11 T1 M6
N12 S3000 M13
N13 G0 X-48. Y87.
N14 G43 H1
N15 G0 Z25.
N16 G0 Z3.
N17 G1 Z0. F200.
N18 G1 X119. F500.
N19 G2 X132.166 Y73.833 R13.166
N20 G2 X119. Y60.667 R13.166
N21 G1 X-24.
N22 G3 X-37.166 Y47.5 R13.166
N23 G3 X-24. Y34.333 R13.166
N24 G1 X119.

its also fine, can anyone tell me why it was work 2 days ago and now its not? Machine is fine it can work hours on programm with G1 only like this:

%PM1
N1 (600E RCP_MILLING)
N2 (26-NOV-2020 13:29:50)
N3 (Tools)
N4 (T28 32 Taegutec 7)
N5 G90
N6 G40
N7 G54
N8 (I3DROUGH-MODEL-DOCELOWY-1)
N9 G17
N10 T28 M6
N11 S1557 M13
N12 G0 X-17.288 Y16.43
N13 G0 Z25.
N14 G0 Z0.32
N15 G1 Z-1.31 F3000.
N16 G1 X-16.998 Y16.748 Z-1.32 F2727.
N17 G1 X-16.741 Y17.094 Z-1.352
N18 G1 X-16.52 Y17.463 Z-1.402
N19 G1 X-16.335 Y17.852 Z-1.47
N20 G1 X-16.19 Y18.258 Z-1.538
N21 G1 X-16.085 Y18.675 Z-1.588
N22 G1 X-16.022 Y19.101 Z-1.62
N23 G1 X-16. Y19.531 Z-1.63
N24 G1 X-15.98 Y25.037 Z-1.67
N25 G1 X-15.927 Y30.543 Z-1.71
N26 G1 X-15.828 Y35.727 F3000.
N27 G1 X-15.705 Y40.91
N28 G1 X-15.689 Y41.579
N29 G1 X-15.627 Y43.588
N30 G1 X-15.554 Y45.598
N31 G1 X-15.52 Y46.603
N32 G1 X-15.36 Y50.791
N33 G1 X-15.146 Y55.737
N34 G1 X-14.897 Y60.682
N35 G1 X-14.291 Y70.749
N36 G1 X-14.227 Y71.756

[viorel23cnc]

Hello,

The problem is with the post processor. For helical milling the machine accepts "multi turn" arcs. This is an example for a 100 mm radius circle milled with a 20 mm diameter mill:

%PM
N9999
N1 G18 T1 M06
N2 S4000 M13
N3 G0 X0.0 Z0.0
N4 Y2
N5 G0 X-89.9 Y10
N6 G1 Y0.0 F500
N7 X-90
N8 G3 Y-10 I0.0 K0.0 J2 F450 (the J2 is the step of the helix for G18, for G17 is K )
N9 X0.0 Z90 R90
N10 X90 Z0.0 R90
N11 X0.0 Z-90 R90
N12 X-90 Z0.0 R90
N13 G1 X-89.9 F500
N14 G0 Y10
N15 G0 Y150 M9
N16 M30
%


This will work every time. It is very useful for thread milling. You only need one line of code. The same is true when you want to contour any shape of a part in 3 axis, the post processor must generate code in this manner.

One last thing you can try with your code is to slice the part in equal steps .If you use a step of 2 mm per pass and your part is 20 mm tall than start the helix at 2 mm above the part not 1.