G-code for a correction

[seunao]

Hi, I have the following g-code written down which works fine but my problem is the section that shd be a smile i can't seem to get the curve draw so i have had to use a series of lines can anyone advice with this please. The section in red is where i think the problem is

N20 G00 X35.7 Y70.4 T0.6
N30 G01 Z -0.5 F100 S2500 M03 M08
N40 G01 X35.78 Y70.4 N50 G01 X44.2 Y47.8
N60 G01 X70.0 Y46.6
N70 G01 X50.1 Y30.4
N80 G01 X56.8 Y4.9
N90 G01 X38.1 Y18.1
N100 G3 X31.8 Y17.7
N110 G01 X14.4 Y5.4
N120 G01 X21.4 Y27.7N130 G01 X18.9 Y33.6
N140 G01 X0.4 Y46.9
N150 G01 X24.3 Y47.5
N160 G01 X28.0 Y50.7
N170 G01 X35.5 Y70.3
N180 G00 Z 2 N190 G0 X22.1 Y32.9
N200 G01 Z -0.5 F100 M08

N210 G01 G3 X24.5 Y25.9 I15.64075 J0
N220 G01 X24.5 Y25.9
N230 G01 X28.0 Y22.26
N240 G01 X35.4 Y20.5
N250 G01 X40.8 Y21.9
N260 G01 X44.3 Y24.5
N270 G01 X47.0 Y28.1
N280 G01 X48.3 Y31.8
N290 G01 X48.0 Y35.2
N300 G01 X46.2 Y36.04
N310 G01 X44.8 Y35.88
N320 G01 X40.6 Y32.9
N330 G01 X36.5 Y31.3
N340 G01 X33.9 Y31.8
N350 G01 X28.3 Y34.1
N360 G01 X25.3 Y36.0
N370 G01 X23.0 Y35.4
N380 G01 X22.1 Y32.8

N390 G0 Z 2
N400 G0 X45.014153 Y41.970
N410 G01 Z -2
N415 G3 I-2.72 J0
N420 G0 Z 2
N430 G0 X30.917
N440 G01 Z -2
N450 G3 I-2.56 J0
N460 G0 Z 2

Regards

[stevo1]

You say the code works fine but then you have a problem??? What is the problem? Is the machine alarming out? Is it not making the correct path??

The only thing that I see is remove the G1 that is before the G3 in your N210 line. G1 and G3 are the same G-code group which can not be programmed together. You should also be able to use an R instead of I and J.

Stevo

[seunao]

Thanks Steve,

As the code stands without line N210 it runs fine but what i am trying to archieve is 2 arcs about the same points but different radius in effect a smiling face but what i have done is to use a series of lines to create this. Could you point me in the right direction to archieve this please.

Thank you

[mactec54]

Hi seunao

Do you have a DXF file it would be easier to check

[seunao]

Hi,

I have attached the DXF to this file. I have tried to generate the code using a g-code generator but wasn't very successful, so if u could point me in the right direction I would be most greatful.

Thank you

Originally Posted by mactec54 Hi seunao Do you have a DXF file it would be easier to check

[mactec54]

Hi seunao

Opened the Dxf file it seem to be a clean file the next thing I need is what are you using for a cutting tool & are you cutting right through the part for the eyes mouth & right around the outside

[seunao]

Hi thank you for checking this, I'm Cutting onto a wood block and not drilling right through the eyes or mouth, just need 2 cuts, one rough and and finish cut using a 6mm Mill machine

Originally Posted by mactec54 Hi seunao Opened the Dxf file it seem to be a clean file the next thing I need is what are you using for a cutting tool & are you cutting right through the part for the eyes mouth & right around the outside

[Alf0412]

Assuming center of star X0,Y0, cutting mouth only with no compensation (best approximation):

G00 X-5.695 Y-11.2813
G01 Z-.5 F100.
G03 X10.2289 Y-11.4497 R28.2452
X18.7738 Y-6.6219 R31.8564
G02 X22.1672 Y-4.2794 R31.6126
X26.1031 Y-5.2214 R2.8939
X27.8373 Y-11.4248 R10.1605
X2.3171 Y-35.3956 R27.1592
X-24.787 Y-12.5812 R28.5656
X-23.1355 Y-5.0471 R9.5
X-19.3359 Y-3.9715 R3.2157
X-14.8732 Y-6.4509 R21.
G03 X-5.695 Y-11.2813 R36.0081
G01 Z2.5

[mactec54]

Hi seunao

How deep do you want to go in the eyes & mouth & is all the material removed in the mouth to the depth you want or just a profile around it on the inside with the 6mm cutter

[seunao]

Just a Profile around it shd be good, same depth with the rest of the star. Thank you thank you

[mactec54]

Hi seunao

Is this what you want

[seunao]

Yes it is