Arc start and endpoint error

[Fritz2000]

I just started working with mastercam x2 and i made a box that has 2 X 5mm arcs. When back plotting this box it works and looks fine but when I use my Deskcnc cam program to cut this box i get an "arc not long enough to reach end point" error on one of the arcs from the Mastercam nc file.

I looked at the g code and i can see that y is 24.449 and after the arc it is 24.451.

When i change 24.449 to 24.451 the error goes away.

Can anyone tell me why Mastercam is making this error in the Nc code? I tried to play around with the tolerances, nothing works and when i regenerate the tool path the error sometimes shifts to the other arc.

 

I have another question ...on the same box i have to drill 9 holes. Back plotting shows all the holes being drilled but only 6 gets drilled. Why?

Any help will be appreciated

[Steve Biehl - Cimquest Inc]

can you post up some samples of code?

[Fritz2000]

I rebooted the computer 10 times yesterday and it reproduced the same errors time after time. Believe it or not today it posts without errors. I have no idea what went wrong.

I still have the drilling problem though. I have 9 holes that need to be drilled. 2 Of these holes drill without a problem but it only drills 3 out of 5 holes on the same z-depth and 1 out of 2 holes on a different z-depth.

It skips some of the holes when I post them together but if i post these holes like 3 at a time and then joins the nc files at the end it works.

Anyone have the same problem?

I will post the codes for the 9 holes

[Guest]

sounds like you have a system problem or a user problem.

 

I'd be interested to see this file if you can share it.

[gcode]

what version of X are you running??

I had a lot of trouble with posted arc output in the very first release of X

[Fritz2000]

Ok this is what i get when posting 9 holes. The version is x2 sp1

 

%

O0000(DRILLTEST)

(DATE=DD-MM-YY - 21-03-08 TIME=HH:MM - 11:15)

(MCX FILE - C:MCAMXMCXLIGHTSENSORWIDE3-29BOTTOM.MCX)

 

(MATERIAL - PLASTIC)

( T100 | 2. FLAT ENDMILL | H0 )

N1 G21

N2 G0 G17 G40 G49 G80 G90

N3 T100 M6

N4 G0 G90 G54 X111.56 Y0. S4583 M3

N5 G43 H0 Z10.

N6 G99 G81 Z-15. R10. F120.

N7 X15.56

N8 G80

N9 X33.56 Y-17.

N10 G99 G81 Z-14. R10. F120.

N11 Y17.

N12 X69.06 Y0.

N13 X93.56 Y-17.

N14 Y17.

N15 G80

N16 X63.5 Y-24.442

N17 G99 G81 Z-9. R10. F120.

N18 X63.495 Y24.55

N19 G80

N20 M5

N21 G91 G28 Z0.

N22 G28 X0. Y0.

N23 M30

%

[Fritz2000]

This is what i should be getting: Posted separately

 

%

O0000(TEST)

(DATE=DD-MM-YY - 21-03-08 TIME=HH:MM - 11:25)

 

(MATERIAL - PLASTIC)

( T100 | 2. FLAT ENDMILL | H0 )

N1 G21

N2 G0 G17 G40 G49 G80 G90

N3 T100 M6

N4 G0 G90 G54 X111.56 Y0. S4583 M3

N5 G43 H0 Z10.

N6 G99 G81 Z-15. R10. F120.

N7 X15.56

N8 G80

N9 M5

N10 G91 G28 Z0.

N11 G28 X0. Y0.

N12 M30

%

%

O0000(TEST)

(DATE=DD-MM-YY - 21-03-08 TIME=HH:MM - 11:29)

 

(MATERIAL - PLASTIC)

( T100 | 2. FLAT ENDMILL | H0 )

N1 G21

N2 G0 G17 G40 G49 G80 G90

N3 T100 M6

N4 G0 G90 G54 X33.56 Y-17. S4583 M3

N5 G43 H0 Z10.

N6 G99 G81 Z-14. R10. F120.

N7 Y17.

N8 X69.06 Y0.

N9 X93.56 Y-17.

N10 Y17.

N11 G80

N12 M5

N13 G91 G28 Z0.

N14 G28 X0. Y0.

N15 M30

%

%

O0000(TEST)

(DATE=DD-MM-YY - 21-03-08 TIME=HH:MM - 11:30)

 

(MATERIAL - PLASTIC)

( T100 | 2. FLAT ENDMILL | H0 )

N1 G21

N2 G0 G17 G40 G49 G80 G90

N3 T100 M6

N4 G0 G90 G54 X63.5 Y-24.442 S4583 M3

N5 G43 H0 Z10.

N6 G99 G81 Z-9. R10. F120.

N7 X63.495 Y24.55

N8 G80

N9 M5

N10 G91 G28 Z0.

N11 G28 X0. Y0.

N12 M30

%

[Guest]

any chance of getting a z2g file?