Deskcnc post problem

[StephenSebastia]

Deskcnc does not like this gcode.

n2 g00 g91 g28 z0.
n3 goo g91 g28 x0. y0.

Any ideas on why i am having conflict?

[ger21]

I don't think you can have G00 and G28 on the same line.

[belli]

H Stephen,

For starters, you have used an 'o' instead of a zero '0'. Then you have called a G0 but have not provided any X,Y or Z coordinate following this. Try something like this instead:

N2 G91
N3 G0 Z0
N4 G0 X0 Y0

I am not sure what you want to do with the G28 and G91.

Hope this helps,
Greg
www.cncdirect.co.za

[StephenSebastia]

bob cad wrote the gcode. I am quite a newbie when it comes to g code. I need help determining why bobcad would write code that did not make any sense.

[belli]

Hi Stephen,

I can't explain why Bobcad would do this. Use DeskCNC for making your code?

Cheers,
Greg
www.cncdirect.co.za

[Adobe Machine]

G00 or G0 is only used to direct an axis at a predetermined feed rate in the Desk CNC controller.
G91 directs the controller to operate in incremental mode as opposed to absolute mode
(G90 )
G28 is a soft command to "home"
The lines should read :
N10 G90 G28
N11 G00 Z0
N12 G00 X0 Y0
you can elininate line 11 if the controller is set to home ZXY ( machine tab, set up)

Desk CNC uses IS0 001 as the code driver, your NC out put (cam) should have several options that you select as the Code Driver.ISO 001 is one of the most popular.
Use the post processor capability for your M codes and other instructions .
Desk CNC will not accept the letter "o" for zero "0".

Adobe Machine (old as dirt)

[StephenSebastia]

Thank you to everyone for their help. I would still like to see if anyone might be able to help me with bobcad. It wrote the gcode like this and i would like it if i could get bobcad to write it write for my controller but i dont know how. Also i miss typed "goo" it should have been "g00"

Thanks