G51: Its correct use

To whom it may concern:

I have the following simple code I am testing my small CNC machine with GRBL G-code, using Openbuilds control software:

G17 G21 G90 G94 G54
G0 Z0.25
X-0.5 Y0.
Z0.1
G01 Z0. F5.
G02 X0. Y0.5 I0.5 J0. F2.5
X0.5 Y0. I0. J-0.5
X0. Y-0.5 I-0.5 J0.
X-0.5 Y0. I0. J0.5
G01 Z0.1 F5.
G00 X0. Y0. Z0.25

Is it correct to add the G51 line as follows in italics and bold:

G17 G21 G90 G94 G54
G51 X-0.5 Y Z P10
G0 Z0.25
X-0.5 Y0.
G51 X-0.5 Y0 Z0 P10
Z0.1
G01 Z0. F5.
G02 X0. Y0.5 I0.5 J0. F2.5
X0.5 Y0. I0. J-0.5
X0. Y-0.5 I-0.5 J0.
X-0.5 Y0. I0. J0.5
G01 Z0.1 F5.
G00 X0. Y0. Z0.25

I am misusing G51 as the circles are no longer being generated.

Any assistance would be greatly appreciated or, please refer me to another forum or information that can assist me.

And thank you for the great software.

Regards,

GS76

 

Hi Peter,

Thank you for getting back to me.

What would be a possible way of "scaling" the part (the original code) with the current GRBL G-code?

Thank you.

Regards,

GS76

 

Hi Peter,

Thank you for the information and advice.

Regards,

Gary