[skylanehku]

Hi, very new to cnc so please be gentle, for my first project I did the instructural for the stepper plate, all went well until I tried to run the code, the machine started to position itself then I got an error saying "radius to end of arc differs from radius to startline 33". I have poured over the printout of the code but not knowing much about it I cannot find the problem. Can anyone point me to what I should be looking for?
Thank you
Terry

[10bulls]

Hello Terry,

Hopefully this will help...
CamBam CNC Software - FAQ

Basically the arc commands G2/G3 have two ways of passing the arc center coordinates (I & J).
There is no "standard" way of telling in the g-code so you need to make sure the CAM and controller are using the same method.
Mach3 uses a non-standard G90.1 and G91.1 command to tell which method is used, so using the Mach3 post processor will also help (if you are using Mach3).

Good luck!

Hi, very new to cnc so please be gentle, for my first project I did the instructural for the stepper plate, all went well until I tried to run the code, the machine started to position itself then I got an error saying "radius to end of arc differs from radius to startline 33". I have poured over the printout of the code but not knowing much about it I cannot find the problem. Can anyone point me to what I should be looking for?
Thank you
Terry

[neilw20]

Post your code, and it will soon be identified, with a bit of luck.

[skylanehku]

Hi, thanks for replies, will try and post my gcode.
Terry
Seems I cannot post the file because it is an nc file?

[txcncman]

Either highlight the code and copy and paste it to the text box, save as a file extension TXT file and upload, or ZIP it and upload.

[skylanehku]

Will try to send file as zip.
Terry
Sorry that did not work either.

[ger21]

As 10Bulls said, you need to change your IJ mode. You can do it in General Config, or add a G91.1 to the code like this.

( Made using CamBam - CamBam CNC Software )
( stepper plate 2 10/11/2012 5:51:44 PM )
( T0 : 0.25 )
G20 G90 G64 G40
G91.1
G0 Z0.1
( T0 : 0.25 )
T0 M6
( Pocket1 )
G17
M3 S1000
G0 X0.025 Y0.0
G1 F2.0 Z-0.02

[skylanehku]

Thanks very much Gerry, will give it a try.
Terry

[skylanehku]

Thanks to all for your help, it was just as suggested, the mode for ij was checked wrong.
Really appreciate your help.
Terry