Are you running the latest version of Mach ?
It is also possible (although not confirmed) that you need to be running a licensed version, not the Demo version as per the .xml you sent me.

Tweakie.

Using the latest version of Mach3 with demo license.
I was considering buying, but if I buy the license and then the problem goes away?

Stand by one, I will remove the license from my version and see just what happens with an unlicensed version.
Back soon.

Tweakie.

hi,
        Thank you very much

Andrea

Removing my license file made no difference so it does not matter if you are using a licensed version or not it should still work OK.

Could you please try with a square image (attached) and see what happens ?

Tweakie.

 Hi, I tried, but the problem is the same.

Hi,the right image is created using the left lane,the left image is created using the right lane.

Is the total width of the created (double) work the same as the Width (X Axis) you specified in the plugin or is it wider ?
When using the plugin are you clicking on Calculate Parameters after making any changes ?

I am running out of ideas now 

Tweakie.

Hi,
    if I double x, the result is this.
Push botton calculations after modification.

Hi,
   sorry I did not understand your question.
The measures after etching are just those specified in the plugin