is this possible with mach 3?

http://www.youtube.com/watch?v=JJnenOsbCzU

Yup, will take some work but deffinatley possible.

Brett

even that the PCB is not straight?

so you give 3 points, and the toolpad rotate?   

See if this helps.

http://www.machsupport.com/forum/index.php/topic,20301.msg140964/topicseen.html#msg140964

Brett

I read that,
but it is not much info....

i'm not that good... there is not something like a plugin for PCB?

I'm not aware of a plugin that does this but I haven't looked for one either.  You could write a plugin or ask in the plugins board if anyone would be willing to do it.  I'm not sure that you couldn't do it with a VB button or maybe even an existing wizard.  I have never needed this so I really haven't given it much thought but it is defiantly possible.

Brett

If you have two points that you can measure  accurately then you can quickly calc to find the angle and use a G68 or 69....
Can probably use CopyCat ( used with a video camera, CoptCat Manual fcan be found in in members docs ) to easily get two points and modify
the code on the fly for the G68. I never fooled with G68 or G69 in Mach.

There are some macros written so you can touch off the vise jaws and account for them not being perpendicaular to the axis.

A friend wrote his owne touchoff routines to accomplish what you want to do. I don't have them, frankly i don't use them or have any interest.
I still believe in spending a few minutes to square things up ............

Just a few comments in passing by,
RICH

I gave this a bit of thought and came up with a method (which needs refining) and posted my findings here http://www.machsupport.com/forum/index.php/topic,22932.0.html#new

Tweakie.