Tool length offset issues

[Danno]

Hello;
I'm using Mach 2 but keep having tool offset problems when I have a program that uses multiple tools.
After I make the tool change (manually), then hit "start", the tool length offset is not added !!
Am totally confused
Just before the program request for a tool change, the g-code looks like this example;

G49 z2.0
m05
Goo x0.0 y0.0
m06 T02
M03
s3000
etc.......

I thought my problem was because my post processor was installing G49 before the tool change, but I think it has something to do with the way I have setup Mach.
I've been editing my g-code files manually by removing the "G49" command, before machining, but I don't think this is the proper fix.
Any help would be greatly appreciated.
Dan

[Limpan]

G49 is generally used to CANCEL tool length compensation of the tool in spindle before toolchange and then after toolchange you're supposed to put in G43 H2 (if tool no=2) together with the first Z-axis move after toolchange. For example:

T4 M06
G0 X0 Y0 S800 M03
G43 H4 Z10. (G43 activates length compensation)

hope this can help you,

/Thomas

[Danno]

G43 Hmmm !!
Maybe it's a post processor issue then !! I'm running Dolphin Cad and will post this question there.
Thanks