Thanks MyMind, I will check it.

So if I have the position, lenght and radius set up in F24 with V3 I adjust the height if there is a difference. Lets say I put V3 - 2. That will mean that the diamond will be 2MM higher than the original what i have set up. Right?
And for the CAD soft. You mean that I dont need to do the drawing there but I can do it in an another program and I just open the dxf, dwg etc in cad later just for the zero positioning? Did not try yet.
Anyway thank you very much for your help. I hope you will stay around for a while so I can set up the things properly because it looks your are the only one around who has some knowledge