Dear Sir and Madam,

I have two part in Solidworks. Part A is the boss-extrude of rectangle with the overall length I set (I will set the overall length of part A by global variable) . Now I want to make part B with the overall length is the overall length of part A plus 600 mm. So When I create Part B I want to link to the global variable of part A. please help me the idea How I can do it?

I thinked about to make assembly for part A and B but in my condition of BOM at My companyI can not do it. I need the Link without the assembly of part A and B.

Thank you very much and I am sorry for my bad English.