[Greg McCoy]

Yes!

It is totally possible. I used this for school and on some projects it makes life a lot easier, I'll try and post an example tommorow.

I set up a sheet that Inventor sees as the first sheet in a workbook. I believe it only views the first sheet in a workbook when you use the Link button on the parameters page. The columns in this first sheet include (at least) variable name, value, and unit type. To do the actual calcuation I used other sheets in the workbook and then simply made the cells on the first "Inventor" sheet equal to the proper values.

<edit>
Thanks for the screenshot Clark, I didn't realize you'd posted. After you link the spreadsheet to Inventor you then type the "variable name" which you place in each row of the spreadsheet in the equation field on the parameters dialog box. I think that all of this is explained more clearly in the Inventor help.

Anyway, I'll try to post the spreadsheet tommorow...