is there any way to create a drawing with a formula link, ei. I have square 1x1 and I have a formula linked with this drawing and shows also 1x1, if i change the dimension 2x1 the formula could change also 2x1?... like in excel, please let me know if you know this.
TXS.

You can do this with fields - see a sample drawing:
http://www.cadforum.cz/catalog_en/block.asp?blk=4163

txs for your prompt answer, I was scaling the drwg. out but in fields (chart)nothing happened, i meant i change the dim from 1x1 to 2x2 and chart still 1x2 it didn't change to 2x2. I noticed that chart is a proxy entity, DBX application, but to be honest i don't know how to make it work, should i load it or... what should i do?

This is made via fields, but they work from AutoCAD 2005, don't you have an older version?Kackac2009-02-03 20:18:58

yes I have 2004 that's why it did't work, let's see if I can get newer version and make it work.
txs

i GOT Cad 2009 and I applied what you did and it works excellent, may I ask you what procedures you use?
TXS IN ADVANCE, YOU GUYS ARE AWESOME!!!! 

KACKA, I received your answer very helpful my friend, now I am going to applied on my drawings.
TXS,

[QUOTE=Kackac] This is made via fields, but they work from AutoCAD 2005, don't you have an older version?[/QUOTE]
Kacka,
Is there anyway to make it reverse, like if I change the dimensions from the chart. it'd change the automatically the drwg?