Expert: Bill DeShawn - 12/13/2005

Question
I found a lisp routine for 2d metal plate weight calculator just for metric units, how to make it work for english units?

Answer
I would have to see the code to answer that question.  I also need to know exactly what weight unit you would need to convert to. Could you email the routine to me at:
bdeshawn@sterling.net
I'll see if I can modify it.  

Another way is to get a free converter online (AutoLISP not necessary)
Here is one:
http://www.engnetglobal.com/tips/toolsapp/default.asp

Here is an online converter:
http://www.footrule.com/1/conversn/convjvsc.htm?sr=homepage&ac=1&jt=1.1.1

If all you need is conversion, there is already something out there that's free and can be accessed in AutoCAD like this:
(defun c:engcnv ()
(command "browser"
"http://www.footrule.com/1/conversn/convjvsc.htm?sr=homepage&ac=1&jt=1.1.1")
(princ)
)

or

(defun c:engcnv () (startapp "c:\\engcnv\\engcnv.exe")(princ))

The above is merely an example.  Actual executable file name and path would have to be used after you install such a program.

Or like I said at first, send me the file to see if I can modify it.  If it's "compiled" I won't be able to.  If it's raw code, I might be able to make it work for you.

Keep in touch
Bill DeShawn
http://my.sterling.net/~bdeshawn