Routine to generate a length X width from existing dimensions.

[70melbatoast]

Hello everyone. Please refer to attached for more information. I hope this is the correct sub for this.

As the title suggests, I would like to pick two dimensions, add a user defined size to both individually (usually, but not always the same dimension for length and width) and have it insert into a drawing using the format of LENGTH"xWIDTH". The kicker is that the returned values must use stacked fractions to match the rest of the drawing. An easier method is welcomed to be explored. I was thinking maybe picking the opening instead of the dims maybe?

Purpose:
I draw storefronts and curtain walls. Part of the job is to generate fabrication drawings for the shop. You'll see that in the attached drawing, there are dimensions that display the DL (or day light opening) of the window frame. This is the dimension from the edge of mullion to edge of mullion. We add a variable dimension to these values to generate the glass size for the opening. Normally we generate these sizes manually, and as expected, we do get some errors from this. We'd like to be able to automate this.

I've tried this using fields, but to no avail. I'm not well versed in LISP to create a routine, nor do I know if it is possible.

I appreciate any input you all may have on this. Thanks in advance.

Using AutoCAD 2025

[Ed Jobe]

If you always have a rectangle like that, I think I would use a dynamic block. All you would need is to insert it and stretch it to the correct dimensions. You would also need to provide a standard for entering the added widths, which I assume is the dado that the glass fits in. It could simply be a (user parameter) property of the block. I have to leave now, but when I get back I could show you a sample using your dwg.

[70melbatoast]

Thanks Ed, I appreciate it. Whatever you are willing to show me is welcome.

[Ed Jobe]

See the attached dwg. After you stretch the wdth and height, you need to do a regen to update the attributes.