Good morning everyone,i would like to create a membrane line just like the image attached (1mm thick hidden-typed line in the middle and 2 continous lines with offset of +/- 0.5mm).If i create the main line first and then offset i have always to modify the type of the offset lines and, whenever i have to modify the position, the curves don't follow the main line and an offset is always to be done.I tried with the comand "multiline" but it seems it doesn't work in LT versions.Someone has a LISP or something for this to be done? thank you in advance to whoever will respond.

This kind of thing has come up several times in the AutoCAD Customization Forum.  Just one example is >here<, but with some Searching you may find others that work better for you.

I don't know what happened to that link.  But another approach that has come up multiple times is [in this case an example in the "base" AutoCAD Forum] >this<.
I think I did something wrong in entering the link in my previous reply.  Try again, >here<.Kent Cooper2025-04-08 19:40:43