create a drop-down menu for choice types of 2d pipes

[GiuseCAD81]

Good morning guys are not new to the forum I have been writing for a long time and I always find a lot of useful tips by browsing these pages. . .
I come to the

I would like to write a command that automatically draws me 3 line or poly, at a fixed distance... I need to draw pipes in 2d...

for example from drop-down menu --> pipe --> steel-- nd100.

and once clicked on nd100 draws two distance lines of 114.3mm with a central axis. therefore 3 line at distance of 57.15mm.

the question is that I can't get a sequence of actions with macros... Give me some info? Thank you in advance!

 

[Cristallo]

without disturbing the lisp, just the _mline command (I don't remember it in ita)

you create many multiline styles (one for each diameter) and when you want to draw just the _mline command, style, name of the created style and then drawings.
if you change the track (anco with the grips) you will be updated automatically.

 

[GiuseCAD81]

without disturbing the lisp, just the _mline command (I don't remember it in ita)

you create many multiline styles (one for each diameter) and when you want to draw just the _mline command, style, name of the created style and then drawings.
if you change the track (anco with the grips) you will be updated automatically.

Great crystal, I read now! That's what I did! I created this macro ^c^c_mline;g;zero;sc;114.3;st;piping_style for each diameter, and the result exactly what I wanted, I created the style "piping_style" with three line the 2 external continuous and the central axis drawn point...and just... it works great!

 

[Cristallo]

:finger: pleasure to have been helpful.