How to Draw Branches with 45° Take-Off

HVAC drawings with LISPS are awesome!

In this tutorial, I will show you how to draw a duct branch from the main duct with a 45° take-off.

do as described below and you find that drawing with LISP is very easy and faster.

1- Download the required lisp from here then add it to Autocad Lisps and run the Lisp by typing "tt" in the command bar then press enter.
2-After running the Lisp it will ask you to :
   -pick the inner side of the branch duct.
   -pick the outer side of the branch duct.
   -pick the direction of take-off from the main duct(which is the direction of flow)
See screenshot below:

3- pick lines as shown in the above screenshot and the Lisp will draw the required 45° take-off for you!

for more illustrations see the video below-------->>>

Download the Lisp from here

-To download more Lisps for HVAC Design drawings go to:

Autocad LISPS for HVAC Design Drawings

-If you get any error when extracting the compressed file download the latest winrar Version