HVAC drawings with LISPS is awesome!
In this tutorial i will show you how to draw a duct branch from the main duct with 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 inner side of branch duct.
-pick outer side of branch duct.
-pick the direction of take-off from the main duct(which is the direction of flow)
See screenshot below:
2-After running the Lisp it will ask you to :
-pick inner side of branch duct.
-pick outer side of 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 illustration see video below-------->>>
Download the Lisp from here
-To download more Lisps for HVAC Design drawings go to:
-If you get any error when extracting the compressed file download the latest winrar Version
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