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Piping/Ducting for HVAC 1.0.0

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About This File

This is a program made by ASMI and modified by Ronso in this thread. This is a genius free LISP Program and can be used in many trades, but has most usefulness in the HVAC, Mechanical, and Piping industries for drawing 2D CAD designs. It allows you to create Duct, Pipe, and Segmented Duct or Piping with automatic elbow or fittings to accurate dimensions via some initial input at the command prompt.


The programme in action



Function Syntax: DUCT

For instructions on how to run the program see here.

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Very nice program!

Are you interested in writing a function that draws a rectangle from specified width and I can snap to a line?

Similar to your piping function but fewer required parameters?

what I'm looking for is, I will draw line as a centerline then follow that line with a rectangle up the center.

I will create a button that initiates your function with the rectangle of the desired width. 

Not sure if its making sense? Your Piping function does what I need but I only use specific width rectangles.

Thanks in advance.

Tom Matson 

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