How To Draw A Helix In Autocad

Ramos Buttle · Sunday, November 14, 2021

Re: Helix Spiral in AutoCAD LT

You can use the Scripting method to draw a 3dpoly Helix in AutoCAD LT.
But you can draw a 2D Spiral, Helix, Spherical Helix and a Twisted Helix
with the Dynamic Data Exchange (DDE) method with AutoCAD and Excel.
Start AutoCAD or AutoCAD LT and also start Excel and open DDE-Helix.xls
Enable macros in the office document DDE-Helix.xls, and click on the command
button.
Regards, HofCAD CSI.

PS 1 Change the decimal point separator from a comma to a dot.
Windows control panel->local settings->change the "," with a ".".

PS 2 For the DDE method you have to enable macros in the office document.

PS 3 In Excel 2003 you can start the Visual Basic Editor with ALT-F11 or the menu
option 'Tools'->'Macro'->'Visual Basic Editor'.
In Excel 2007 you can start the Visual Basic Editor with ALT-F11 or the menu
option 'Developer'->'Visual Basic'.

You can get the Developer tab with
'Office Button'->'Excel Options'->'Popular'->'Show Developer tab in the Ribbon'
->'Oke'

PS 4 For the DDE method, if you don't use AutoCAD 2010 then you have to change
in the Visual Basic Editor (ALT-F11) at the top of the macro's:

Const ver As Integer = 18

AutoCAD LT => Const ver As Integer = 0
AutoCAD R12 => Const ver As Integer = 12
AutoCAD R13 => Const ver As Integer = 13
AutoCAD R14 => Const ver As Integer = 14
AutoCAD R15 (2000, 2000i en 2002) => Const ver As Integer = 15
AutoCAD R16 (2004, 2005 en 2006) => Const ver As Integer = 16
AutoCAD R17 (2007, 2008 en 2009) => Const ver As Integer = 17
AutoCAD R18 (2010) => Const ver As Integer = 18