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Spiral

Printed From: CAD Forum
Category: EN
Forum Name: AutoCAD
Forum Description: Discussion about AutoCAD and AutoCAD LT, viewers, DWG and DWF formats, Design Review, AutoCAD 360, add-ons
URL: https://www.cadforum.cz/forum_en/forum_posts.asp?TID=7729
Printed Date: 31.May.2026 at 20:36


Topic: Spiral
Posted By: xrayrays
Subject: Spiral
Date Posted: 26.Apr.2012 at 08:58
How to make spiral in Autocad 2004?

i want to create simple spiral ladder. 


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Thanks,



Marcuel Gubaynon

Technical/Draftsman

Philippines


Replies:
Posted By: heinsite
Date Posted: 26.Apr.2012 at 09:17
A simple Google search would have lead you right back to this CADforum site:

http://www.cadforum.cz/cadforum_en/qaID.asp?tip=835

Google is your friend.  Learn to use it.  And also look at the Tips: section right below this message!  They're related to your Subject line.

Dave.


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Dave Hein, P.E.
Hawaii District Engineer
Kona International Airport
AutoCAD Certified Professional
Autodesk Expert Elite

Posted By: xrayrays
Date Posted: 26.Apr.2012 at 09:23
thanks dave,

I also search some slp but they don't put some instruction on how to use it.


btw dave, how to use the spiral.slp?


-------------
Thanks,



Marcuel Gubaynon

Technical/Draftsman

Philippines

Posted By: philippe JOSEPH
Date Posted: 26.Apr.2012 at 09:29
Hello, search "SPIRAL LADDER DWG" in Google.

Posted By: heinsite
Date Posted: 26.Apr.2012 at 09:38
Look at the bottom of this page... Tip 835.  It tells you.  You download the .lsp (LISP) file.  Then you use the APPLOAD command to load it.  Then you run it like any other command by typing SPIRAL on the command line.

Dave.


-------------
Dave Hein, P.E.
Hawaii District Engineer
Kona International Airport
AutoCAD Certified Professional
Autodesk Expert Elite

Posted By: xrayrays
Date Posted: 26.Apr.2012 at 09:42
thanks again. 

-------------
Thanks,



Marcuel Gubaynon

Technical/Draftsman

Philippines

Posted By: philippe JOSEPH
Date Posted: 26.Apr.2012 at 10:10
You have to load the 2 lsp files : 3DSPIRAL.lsp AND SOL_SPRING.lsp.
Then you launch the command 3DSPIRAL to create the centerline of your spiral with the dimensions asked by AutoCAD, then you launch the command SOL_SPRING to create your 3D volume with the dimensions asked by AutoCAD.
It's possible to create a modifiable spiral with the command HELIX by openning the properties panel.
On that helix you can use the command EXTRUDE to create your volume along the path defined by the  helix ( that 3D volume is not modifiable with the properties panel ).
Ask form more.

Posted By: xrayrays
Date Posted: 26.Apr.2012 at 12:26
its not 3d, its 2d


-------------
Thanks,



Marcuel Gubaynon

Technical/Draftsman

Philippines

Posted By: John Connor
Date Posted: 26.Apr.2012 at 12:54
Create the 3D spiral specifying the base and top radius.  However, when it comes to height make this "0" which should give you a flat 2D spiral.

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"Humans have a strength that cannot be measured. This is John Connor. If you are reading this, you are the resistance."

<<AutoCAD 2015>>

Posted By: xrayrays
Date Posted: 26.Apr.2012 at 12:56
if not flat?

-------------
Thanks,



Marcuel Gubaynon

Technical/Draftsman

Philippines

Posted By: John Connor
Date Posted: 26.Apr.2012 at 13:01
I have no idea what "if not flat" means.  If the height is given as "0" of course its flat!  You're creating a spiral not a helix.

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"Humans have a strength that cannot be measured. This is John Connor. If you are reading this, you are the resistance."

<<AutoCAD 2015>>

Posted By: xrayrays
Date Posted: 26.Apr.2012 at 14:03
i think helix i need.

-------------
Thanks,



Marcuel Gubaynon

Technical/Draftsman

Philippines

Posted By: philippe JOSEPH
Date Posted: 26.Apr.2012 at 14:37
Hello N° 3
If you are using HELIX in a 2D drawing, beware of not creating a 3D HELIX.
In the properties panel you've got access to 10 modifiable values.
Position X ........
Position Y .......
Position Z 0  ---> must be zero
Constrain your choise between 3
Height 0 ---> must be zero
Turns ---> your choise
Height of turns 0 ---> must be zero
Base radius ---> your choise
Top radius ---> your choise
XXXXX ( I don't know in english ) trigo or time direction
( excuse me for the terms in french to english )
 
Please let us know if it helped and if possible let us see your DWG, I'm interested.

Posted By: John Connor
Date Posted: 26.Apr.2012 at 14:43
You're drawing a 2D spiral which means there is NO height!  Which is why I told you to use a value of "0".

A helix with a different radius for the base and the top will produce a spiral.  If the radii for both is the same then you won't get the desired result.


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"Humans have a strength that cannot be measured. This is John Connor. If you are reading this, you are the resistance."

<<AutoCAD 2015>>

Posted By: John Connor
Date Posted: 26.Apr.2012 at 14:44
This is what you are looking to achieve right?

http://en.wikipedia.org/wiki/File:Archimedean_spiral.svg


-------------
"Humans have a strength that cannot be measured. This is John Connor. If you are reading this, you are the resistance."

<<AutoCAD 2015>>

Posted By: xrayrays
Date Posted: 26.Apr.2012 at 14:51
i only have
center point:
number of rotations:
Growth per rotations:
Points per rotation <30>:

thats the command in my spiral.slp


-------------
Thanks,



Marcuel Gubaynon

Technical/Draftsman

Philippines

Posted By: John Connor
Date Posted: 26.Apr.2012 at 15:21
Guess what?  That is not going to give you what you want.

What is your base radius?
What is your top radius?
How many turns do you want?




-------------
"Humans have a strength that cannot be measured. This is John Connor. If you are reading this, you are the resistance."

<<AutoCAD 2015>>

Posted By: xrayrays
Date Posted: 26.Apr.2012 at 15:37
I Enter this

center point
number of rotations:5 
Growth per rotations: 10 
Points per rotation <30>: 90

its flat spiral.

hmp, how do i fix to not flat.


-------------
Thanks,



Marcuel Gubaynon

Technical/Draftsman

Philippines

Posted By: John Connor
Date Posted: 26.Apr.2012 at 15:40
You have a habit of not answering questions put directly to you.  I did NOT ask what spiral.lsp was requesting for input.

Please answer MY questions.


-------------
"Humans have a strength that cannot be measured. This is John Connor. If you are reading this, you are the resistance."

<<AutoCAD 2015>>


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