×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

How to draw a 3D helicoid ?

How to draw a 3D helicoid ?

How to draw a 3D helicoid ?

(OP)
Hello,

Does someone have a programming method (LISP or VBA) or a manual method to draw a 3D helicoid on which we may generate a profile ?
Thanks for help.

RE: How to draw a 3D helicoid ?

What is the formula of the helicoid?
The only profile youl could strude on a 3d Polyline is a circle.
You can draw any curve  on 3d  


Pardal

RE: How to draw a 3D helicoid ?

You need to create a 3d polyline spiral and then extrude your shape along this path.
On Cadalog at www.cadalog.com you should be able to find 3DSPIRAL.LSP
or on Autodesk User Group International at www.augi.com in the exchange section you should be able to find HELIX.LSP
and these should help you.

RE: How to draw a 3D helicoid ?

Depends on what profile you are wanting to use on your helical, and if you want a solid or a surface.  So far, I have only found 1 routine that successfully extrudes a profile other than a circle along a helical path, with the end-product being a solid.  It is written by Fuccaro at another Cad forum:
http://www.cadtutorforum.net/forum/viewtopic.php?t=74
You have to follow the directions carefully as to how to use it.
The problem with all other spiral routines is that they twist your profile as it is extruded along the path.
Here are some examples of Fucarro's helical exrusions.
Off topic-he has some interesting routines he wrote for a telephone cord and a shell that is worth checking out.

Flores

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources