Contact US

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!

*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

Conical head

Conical head

Conical head

I need to model a 4m diameter 60° conical head with a 2in nozzle on the vertex. How can I do it in compress? Please help. Thanks!

RE: Conical head


This is a pretty crazy cone. I would suggest not taking this route and to use a head with a nozzle coming out of it.

Also, one thing to note is that since your angle is greater than 30 degrees, you would fall under UW-12 type 8 and the design falls outside the normal instruction of ASME Section VIII.

Anyway, to answer your question. In the transition menu, set the large end diameter to 4 meters, the small end diameter to 2.375"
To calculate the length, you take the ((Major OD-Minor OD)/2)/(tan(angle)). This would be ((157.5" - 2.375")/2)/tan (60) which gets you about 45". You can check your work in the details on the right tab at the bottom.

Hope this helps.

RE: Conical head

Thanks for your answer Afox!

I will consider using another kind of head.

In any case, does Compress provide a tool for modelling conical heads? Because a transition with small end diameter = 0 is not an option.

RE: Conical head

I don't think Compress has the ability to model a cone that ends at a point. You could make a cone that ends at whatever Od, and then put a flat plate at the end of it.

Also to clarify my previous post, I would suggest an elliptical head with a nozzle coming out of the center.

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! Already a Member? Login


Low-Volume Rapid Injection Molding With 3D Printed Molds
Learn methods and guidelines for using stereolithography (SLA) 3D printed molds in the injection molding process to lower costs and lead time. Discover how this hybrid manufacturing process enables on-demand mold fabrication to quickly produce small batches of thermoplastic parts. Download Now
Design for Additive Manufacturing (DfAM)
Examine how the principles of DfAM upend many of the long-standing rules around manufacturability - allowing engineers and designers to place a part’s function at the center of their design considerations. Download Now
Taking Control of Engineering Documents
This ebook covers tips for creating and managing workflows, security best practices and protection of intellectual property, Cloud vs. on-premise software solutions, CAD file management, compliance, and more. Download Now

Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close