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

Related Articles


Spline Drawing

Spline Drawing

Spline Drawing

Can anybody help? Im trying to replicate a spline in Catia. Ideally Im just after some software (free) to take the data and export to dxf. The info I have is;

number of teeth: 28
pitch: 24/48
pressure angle: 45
base dia: 20.95393 ref
pitch dia: 29.63334 ref
major dia: 31.47 max
form dia: 30.76
minor diam: 29.1338/29.0068

circular space width
max actual: 2.219
min effective: 2.150

gauge pin dia: 2.032
between pins dia: 26.939

Can anybody help?

RE: Spline Drawing

I can help you by providing a DXF but I'm not prepared to provide my time for-free.

RE: Spline Drawing

Actually I was looking for software recommendations not free time.

RE: Spline Drawing


CATIA already has the capability to model an accurate 2D parametric involute spline profile using the sketch workbench. There are many tutorial videos available online that provide step-by-step instructions on how to do it. Once you have the 2D sketch you can export a .dxf file from CATIA.

If your time is valuable and you only need the task performed this one time, then there are lots of people who will provide the .dxf file for a reasonable price. If you are going to use the .dxf file for manufacturing purposes I would highly recommend this approach. Paying an experienced person to do this work will ensure it is done correctly. Your machining vendor won't check the accuracy of the CAD model provided, and it can get expensive scrapping parts manufactured based on a CAD model that was flawed.

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!


White Paper: Industrial Control Basics: Contactors
A contactor is an electrical device used for switching an electrical circuit on or off. Considered to be a special type of relay, contactors are used in applications with higher current carrying capacity, while relays are used for lower current applications. Download Now
Research Report: State of IoT Adoption in Product Development 2019
This research report, based on a survey of 234 product development professionals, examines the current state of Internet of Things (IoT) adoption by product design teams, its perceived importance, and what features and capabilities teams consider important when making decision about adding IoT functionality to their products. Download Now
Research Report: Augmented Reality for Maintenance, Repair and Overhaul (MRO)
The term Industry 4.0 denotes a cluster of technologies that’s poised to fundamentally reshape manufacturing and bring about a new industrial revolution. These include 3D printing (AM), the Industrial Internet of Things (IIoT), artificial intelligence (AI) and mixed reality technologies, more commonly known as virtual reality (VR) and augmented reality (AR). 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