Modeling Splines on a shaft

[m_walczak]

Hello,

Very much a newbie here, and what makes this even worse is that I am electron push trying to work in the mechanical world.  What I need for lack of a better term is to model splines around a shaft. If someone would give me some pointers to get me going that would be great.  Thanks in advance.

Mike

[gautham_kattethota]

Hi Mike,

There is no direct way in Fusion currently to create a spline curve and wrap it around a cylindrical surface.  But you could use a workaround to get that - create a Coil primitive feature around the shaft in the Model workspace and then use Project geometry in the Sketch workspace to project an edge from the coil feature on to the shaft.  

Here is a link to a related item that might help you:

http://forums.autodesk.com/t5/design-and-documentation/spiral-cone-model-issues/td-p/5599030

Hope this helps.

Gautham

[Anonymous · Accepted solution]

Hi Mike,

I would probably make shaft splines, which I'm imagining are linear groves along the shaft, by choosing Make Sketch, sketching one spline "tooth" and doing a circular pattern to repeat the rest quickly, so that a closed profile is created.  Finish sketch and extrude the profile. 

If that's not what you were thinking or need more help let me know.

Jesse

[m_walczak · Accepted solution]

Thanks, that is what I ended up doing. But since your had that answer,
what I next need to do and have no luck at is, extending one spline or
another way of looking at it is not removing one spline tooth. See
attached file. [image: Inline image 1]

[m_walczak]

Thanks, that is what I ended up doing. But since your had that answer,
what I next need to do and have no luck at is, extending one spline or
another way of looking at it is not removing one spline tooth. See
attached file.

[Anonymous]

Hi, you should just be able to extend the face of spline want to extend, by extrusion, press/pull, etc., or if need to, first creating sketch on the end face of spline want to extend. 

Jesse