Multiple tube layers on an irregularly shaped core.

[mryan-2]

I've been following some of the section sweep experts on this forum and I've been able to reproduce the following so far.

This is a two layer winding using a curve generated by cylindrical equations as the base for the sweep profile.  The equations are:

r=evalgraph("radius",t*16)

theta=360*evalgraph("turns",t*16)

z=evalgraph("z", t*16)

Graphs:

All of the above is taken directly from this post One method to make wound springs I only reproduced what had been done and put the coil reversal condition in it.

How do I take the next step and go from a winding with a round core to one with an irregular shape?  I'd like to wrap two layers of a coil around a pill shaped mandrel.

Thanks,

Mike Ryan

Creo 2.0

[TomD.inPDX]

Just change your radius graph.

[mryan-2]

Thank you for responding but I'm stuck as to what the graph should look like.  Can you offer any more information?

[TomD.inPDX]

The graph will look a lot like your mandrel profile.  Remember this is a radial setting.

The graph horizontal represents duration (0 to 1 as trajpar is also 0 to 1) and the vertical represents your actual radius.

So if the graph looks like your mandrel with an offset accounting for the wire thickness.

p.s.... the example uses 16 as a horizontal measure.  Note that trajpar is also multiplied by 16 in the sweep relations.

Some of this just takes getting use to.

If you use trajpar inside a sin or cos function, then you have to remember to multiply trajpar by 360 (degrees) so you get the full sweep of the wave.

[Mano_S]

hi....

    Pls tell me how to add third layer for winding