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 RyanCreo 2.0

1-Visitor

Question

Multiple tube layers on an irregularly shaped core.

Forum|Forum|9 years ago
August 31, 2016
2 replies
5505 views

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

Sweep Surface.JPG

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)

Curve from equation.JPG

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

Data Exchange

T

TomD.inPDX

17-Peridot

Just change your radius graph.

M

mryan-2

Author

1-Visitor

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

T

TomD.inPDX

17-Peridot

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.

M

Mano_S

1-Visitor

hi....

Pls tell me how to add third layer for winding

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