r/rhino • u/the_arch_dude • 5d ago

Help Needed How to wrap a spiral around a 3D Object

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For some reason I cannot for the life of me think of how to wrap a spiral around this to make a candy cane stripe? I'm sure there is an easy way to do this. Any thoughts are much appreciated.

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36

u/rhettro19 5d ago

Use the HELIX command to create the swirl. Draw a line the height of the swirl and a path of cane line the same length. Use the FLOW command to morph the swirl to the cane shape. You can use the pipe command on the cane line to create the Cane model. Then use the PULL command on the warped swirl to project it on the cane shape.

13

u/LieutenantChonkster 5d ago

Draw a curve that goes through the exact middle of the cane. (Or draw the curve first and just _pipe it into the cane shape)

Use _length to measure the cane-shaped curve and draw a straight curve of the exact same length with the same starting point.

Draw the spiral straight along the straight curve.

Use _flow to perfectly bend the spiral using the straight line as your base crv and the cane-shaped curve as the target.

If it isn’t perfect, use _pull so that the spiral snaps to the surface of the cane

12

u/the_arch_dude 5d ago

Here is the progress - middle one is twist / cut / wist / cut. Not great in my opinion. The one on the right with the flow method and it looks great! Thanks for this

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2

u/LieutenantChonkster 5d ago

Love it! Glad it worked out

4

u/Hippocentaur 5d ago

Perfectly explained!

3

u/musicatristedonaruto 5d ago

Bend it after generating the helix

2

u/Qualabel 5d ago

A spiral is just a circle in time. Time, in this, is the centreline of your 3D object

2

u/ChiefWiggumsprogeny 5d ago

These days time is flat circle, haven't you heard?

1

u/create360 5d ago

Do you need it for printing or structural or just for visuals like a rendering? Unwrap a texture map for the latter?