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ptc-51365851-Visitor
1-Visitor
June 8, 2013
Question

Create hex/pentagon shaped dimples on a circular surface.

  • June 8, 2013
  • 1 reply
  • 10626 views

Okay, I know we just had a huge long discussion on round dimples on a circular surface while keeping the round dimple profile. This truly is for a purpose, I'm not just trying to waste time. It is the same concept but instead of a circular dimple I'm trying to create a hex or pentagon shaped dimple. If you are familiar with golfing, look at a callaway golf ball dimple pattern, it is a pentagon. It is that same concept but as opposed to a spherical shape I'm trying to put that on a circular shape just like my last discussion.

Hex.jpg

Example of the callaway golf ball dimple and an image I found that might be helpful. I've been playing with this for a while and can't figure out how to do it. The bottom of the dimple doesn't have to be perfectly spherical, in fact that's impossible. I do want it to be or appear as smooth or spherical as possible however.

callaway_hex_black_tour_ball.jpghex-chrome-dimples_30762org.jpg

Thank you!

1 reply

T
TomD.inPDX17-Peridot
17-Peridot
June 8, 2013

Same as the circular dimples (use a VSS) but use a conic instead of a arc. If you feel really experimental (or some kind of mental...) add a trajpar to the sharpness value. Just remember that the VSS origin curve or chain curve must be tangent throughout.

As for making the hex correct on the cylinder, take a look at the wrap feature. That will keep you busy too

T
TomD.inPDX17-Peridot
17-Peridot
June 8, 2013

Something like this?

hexdimples.PNG

T
TomD.inPDX17-Peridot
17-Peridot
June 8, 2013

"How to give your CPU a heart attack!"

there's got to be a texture opportunity with that one.

Doing this one made it clear that mapping the hex with the wrap feature is required. This makes it possible to use the Fill Pattern and have a common "frame" width around each instance on all 6 sides.

VSS; simple section with arc and spline using 3 guide strings. No rounds!

honeycomb.png

honeycomb2.png

Can't you just see the honey drip'n from these

Okay, the tech...

honeycomb3.png

And yes, you can use the trick from the dimple discussion to merge the fill pattern all-around matching up perfectly. In this case, I sized the cylinder to the pattern: 15mm hex across the flats; patterned at 15.1; cylinder height 151 (10 and 9+2x1/2); and 12 around (24-offset).

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