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I did an trial with a cut knurl and a cosmetic knurl and then zoomed out a bit. Hard to tell the difference. The cut knurl was over 4 meg and really slow. How close are you going to be zoomed on this feature in comparison to the rest of the part or assembly?
Thank you very much for your effort, Dale. It is sincerely appreciated.
Hmmm. That mathod requires more setup than I have time for. Basically, if you set up a swept surface for one of the flanks of one of the diamonds, mirror that twice, trim and knit, you'll have one diamond. Pattern that diamond body as required and knit those to get a knurled surface. Cut with that surface and you should theoretically get knurl that rebuilds faster than the solid sweept cuts.
It might rebuild faster if you approximate each diamond with a loft to a point, but I'm not sure.
Ok, I tried it, and it's sort of fussy. Here's an example (working in 05 today...). I have an idea for another method. I'll post it if it works.
KNURL 07-07-06 10:33:39 AM
Features 14, Solids 1, Surfaces 0
Total rebuild time in seconds: 45.94
Time % Time(s) Feature Order
77.55 35.63 Combine1
17.65 8.11 CirPattern3
3.91 1.80 LPattern4
0.61 0.28 Mirror2
0.24 0.11 Cut-Sweep1
0.03 0.02 Sketch1
0.00 0.00 F
0.00 0.00 Sketch2
0.00 0.00 Helix/Spiral1
0.00 0.00 Plane1
0.00 0.00 Sketch3
I don't know what your dome shape is but the knurl on a cylinder is fairly straightforward. Essentially a knurl is a series of intersecting helical cuts. So, sweep a cut a long a helix, then another along an apoosite helix. Make a circular pattern of these two helices to complete teh knurl.
This will take a very long time to rebuild. To save some time, try making just one diamond of knurl, and pattern that with a geometry pattern. I haven't actually done this myself, but it should work.
I need to learn to model diamong shaped knurl on curved surfaces, both on a shallow dome shape, and also on a round cylinder. If anyone knows of any tutorials be they Video or PPS, I would certainly appreciate the directional lead.