This is a post from the old forum, stumbled onto it again on FB, thought I would transplant to here :)
1: Old ring (see naked edges causing BlockInstanceDiamond to fall out.)
2: Start by taking Primitive BOX and Extrude to Rectangle
3: Use BEND command
4: Extractisocurve, Pipe, Booleandifference
5: Extractisocurve (change direction) pipe, booleandifference
6: Examine for naked edges or bad geometry
7: Soften and filletedge 0.125 then HIDE
8: Old geometry WireCut
9: Cap ends, examine for bad geometry
10: UNHIDE head section into file
11: BooleanUnion
12: Examine for Naked Edges
13: Explode old geometry, extract BlockInstanceDiamonds
14: Align BlockInstanceDiamonds to new Head
15: CageEdit to secure BlockInstanceDiamonds
16: Examine for naked edges and bad geometry
17: Apply texture and materials
18: Finally Render!
Fantastic. I imagine there's a few CAD users who've never seen the real thing!
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