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hexagon shell with fillets (by John Griessen)
Anyone making hexagon shells with fillets? Chamfers?

Step rotate easily makes 60 degrees by asking for a repeat of 6, but how to round corners of 3D hexagon "tube"?

John
puzzling along
Sat Oct 24 2015, 15:40:10
(no subject) (by Jonathan Westhues)
As attached? The line and arc are sketched and then rotated.
Sat Oct 24 2015, 15:56:40, download attachment hex.slvs
hexagon shell with fillets (by John Griessen)
I'm thinking that maybe the loft concept is the way to do this. Create hexagons of different sizes and position them in 3D to make a tapering moldable object, then loft a shell that intersects all the hexagon edges. The hexagons can be round cornered and it all still works. That's not a feature in solvespace, so I may be at a dead end for hexagonal enclosures with draft angle for molding.
Sat Oct 24 2015, 16:00:22
step rotated rounded corners (by John Griessen)
Thanks for that example jonathan. It's close, but I still need a
tapering shape for moldable objects. I got that with lathe, but can't
see how without a loft function.

I wish there was a work around, since creating multiple sketches close to eachother with slight differences is becoming tedious with Freecad.
Sun Oct 25 2015, 17:44:25
Sweeping a shape is the way OpenSCAD and FreeCAD do hexagon shell with fillets (by John Griessen)
I did a loft with FreeCAD from flat drawings that would not stay on the center line when changing their parameterized diameter, so that was tedious and made me think of what to do for a work flow for this kind of part, since I am designing a family of modules that fit together this way.

Sweeping was experimental/broken a year ago with openscad, and I had not thought of it until today, but FreeCAD can do that. So, instead of pencil and paper to arrange enough sketches to loft without blowing up, I'll use solvespace to create a parameterized shape to sweep, then sweep that through a rounded corner hexagon. Not sure if it can be done in one path, or if it will need corner sweeps and extrudes, then assemble, but it will be better than 20 sketches of the swept shape that are not constrained to anything but themselves.
Tue Oct 27 2015, 12:11:49
Sweeping a shape is the way OpenSCAD and FreeCAD do hexagon shell with fillets (by John Griessen)
"but it will be better than 20 sketches of the swept shape "
should have said,
"but it will be better than 20 sketches of scaled shapes to loft"
Wed Oct 28 2015, 10:29:01
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