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More Internal Structures ...

by Ablapo, published

More Internal Structures ... by Ablapo May 18, 2013
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3447Views 1486Downloads Found in Engineering
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Summary

Here are some regular patterns to be used as infill and internal structure for 3d models using OpenSCAD.

Version 1: Cone tubes
This structure consist of separate tubes with double cones. The tubes are arranged rectangular.

Version 2: Sphere tubes
This structure consist of separate tubes with spheres. The tubes are arranged hexagonal. The calculation is time intensive.

Version 3: Octahedrons
My favorite structure consist of linked octahedrons. The octahedrons are arranged rectangular. The wall size is at minimum.

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3447Views 1486Downloads Found in Engineering
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i tried to import the file into inventor to modify it. i tried to make the infill in my drawing but i can't. do you have a little trick to do this?

The source code is written in OpenSCAD. I never tried inventor. Maybe try a different software or ask in the support forum of inventor.

octahedrons should be use by slicing firmware! it's work wonderful with taulman 618. i made a test on a press bench on a block i do with. i put 750 psi on it. it deform but almost came back to is originally form.

Sure, feel free to implement it in a slicing software! A more general way would be: The slicing software would take another stl-file as infill of the primary 3D-object.

I like this because the infill breaks the horizontal. Most infill patterns used commonly create vertical columns. It has been shown that creating voids like holes in swiss cheese reduces warping since it breaks the layer up.

which is the lightest?

V1: cone tubes = 7.2 g (don't remember the settings, maybe see below)
V2: sphere tubes = 8.0 g (4 perimeters,25% infill)
V3: octahedrons = 5.0 g (no infill needed)

Thanks

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