Hollow Demi-sphere

by VeryWetPaint, published

Hollow Demi-sphere by VeryWetPaint May 8, 2010

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Hollow Demi-sphere by VeryWetPaint is licensed under the Public Domain license.

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This is dissection of a sphere into two identical pieces, which includes a hollow cavity when assembled. This is derived from the same basic OpenSCAD script as my previous Hemi-demi-sphere submission.


Build two copies of Hollowdemisphere.stl.

Watch your first model carefully; it starts with a brief 45-degree overhang from a thin edge. If your printer doesn't use support material then the first 10 layers may need a little tuning.

On Hollowdemisphere.stl the upper half of the model also exhibits an overhang. If this gives you too much trouble, try building the cylinderdemisphere.stl version instead; it eliminates the interior overhang by using a smaller cylindrical cavity at the expense of using more material.

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bre is awsome cuz he created the first makerbot ever and then never made videos (please make youtube videos i loved that) people who havent heard of makerbots think you fell off the face of the earth =-X =-O ;) O:-)
amp;gt;:o :) ;) :'( 8-) :( : :-D =-O :-$ =-X :-[ :-P :-E DONT_KNOW* :-D :-D :-D :-D :-D :-D :-D =-O =-O

Just filled the print with catnip. Our cats now think VeryWetPaint is the coolest person evah.

was this printed with a maker bot?!

No, the pictured sample was built on a Solido SD300 Pro. It was my goal for it to be Makerbot buildable, although I made a few minor mistakes. I put the Z-axis in the middle of the model, which apparently requires some extra fiddling in Skeinforge.

This printed delightfully.
Took a few tries before I got the bottom layer to stick.
Incidentally, spraying expo marker eraser fluid on blue painter's tape makes it even better for printing on. Chemistry is fun.