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How would you print that? [message #20212] Mon, 08 November 2010 07:38 UTC Go to previous message
avatar Magic  is currently offline Magic
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Registered: August 2008
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Shapeways Crew
Hi all,
I have done a model called Ring'n'Roll, basically two nested rings that can roll one inside the other, and I was wondering how to position the 2 moving parts in the stl file before printing.
Actually, for the initial model the regular Ring'nRoll I turned the internal ring of 90°. My goal was to minimized the area of contact between the two rings, to avoid they get fused (the thickness is 2 mm and the clearance 0.75). I already ordered it in Alumide in this position.
But I am now wondring if, depending on the printing direction, there could not be a deformation that could occur differently on each ring, and prevent them from moving freely.

So for my next model (not ordered yet), the Ring'n'Roll with Holes I decided to keep the 2 rings lying flat on the horizontal surface.

See the automatically generated thumbnails on these models, or this rendering:
The first one is "flat" the second one "turned at 90°".

What is you opinion or experience on this topic?

[Updated on: Tue, 16 November 2010 06:38 UTC]

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