I am trying to understand if it's possible to 3D print a double-walled cup -- imagine a cup inserted into a slightly larger cup and then the opening between their rims sealed. Obviously there's need to be an opening somewhere to get the filler out, and this is fine, but I am a bit fuzzy on the details -
1. If it'd be possible to keep the overall thickness of the double wall under 3-4 mm? And what material this will require?
(edit) Alright, so I guess this covers the thickness for Strong & Flexible materials. Consider this question closed.
2. What would be the smallest required size of the opening for getting the filler out? I just don't know if the filler is a fine-grained powder or something lumpy or sticky.
If the shape is a simple double walled cylinder, you could go the route of drawing the profile for the walls, then spin/sweep or extrude the profile. A quick example is below, I've cut away part of the cylinder so the construction is more visable.
With the Strong & Flexible materials, the support material is the same powdered material as the finished solid item. The powder is quite fine, but due to the process, it can be quite 'clumpy'. The S&F material design guidelines page says Min Escape Hole: 4mm (1 hole) / 2mm (2 holes) / Big models (multiple holes)
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