4 ms·
> Parts also shrink up to 15 percent during the debinding and sintering process – but again, that's all automatically managed by the system. Given this change
by brotchie 9y ago
> Parts also shrink up to 15 percent during the debinding and sintering process – but again, that's all automatically managed by the system.
Given this change in volume (which I assume would be highly nonlinear depending on design density and geometry?) I wonder what repeatability is like.
Perhaps for the manufacturing (non prototyping) printer they have a closed loop feedback mechanism to build a few outputs and feed any dimensions out of tolerance back to the input stage.
- jandrese 9y agoIt might also be possible to model the shrinkage in software and compensate for it automatically, assuming you know what materials you are going to use. Could be a minor surprise when you check that you have a 200x200mm work area, design a 100x180mm part, and then get told that it won't fit on the build area.
- cr0sh 9y agoIt's not just materials, but the geometry of the part that plays a role in the shrinkage. Though I wonder if some form of finite element analysis could overcome this (that software won't be cheap).