How viable is the exclusive use of curve modelling to make 3D printable models? And furthermore, why should or shouldn't one use curve modelling as opposed to constructing your printable models from primitive meshes?
As long as you meet the requirements of the materials you what the design to be able to print in and the guidelines of 3d printers in general, the process in which you choose to model doesn't matter. If you are unsure on how to design for 3d print, there are plenty of online tutorials that have great tips.
Curves + 3d printer = less room for stability of model and more room for printer head errors.
Example while printing out a curved Vent part there was much less space on the printers "bed" to anchor down the part properly to avoid disruptions during printing .. this meant my final print had a good side and a poorly printed side .
there are ways to fix this problem and I will be attempting again soon.
Curve modeling is absolutely no problem. You can export the model as a .stl file then so that it is a mesh (you can decide the mesh details) with which every 3D printer can work. You don't see it later if the mesh was very detailed or not as no printer is perfect.
Regards
Christoph
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