@Steven_Hines wrote:
I've noticed that tough v3 seems to have difficulty maintaining dimensional accuracy of hollow spaces (e.g., slots for nuts, holes for screws, etc). The material appears to "swell" into the space in a way the standard resin does not. In other respects it is fairly accurate.
For example, I have a model with a slot for an M2.5 hex nut. This slot printed in tough v3 is large enough to fit an M3 nut printed in grey standard resin. There also appears to be an influence from model orientation: on a model with slots in various angles, some are wider, thinner, etc, than others.
Since I use OpenScad I'm able to selectively size these spaces depending on the intended material. I am curious if Formlabs is aware of the issue. It certainly would be nice if Preform were able to make these adjustments.
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