Posts: 5
Threads: 3
Joined: Nov 2020
Reputation:
0
Im using the printer to create accurate engineering models. Its well known that models are 0.1 mm bigger (ish) per layer due to light scatter exposing the outer edges making outer edges larger and holes smaller. So to compensate people have written tools to erode the image. Nothing works on EM 2 pro!.. even tried Z-suit slicer that comes with this feature, but mot supported on the pro 2. Anybody else having the same issues or have a work around?.
Posts: 558
Threads: 15
Joined: Mar 2020
Reputation:
22
These are hobbyist class printers built to meet a specific (low) price point--given that they work pretty good I calculated the percent of error and rescale my models as required, including modeling horizontal through holes as ellipses dimension-ed as needed and drilled/reamed to final size if necessary...
Posts: 558
Threads: 15
Joined: Mar 2020
Reputation:
22
Most materials shrink when they cool¹--however the final cure of this stuff is not a cooling process but rather further polymerization.
-------------------------------------------------
¹ - There are low-melting point fusible alloys containing bismuth. iridium and the like that expand when they solidify--or shrink at frst then grow sometime after.