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Brittle prints.
Why are the prints so brittle after washing, drying and curing?
I use PRUSA Resin tough with 15seconds exposure time.
Michael
Posted : 22/05/2019 3:10 pm
RE: Brittle prints.
That is overexposed for this printer/resin combo. Most of the tough prusa resins are 6-7 seconds with a starting layer of 30 seconds. The manual 'highly recommends' sticking with the default presets.
Posted : 22/05/2019 9:29 pm
RE: Brittle prints.
Are you still having trouble with the resin?
Differential expansion from very thick/solid walls can cause problems, so hollowing out models with meshmixer and putting in drain holes is important. Washing for too long can make the resin brittle too, supposedly. I have read in other forums some people get poor results from washing a long time (for hours in stead of minutes).
Posted : 03/06/2019 2:21 pm