cgw
March 24, 2022, 7:06pm
2
Hi Samah. Sorry, I do not have a quick answer to this question, but when a singular matrix is detected, it’s a sign that something has gone wrong in the simulation. Searching the forum for ‘singular’ comes up with a few threads on this topic:
Somehow, there is a singularity when the bed packs. I was able to run to completion by turning off the preconditionner and setting norm_s = 1 or by turning off the preconditionner and leaving norm_s undefined.
Thank you for your patience. I don’t have a solution yet, but this is probably due to a bad mesh. Others may provide additional guidance.
A few points:
The STL file looks better, but look at the output:
STL file(s) successfully read.
Total number of facets read =134588
Number of valid facets =104889
Number of ignored facets = 29699
This is an indication small triangles are still present. You may get better results by reducing the facet angle tolerance and decreasing the intersec…
Please let us know if this answers the question.
– Charles