you are running with a ridiculously small tolerance of 5.0000001E-11.
numerically a lot of the geometry computation is working in single precision so that with a coordinate value of0 .5 any numerical rounding error (round about 7 digit accuracy for single precision) will mean that the coordinates for computed points like intersections etc will be outside tolerance to any other point and nothing will join together within your 5E-11 limit.
do not set your initial db model size or global tolerance to such a numerically small value.
You can set the global tolerance manually under preferences / global .
you are running with a ridiculously small tolerance of 5.0000001E-11.
numerically a lot of the geometry computation is working in single precision so that with a coordinate value of0 .5 any numerical rounding error (round about 7 digit accuracy for single precision) will mean that the coordinates for computed points like intersections etc will be outside tolerance to any other point and nothing will join together within your 5E-11 limit.
do not set your initial db model size or global tolerance to such a numerically small value.
You can set the global tolerance manually under preferences / global .
