Simplify3D User Forum

I was happily printing and thought i would do a mesh reduction at the same time, to see what it does.

Did a reduction with the standard settings, so far ok. But then i hit print.. and BAM.. whole s3d crashed, stopping print.

I tried with both 3.01 and 3.02, the same thing. No error message.


I often test other settings and stuff while printing, nothing has happend so far.

Known bug?

This is happening to me also with version 3.1.0
Is there a fix for this or, at least, an explanation?

I hadn't even noticed that option before! It also crashes for me on OSX. I'm sending the info to their support. Report says
Exception Type: EXC_BAD_ACCESS (SIGSEGV)
Exception Codes: EXC_I386_GPFLT

Thread 20 Crashed:: Thread (pooled)
0 libsystem_malloc.dylib 0x00007fff8ddfa3dd small_free_list_remove_ptr + 258
1 libsystem_malloc.dylib 0x00007fff8ddf8a7c szone_free_definite_size + 1790
2 com.Simplify3D.S3D-Software 0x000000010016a037 0x100000000 + 1482807
3 com.Simplify3D.S3D-Software 0x0000000100170f00 0x100000000 + 1511168
4 com.Simplify3D.S3D-Software 0x0000000100170f57 0x100000000 + 1511255
5 com.Simplify3D.S3D-Software 0x00000001001710c9 QtConcurrent::IterateKernel<QList<PillarInfo>::iterator, void>::forThreadFunction() + 233
6 QtConcurrent 0x000000010173217c QtConcurrent::ThreadEngineBase::run() + 92
7 QtCore 0x0000000101190788 0x101161000 + 194440
8 QtCore 0x00000001011943f2 0x101161000 + 209906
9 libsystem_pthread.dylib 0x00007fff8ec2399d _pthread_body + 131
10 libsystem_pthread.dylib 0x00007fff8ec2391a _pthread_start + 168
11 libsystem_pthread.dylib 0x00007fff8ec21351 thread_start + 13

Seems like something's calling something it shouldn't, but other than that, I don't know much. You can export the reduced STL from File -> Export Model and then remove the original one, then import the saved (reduced) model and then it works fine. Seems like maybe something in memory is looking for information that was removed in the mesh reduction?

+1 to fixing this!! Having the same issue in 3.1! Windows 10 64 bit

I am also seeing this error. Windows 10 x64.

Unhandled exception at 0x00007FF804AFC180 (ntdll.dll) in Simplify3D.exe: 0xC0000005: Access violation reading location 0xFFFFFFFFFFFFFFFF.