**System Information**
Operating system: Windows-10-10.0.17763-SP0 64 Bits
Graphics card: GeForce 310M/PCIe/SSE2 NVIDIA Corporation 3.3.0
**Blender Version**
Broken: version: 2.82 (sub 6), branch: master, commit date: 2020-01-10 06:10, hash: `rB95200045f312`
Worked: (optional)
**Short description of error**
When ticking the option to export ACIS, the import will try to create a file with a very long name and crash.
**Exact steps for others to reproduce the error**
1. prepare a .dxf file with different ACIS (solid) objects.
2. menu >File >Import >DXF > "Export ACIS Entities" checked on
3. import go
4. observer in file browser, ACIS entities saved in very long file name.
This bug was original posted as below, but closed and unfixed.
[[ https://developer.blender.org/T51476 | https://developer.blender.org/T51476 ]]
{F8634847}
{F8634846}
This bug was original posted as below, but closed and unfixed/unmerged.
[[ https://developer.blender.org/T51476 | https://developer.blender.org/T51476 ]]
The fix by the post is also buggy, which export at most 4 ACIS entities.
{F8634873}