This tool receives one STL file and split it to several files - one shell a file.
The code originated in Slic3r and the author of the splitting code is Alessandro Ranellucci. It's licensed under the GNU Affero General Public License, version 3.
You'll need the ADMesh libraray, g++ and Premake 4. On Linux, you would use:
premake4 gmake
make
To install stlsplit, put the compiled binary and the shared library into your $PATH:
sudo cp build/stlsplit /usr/local/bin
sudo cp build/libstlsplit.so.1 /usr/local/lib # or lib64
If you intend to build something with stlsplit as a library, you'll also need the header file and .so symlink:
sudo cp stlsplit.h /usr/local/include
sudo ln -s libstlsplit.so.1 /usr/local/lib/libstlsplit.so # or lib64
sudo ldconfig
stlsplit file.stl
As a result, you'll get file.stl.part1.stl, file.stl.part2.stl and so on.