Q: Yet another RepRap slicer?

A: Yes.

Slic3r

What's it?

Slic3r is (er, will be) an STL-to-GCODE translator for RepRap 3D printers, like Enrique's Skeinforge or RevK's E3D.

Why another one? Why Perl?

The purpose is to build something more maintainable and flexible than both Skeinforge and E3D. The code makes extensive use of object-oriented programming to achieve some level of abstraction instead of working with raw geometry and low-level data structures. This should help to maintain code, fix bugs and implement new and better algorithms in the future. I also aim at implementing better support for hollow objects, as Skeinforge isn't smart enough to generate internal support structures for horizontal facets.

Also, http://xkcd.com/224/

What's its current status?

Slic3r current features are:

• read binary and ASCII STL files;
• generate multiple perimeters (skins);
• generate rectilinear fill (100% solid for external surfaces or with customizable less density for inner surfaces);
• retraction;
• skirt (with rounded corners);
• use relative or absolute extrusion commands;
• center print around bed center point;
• multiple solid layers near horizontal external surfaces;
• ability to scale input object;
• use different speed for bottom layer.

Roadmap includes the following goals:

• output some statistics;
• allow the user to customize initial and final GCODE commands;
• support material for internal perimeters;
• ability to infill in the direction of bridges;
• input object transform (rotate, multiply);
• cool;
• nice packaging for cross-platform deployment.

Is it usable already?

Yes. I need to write a script to install dependencies.

Can I help?

Sure! Send patches and/or drop me a line at aar@cpan.org. You can also find me in #RepRap on FreeNode with the nickname Sound.

What's Slic3r license?

Slic3r is dual-licensed under the Perl Artistic License and the AGPLv3. The author is Alessandro Ranellucci (that's me).