IceSL vs Voxelizer

IceSL is a free set of 3D modeling and slicing tools for customizable shape fabrication. IceSL-forge combines modeling and slicing through a Lua language that describes Boolean combinations of triangle meshes, voxels, implicit surfaces and shaders. IceSL-slicer turns models or geometry scripts into G-code, DLP printer images and laser-cutter paths. SliceCrafter provides browser-based slicing, while WebPrinter previews G-code by emulating a 3D printer. Available slicing methods include cubic and tetrahedral infills, bridge supports, adaptive layer thickness, progressive infills, efficient offsetting, protective shields and self-supporting cavities. Polyfoam and Phasor infillers expose local density, orientation, direction and randomness controls. Layer thickness, infill density and printing speed can vary by layer. Documentation covers plugins, printer profiles and pyicesl Python bindings. IceSL requires a GPU with full OpenGL 4.3 support. Its free license is limited to internal research and academic use; commercial and production use are forbidden.

Voxelizer is Zmorph’s software for preparing jobs for 3D printing, CNC milling, and laser engraving. It turns 3D models into layers, generates G-code, and includes editing tools, 3D filters, support structures, and variable layer height. The Fab version adds CNC workflows with STEP operations, tool changes inside one G-code file, and toolpath visualization. Supported file types listed for Fab include STL, OBJ, STEP, DXF, PNG, and BMP; G-code is the listed output format. Voxelizer can map PNG and BMP images onto 3D objects for multi-material printing. Image mapping and color blending require the DUAL PRO toolhead, with the described blending supporting PLA and up to eight shades. The software supports Zmorph toolheads and workflows optimized for Zmorph printers. It is free, with no paid tiers stated. Windows and macOS are supported; Linux is described as experimental. Minimum requirements include 4 GB RAM, an OpenGL 3.3-compatible GPU, internet access, and 1280 × 720 resolution.