Best Free STL Editor for 3D Printing (2026)
A complete comparison of the best free STL editors for 3D printing. Covers desktop software, online editors, AI tools, and mobile apps with recommendations by task type.
Tutorials
3D Print Finishing Tutorials: Painting, Sanding and More
How to Convert 3MF to STL (5 Free Methods)
Need to convert a 3MF file to STL? This guide covers 5 free methods: online converters, Bambu Studio, Cura, Blender, and PrusaSlicer. Plus what you lose in the conversion and when you don't need to convert at all.
Electroplating 3D Prints: How to Plate PLA with Real Metal (Beginner Guide)
Electroplating deposits real metal onto your 3D prints, giving them weight, conductivity, and a finish that looks nothing like plastic. This guide covers the full process from sanding to polishing, with costs, safety tips, and troubleshooting.
STL to G-code: How to Convert Files for 3D Printing
Your 3D printer doesn't read STL files. It reads G-code. This guide shows you how to convert STL to G-code using free slicer software, online tools, and mobile apps, plus the settings and mistakes that matter.
Painting 3D Prints: A Complete Guide for Beginners
Learn how to paint 3D prints from start to finish. Covers surface prep, primer, acrylic and spray paint techniques for PLA, PETG, and resin.