3D Printing
3D printing is the process of building a physical object layer by layer from a digital model — fully accessible at home today without special training. This category is for beginners: the difference between FDM (thermoplastics) and photopolymer (LCD/MSLA) printing, file formats (STL, 3MF, STEP), picking a first printer under $300 or under $600, understanding which jobs actually fit home hardware (miniatures, prototypes, functional parts, custom brackets, replacements for lost parts) and which need industrial equipment (metal printing, parts over 500 mm).
Typical questions at this stage: what to buy beyond the printer (adhesion sheet, knife, tweezers, scraper, isopropyl alcohol), whether a dedicated computer is needed for the slicer, how to prepare a model in Orca or Bambu Studio without ending up with spaghetti on the bed. If you are still shopping, start with the FDM vs photopolymer comparison. If you just bought your first printer, jump straight to the first-layer guide. After six months of prints, look at cost-per-model calculations and routine maintenance.
Related reads: materials for 3D printing, defect troubleshooting and the catalogue on the Printers page.