Commonly reached for

Popular 3D printing resources

A hand-picked front shelf for tools makers tend to look for first: slicers, calibration references, model libraries, CAD apps, and a few utilities that solve oddly specific jobs.

Built around printer.tools

These are tools from this little ecosystem, not just outbound links.

QRcode2stl

Built here

Create QR codes, Spotify codes, and Text tags for 3D printing

Tools Free Web

Businesscard2STL

Built here

Design business cards with QR codes and logos for 3D printing

Tools Free Web

Coaster2STL

Built here

Turn your artwork, patterns, and lettering into printable coasters

Tools Free Web

Ultimaker Cura

Most popular 3D printing slicer by Ultimaker

Slicers Free WindowsmacOS

PrusaSlicer

Advanced 3D printing slicer by Prusa Research

Slicers Free WindowsmacOS

OrcaSlicer

Advanced slicer for power users with rapid development

Slicers Free WindowsmacOS

Printables

3D model platform by 3D printing experts Prusa Research

Model Libraries Free Web

Thingiverse

Probably the largest free 3D model repository. Owned by UltiMaker.

Model Libraries Free Web

FreeCAD

Open-source parametric CAD

CAD Software Free WindowsmacOS

Teaching Tech 3D Printer Calibration

Complete calibration guide series

Online Guides Free WebYouTube

Gridfinity Generator

Modular organization system

Tools Free Web

QRcode2stl

Built here

Create QR codes, Spotify codes, and Text tags for 3D printing

Tools Free Web

OctoPrint

Remote printer control and monitoring web interface

Other Free Raspberry PiLinux

Bambu Studio

3D slicer by Bambu Lab

Slicers Free WindowsmacOS

MakerWorld

Official 3D model library by Bambu Lab

Model Libraries Free Web