External Links

Qidi:
Ruian Qidi Technology Co., Ltd – http://www.qd3dprinter.com/

For Beginners:
8 Things You Need to Know – https://all3dp.com/3d-slicer-settings-beginners-8-things-need-know/
What is 3D printing? The definitive guide – https://www.3dhubs.com/guides/3d-printing/

Assorted References:
3d Printing Guides – https://support.3dverkstan.se/category/31-guides
The Makers Muse – https://www.youtube.com/channel/UCxQbYGpbdrh-b2ND-AfIybg

3d Printing Materials:
3d Printing Materials Guide – https://www.simplify3d.com/support/materials-guide/

Methods and Techniques:
Lithopanes – http://3dp.rocks/lithophane/?fbclid=IwAR2gbpbCstbbLkSVWc8Zrti3KLgfoIqnvMY4O1AZxpEqWQ9WJhrxa418K9E

Printer Setup, Calibration, and Troubleshooting:
3D Printing Troubleshooting – 41 Common Problems in 2019 – https://all3dp.com/1/common-3d-printing-problems-troubleshooting-3d-printer-issues/
A visual Ultimaker troubleshooting guide – https://support.3dverkstan.se/article/23-a-visual-ultimaker-troubleshooting-guide
A Guide to Understanding the Tolerances of Your 3D Printer – https://www.matterhackers.com/articles/a-guide-to-understanding-the-tolerances-of-your-3d-printer
Dimensional Accuracy – 7 Tips & Tricks – https://all3dp.com/2/dimensional-accuracy-3d-printing-tips-tricks/
Getting Better Prints – https://support.3dverkstan.se/article/30-getting-better-prints
How to Test and Improve Your 3D Printer’s Tolerances – https://all3dp.com/2/3d-printer-tolerance-test-and-improve-your-3d-printer-s-tolerances/
Print Quality Troubleshooting Guide – https://www.simplify3d.com/support/print-quality-troubleshooting/

Free Online Tools:
Netfabb STL Repair Tool (requires free Autodesk registration) – https://service.netfabb.com/login.php
TinkerCAD (requires free Autodesk registration) – https://www.tinkercad.com/

Free Downloadable Tools:
Blender 3D Creation Suite – https://www.blender.org/
Cura Slicer – https://ultimaker.com/en/products/ultimaker-cura-software
Freecad 3D Parametric Modeller – https://www.freecadweb.org/
Fusion 360 3D CAD CAM CAE (requires free Autodesk registration) – https://www.autodesk.com/campaigns/fusion-360-for-hobbyists
QidiPrint – http://www.qd3dprinter.com/software/
Slic3r Slicer – https://slic3r.org/