Welcome to The Layer Guide. This is where we work through the things a product page will never tell you: which temperature actually stops PLA stringing, whether a 3D pen is safe to hand a seven-year-old, and what to do when the nozzle clogs mid-project.
Browse by topic
Buyer's Guides
How to choose a 3D pen or printer: the specifications that matter, and the ones you can ignore.
1 article →
Materials Science
PLA, ABS, PETG, PCL and resin: how each material behaves, what it needs, and which pens and printers take it.
1 article →
Safety
Burns, fumes and supervision: what the temperature figures actually mean, and how to set up a 3D pen or printer safely, especially for children.
1 article →
Latest
Safety
Is a 3D Pen Safe for Kids?
Whether a 3D pen is safe for a child depends on how hot it runs: the temperatures makers publish, an…
3D Pen Guides
How to Choose a 3D Pen: the Specs That Actually Matter
Every listing claims the same features. Here are the specs ranked by how much they change your drawing, five pens…
Materials Science
PLA vs ABS 3D pen: the honest comparison
PLA or ABS in a 3D pen? Published pen temperatures, strength and heat data and a study of 3D pen…
3D Pen Guides
How to Choose a 3D Pen: the Specs That Actually Matter
Every listing claims the same features. Here are the specs ranked by how much they change your drawing, five pens…
Materials Science
PLA vs ABS 3D pen: the honest comparison
PLA or ABS in a 3D pen? Published pen temperatures, strength and heat data and a study of 3D pen…