Layer Height Guide for 3D Printing

Picking the right layer height makes or breaks your prints. Here is a quick guide to choosing the best layer height for every situation.

What Layer Height Does

Layer height controls how thick each printed layer is. Thinner layers (0.1mm) give smoother surfaces but take longer. Thicker layers (0.3mm) print faster but show visible lines.

Quick Reference

• 0.1mm — Miniatures, detailed models, smooth curves
• 0.2mm — All-purpose, great balance of speed and quality
• 0.3mm — Fast prints, structural parts, prototypes
• 0.12mm — Good compromise for detailed functional parts

How to Choose

Your nozzle size limits your layer height. With a standard 0.4mm nozzle, stay between 0.08mm and 0.32mm (20-80%% of nozzle diameter). Going outside that range causes quality issues.

I print 90%% of my stuff at 0.2mm on my Ender 3 V2 and Bambu Lab A1 Mini. That is the sweet spot for speed and quality.

Included Test Print

The companion STL is a stepped test block with 4 different heights (2mm, 4mm, 6mm, 8mm). Print it at different layer heights to see the difference yourself.

Print Settings:

• Material: PLA
• Nozzle: 0.4mm
• Layer height: Try 0.1mm, 0.2mm, and 0.3mm
• Infill: 20%%
• No supports needed

Included Test Print
This guide includes a companion STL test piece so you can practice the techniques described above. Print it with the recommended settings to test your results.

Recommended Print Settings

• Layer Height: 0.2mm
• Infill: 15-20%
• Material: PLA
• Supports: None needed

Personal use license included. Print and enjoy!