Material guide · PLA
How to make useful PLA filament swatch cards
A useful PLA swatch shows the spool's printed colour and finish while preserving enough identifying information to find that exact filament again. Print every card with one controlled PLA profile so differences in the collection mostly come from the material, not the slicer.
Why make PLA samples?
PLA is sold in matte, silk, translucent, filled and conventional glossy formulations. A printed sample reveals layer lines, surface sheen and apparent colour far better than filament wound on a spool. It also gives you a physical reference when choosing colours away from a screen.
What information belongs on each card?
Include the manufacturer, product or colour name, and PLA as the material. In a separate inventory, add the exact product line, nozzle temperature, purchase source and any flow adjustment. Distinguish similar names such as “white,” “warm white” and “ivory” rather than shortening them to one label.
Recommended PLA settings
A 0.4 mm nozzle, 0.20 mm layers, 50–60 °C bed, 40–60 mm/s print speed and 80–100% fan are sensible starting points for many conventional PLAs. Use the nozzle-temperature range printed by the filament manufacturer and tune it for your printer. The broader swatch print-settings guide explains how to keep comparisons controlled.
Comparing colour and finish
Compare cards side by side after they have cooled, first under diffuse daylight and then under the artificial light used in the final object. Tilt the cards together: matte PLA scatters highlights, while silk and glossy PLA can shift dramatically with viewing angle. The filament colour comparison guide gives a repeatable lighting workflow.
Testing transparency
Most PLA described as transparent is translucent after FDM printing because boundaries between extrusion lines scatter light. Keep layer height, window thickness, line direction and light source fixed. Judge light transmission and diffusion separately from colour.
Testing ironing
Print a control with ironing off before evaluating an ironed top surface. Change only one ironing setting per trial and record speed and flow. A setting that improves ordinary PLA may drag or dull a silk or filled PLA, so do not generalize one result to the whole material family.
Storing the collection
Sort PLA cards by a rule you can maintain—manufacturer, colour family or finish—and give each card a stable inventory ID. Keep specialty types such as glow, wood-filled or carbon-filled PLA clearly marked because their handling and nozzle requirements may differ.
Generate a PLA swatch STL
Enter the exact brand and colour name, select PLA, inspect the preview and create a labelled sample.
Generate a PLA swatch card