Matte PLA on Prusa XL

Nozzle Temp

220 °C

Range: 190 – 230 °C

Bed Temp

60 °C

Range: 25 – 60 °C

Print Speed

80

mm/s · max 90

Layer Height

0.20

mm · max 0.28

Fan Speed

100 %

1st layer: 0 %

1st Layer Speed

25

mm/s

Retraction

0.8 mm

@ 35 mm/s

Nozzle Type

Brass

Standard

  Retraction Note

• Keep retraction short on the Nextruder. If Matte PLA strings, dry the roll before changing retraction.

Settings

Recommended

Range

Nozzle Temperature

215 – 225 °C

190 – 230 °C

Bed Temperature

55 – 60 °C

25 – 60 °C

Print Speed

60 – 90 mm/s

up to 90 mm/s on this printer

First Layer Speed

20 – 30 mm/s

slower is better for adhesion

Layer Height

0.15 – 0.25 mm

0.10 – 0.28 mm

Fan Speed (Normal)

100 %

80 – 100 %

Fan Speed (1st Layer)

0 %

0 – 30 %

Retraction Distance

0.8 mm

Direct drive (Nextruder)

Retraction Speed

35 mm/s

30 – 40 mm/s

Nozzle Type

Brass (standard)

Brass is fine; hardened optional

Dry Filament

40 – 45 °C for 4 – 6 h

print from a dry box in humid weather

Enclosure

Not required

Not needed for PLA

Support Material

PVA, PETG (interface)

load it in a second toolhead

Wipe Tower Minimal Purge

15 mm³

35 mm³ when mixed with other materials

Printing Notes

Matte PLA gives a soft, low-shine surface that hides layer lines. OzFDM recommends 220 °C for it, a little hotter than our other PLAs.

It is stiffer than PLA+ (1500 – 1700 MPa tensile modulus) but stretches only 6 – 7 % before breaking, so use it for display parts, housings and models rather than clips and snap-fits.

The XL's 360 × 360 × 360 mm build volume suits large cosmetic parts, and its 16-tile heatbed heats only the area under and around the print, so a single small part does not heat the whole bed.

Multi-tool: PLA-only jobs use Prusa's 15 mm³ minimal purge on the wipe tower. If a dark colour shows in a light one after a tool change, raise the purge in small steps.

Slicer: PrusaSlicer with the Prusa XL printer profile and a 0.4 mm nozzle. Dry the filament at 40 – 45 °C for 4 – 6 h before a long print; every figure above assumes dry filament.

Troubleshooting

Brittle clips and snap-fits: Matte PLA stretches only 6 – 7 % before breaking. Print parts that need to flex in PLA+ or PETG instead.

Stringing: Dry at 40 – 45 °C for 4 – 6 h and drop to 215 °C.

Clogs on multi-tool jobs after long idle periods: Check that Ooze prevention is on. With it off, every toolhead stays at print temperature, which Prusa warns can degrade filament in the melt zone and clog the nozzle.