Printer Filament Guide

Best Filament for the Prusa MINI+

Prusa's small, affordable open-frame Bowden printer: PLA/PETG specialist, not a TPU machine.

Last updated: June 2026

The MINI+ is Prusa's compact, budget entry: a single-arm open-frame Cartesian printer with a 180 × 180 × 180 mm bed and a removable spring-steel sheet. Unlike the MK and CORE lines, it uses a Bowden setup rather than the Nextruder direct drive, which keeps it small and affordable but makes flexibles harder. The hotend tops out around 280 C, the lowest in the current lineup.

What the Prusa MINI+ prints well

Recommended materials for this printer:

PLA PLA+ PETG TPU

No enclosure, so ABS, ASA, PC and nylon will warp and crack. Stick to PLA, PLA+, PETG and TPU for reliable prints. Carbon- and glass-fibre composites also need a hardened nozzle first.

Cheapest filament for the Prusa MINI+ right now
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It's happiest on PLA and PETG, where the Bowden tube and Prusa profiles give clean, dependable results in a small footprint. TPU is possible but fiddly because of the Bowden path, soft flexibles especially. With no enclosure and a 280 C ceiling, ASA and ABS are doable only on small parts with draft protection, and high-temp or filled materials are out of scope unless you swap to a hardened nozzle.

Prusa MINI+ specs that affect filament

Build volume
180 × 180 × 180 mm
Enclosure
Open frame
Heated chamber
No
Extruder
Bowden, dual-drive style 3:1 (not direct drive)
Max hotend temp
280°C
Stock nozzle
E3D-style brass nozzle, 0.4 mm (swappable)
Abrasive-ready (CF/GF)
Needs hardened nozzle
Multi-material
Single colour

The MINI+ suits makers who want a genuine Prusa, the same slicer and ecosystem, and a small, affordable machine for PLA and PETG. It makes a great first printer or a secondary unit. If you need flexibles, multi-material, or an enclosed chamber, step up to the MK4S or CORE One.

Filament notes for the Prusa MINI+

  • PLA and PETG are the comfort zone; Prusa's profiles make it nearly plug-and-play for both.
  • Bowden extruder (not direct drive) makes TPU and soft flexibles tricky, so print slow and stick to firmer TPUs.
  • 280 C hotend is the lowest in the lineup: fine for PLA/PETG, marginal for ASA/ABS, and not for high-temp blends.
  • No MMU support, so the MINI+ is single-material/single-color only.
  • Open frame, no chamber heat: keep ASA/ABS to small parts with the bed enclosed or draft-shielded.
  • Stock brass nozzle handles PLA/PETG; fit a hardened nozzle before any CF/GF filament.
  • Smaller build plate means filament drying still matters, since PETG stringing shows quickly at this size.
How SpoolHound tracks prices

The deals above are filtered to the materials the Prusa MINI+ handles, aggregated from multiple retailers daily and normalised to cost per kg, so the cheapest in-stock option is always on top. Prices refresh every 24 hours and are region-aware, so switch your region in the nav. Click through to the retailer to confirm the live checkout price.

Frequently Asked Questions

Can the Prusa MINI+ print TPU?
It can print firmer TPU slowly, but its Bowden extruder makes soft flexibles difficult. For regular flexible printing, a direct-drive machine like the MK4S or CORE One is a much better fit.
Does the MINI+ support multi-color printing?
No. The MINI+ doesn't support Prusa's MMU multi-material unit, so it's a single-material, single-color printer.
What is the highest-temp filament the MINI+ can run?
The hotend tops out around 280 C, the lowest in Prusa's current lineup. It's great for PLA and PETG, marginal for ASA/ABS (small parts only, draft-protected), and not suited to high-temp engineering materials.
Is the MINI+ a good first printer?
Yes, if you mostly print PLA and PETG. You get Prusa's slicer, profiles and support in a small, affordable open-frame package. Step up to the MK4S or CORE One if you need flexibles, multi-material, or an enclosed chamber.

Different printer? See filament by printer for the rest of the lineup, or browse cheapest filament by material.