Printer Filament Guide

Best Filament for the QIDI Plus5

A $749 high-temperature workhorse: third-generation 65 C chamber, 370 C hotend, 40 mm³/s flow and a 320 × 320 × 300 mm box sized for engineering parts.

Specs verified 2026-11 · prices refreshed daily · page updated 6 November 2026

QIDI Plus5 at a glance

The QIDI Plus5 is an enclosed printer with a 320 × 320 × 300 mm build volume and a hotend reaching 370°C. It handles ABS, ASA, PC and nylon, and it runs abrasive carbon- and glass-fibre filament on its stock nozzle. It has an actively heated chamber. Recommended materials: PLA, PLA+, PETG, TPU, PLA-CF, PETG-CF, ABS, ASA, PC, Nylon, CF / GF composites.

Build volume
320 × 320 × 300 mm
Enclosure
Enclosed
Heated chamber
Yes, actively heated
Max hotend
370°C
Stock nozzle
0.4 mm bimetal nozzle with hardened steel insert
Abrasive filament
Yes, stock nozzle

The Plus5 replaced the Plus4 in August 2026 and added 20 mm in every axis for a 320 × 320 × 300 mm volume in roughly the same footprint. The filament story is the third-generation chamber heater: 65 C of regulated chamber air, a 120 C bed and a 370 C hotend. That combination is aimed squarely at ABS, ASA, PC, PA and PPS-CF, where interlayer shrinkage rather than nozzle temperature is what cracks a part. Tom's Hardware put it plainly after testing, saying the machine was made for PPS, PA and PC, and that running low-temperature filament in it feels like taking a race car shopping.

What the QIDI Plus5 prints well

Recommended materials for this printer:

PLA PLA+ PETG TPU PLA-CF PETG-CF ABS ASA PC Nylon CF / GF composites

Enclosed and abrasive-ready out of the box, so it handles the full range from PLA to engineering composites, no nozzle swap needed.

Cheapest filament for the QIDI Plus5 right now
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Flow rate is the other upgrade that changes filament choice. The next-generation hotend is rated at 40 mm³/s, so 0.6 mm and 0.8 mm nozzles are worth fitting for large ABS or PA parts where you want thick walls down fast and fewer layers for shrinkage to act on. The stock 0.4 mm nozzle is bimetal with a hardened steel insert, shared with the Q2, so PLA-CF, PETG-CF, PA-CF and glass-filled grades go straight in. Heat-up is slow: expect a wait while the nozzle climbs to 350 C, the bed to 100 C and the chamber to 65 C before a high-temperature job starts.

QIDI Plus5 specs that affect filament

Build volume
320 × 320 × 300 mm
Enclosure
Enclosed
Heated chamber
Yes
Extruder
Direct drive with hardened steel gears, load cell in the hotend, 40 mm³/s high-flow hotend
Max hotend temp
370°C
Stock nozzle
0.4 mm bimetal nozzle with hardened steel insert
Abrasive-ready (CF/GF)
Yes, out of the box
Multi-material
QIDI Box, 4 spools per unit, up to 4 units chained for 16 filaments, with 65 C dry-while-printing; sold separately or bundled as the Combo

PLA needs a different approach on this machine. A hot chamber plus a dense PLA part is how you get heat creep, which is why QIDI sells the Polar Cooler, an add-on that pumps below-ambient air straight at the extruder so you can keep the chamber warm without softening filament in the heatsink. Without it, vent the chamber and leave the heater off for PLA and PETG. Filtration is a three-stage activated carbon and HEPA stack that keeps ABS and ASA fumes inside, and the QIDI Box adds four spools of 65 C drying, which nylon and PC need more than most owners expect.

Filament notes for the QIDI Plus5

  • The regulated 65 C chamber, 120 C bed and 370 C hotend make ABS, ASA, PC, PA and PPS-CF the point of this machine.
  • Leave the chamber heater off and vent the top for PLA and PETG, or fit the optional Polar Cooler to avoid heat creep.
  • The 40 mm³/s high-flow hotend pays off with 0.6 mm and 0.8 mm nozzles on large engineering-polymer parts.
  • Stock 0.4 mm bimetal nozzle has a hardened steel insert, so CF and GF filled filament prints without a swap.
  • Three-stage activated carbon and HEPA filtration keeps styrene fumes in the chamber when the doors are shut.
  • Allow extra preheat time: reaching 350 C nozzle, 100 C bed and 65 C chamber together is not quick.
  • Nylon and PC must be dry, and the QIDI Box is the only drying QIDI builds into this ecosystem.
How SpoolHound tracks prices

The deals above are filtered to the materials the QIDI Plus5 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

What is the QIDI Plus5 best at printing?
High-temperature engineering filament in large sizes. The 65 C actively heated chamber, 120 C bed and 370 C hotend are built for ABS, ASA, PC, PA and PPS-CF across a 320 × 320 × 300 mm volume, where warping and layer splitting beat most open-frame printers. Reviewers reached the same conclusion, calling it a high-temperature workhorse and noting that PLA barely stresses it. PLA and PETG print fine, but you are paying for capability you will not use if those are your only filaments.
Can the Plus5 print carbon fibre filament out of the box?
Yes. The stock 0.4 mm nozzle is a bimetal unit with a hardened steel insert, the same toolhead nozzle QIDI uses on the Q2, and the extruder runs hardened steel gears. PLA-CF, PETG-CF, PA-CF, ABS-CF and glass-filled grades will not wear it out. For chopped-fibre filament, a 0.6 mm or 0.8 mm nozzle clears fibre bundles better and takes advantage of the 40 mm³/s hotend. Keep CF nylon dry, because it absorbs moisture faster than almost anything else on the shelf.
Why is my PLA under-extruding on the Plus5?
Almost always chamber heat. PLA softens around 60 C, so a chamber held near 65 C warms the filament inside the heatsink until it swells and binds, and the symptom is gradual under-extrusion rather than a clean jam. Turn the chamber heater off for PLA and PETG and vent the enclosure, or add QIDI's Polar Cooler, which blows below-ambient air at the extruder so the chamber can stay warm for multi-material work. The same rule applies to PLA silk and glow-in-the-dark PLA.
How does the Plus5 differ from the Plus4 for filament?
The Plus5 grew from 305 × 305 × 280 mm to 320 × 320 × 300 mm, moved from a second-generation to a third-generation chamber heater and fitted a higher-flow hotend rated at 40 mm³/s. Nozzle and bed ceilings are unchanged at 370 C and 120 C, so the material list is the same: PLA, PETG, TPU, ABS, ASA, PA, PC and fibre-filled grades. The gains are bigger engineering parts, faster thick-wall extrusion and a $749 launch price, which is $50 under what the Plus4 debuted at.

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