Third-Party Filament on Bambu Printers: eSUN PLA+, Overture PLA, Panchroma Matte and Sunlu PETG

Who these four are for

They suit you if you print mostly PLA and PETG, want a cheaper roll or a color Bambu is out of (in April 2026 How-To Geek counted a third of Bambu's PLA Basic colors as out of stock in the US store), and do not mind setting AMS slots by hand. For load-and-print with no setup, Bambu's own filament fits better (Alternatives).

eSUN PLA+

eSUN PLA+

PLA+Built-in preset: A1, P1, X1, H2D, H2S

Most recent owner reports describe eSUN on cardboard spools, some still on plastic; the listing we link does not say which. By one owner's count, the cardboard spool's hub measures 54.3 mm, inside the 53-58 mm range the AMS lite takes, though some printed adapters made for 55 mm do not fit it (forum). eSUN suggests drying at 50°C for 8 to 12 hours (eSUN).

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Overture PLA

Overture PLA

PLABuilt-in preset: A1, P1, X1, H2D, H2S

Overture now sells it as "High Speed PLA", rated for up to 300 mm/s (Overture); the Amazon listing we link says Rapid PLA, Bambu Studio's preset still "Overture PLA" (preset). Generic PLA High Speed, available for every current Bambu printer, is the other starting point: 18 mm³/s of flow instead of the preset's 15 (preset). Most owner reports below were written under the old name; nobody has shown yet whether the High Speed version behaves differently.

Fixes: weight in the hub, such as a couple of C cells or a filled desiccant holder (forum); the adapter ring for Overture's 199 x 66 mm cardboard spool that Bambu's AMS notes link (Bambu wiki, MakerWorld), though MakerWorld comments say it rubs the AMS lid on some spools; or moving the coil onto an empty Bambu spool (forum, forum). Printed edge rings are less popular: two owners found they made problem spools worse or did not help (forum, forum).

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Polymaker Panchroma Matte

Polymaker Panchroma Matte (formerly PolyTerra)

Matte PLABuilt-in preset: A1, P1, X1, H2D, H2S

Polymaker renamed PolyTerra PLA to Panchroma Matte, says the formula is the same and ships it on a cardboard spool (Polymaker); Bambu Studio's preset keeps the old name, "PolyTerra PLA" (preset). Tom's Hardware picks the Panchroma line as its best all-around PLA, with the cardboard spools as the drawback (Tom's Hardware, updated June 18, 2026).

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Sunlu PETG

Sunlu PETG

PETGBuilt-in preset: A1, P1, X1 only

Bambu Studio added a "SUNLU PETG" preset in February 2025 (All3DP), for fewer printers than the other three; bug reports asking for it on the P2S and H2D are still open (#9398, #6625).

Most forum owners who post numbers print at 230-245°C (forum, forum, forum, forum); outliers range from about 215°C for one batch (3DPrintBeginner) to 260°C on one owner's temperature tower (forum). Lower is not automatically cleaner: the starter of the forum's most-read Sunlu PETG thread, with over 100,000 views, saw more stringing at 230-240°C than at 255°C, though his 255°C parts felt more fragile (forum), and another owner's tower strung at both ends of the range (forum). Start from the SUNLU PETG preset or Generic PETG, calibrate flow and pressure advance, and run a temperature tower per color, since one owner found different ranges on three color boxes (forum). Sunlu's reformulated PETG 2.0 from August 2026 targets moisture sensitivity (All3DP); the listing we link does not carry the 2.0 name, and these reports concern the original PETG.

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Fit and settings on Bambu printers

Built-in presets per printer, from Bambu Studio's profile library (version 02.08.00.09 of September 22, 2026, BBL.json); the P1S shares the X1 Carbon's preset files.

A P2S owner quotes Bambu support calling the gap on the P2S deliberate: Bambu wants filament makers to submit their own parameters (forum). It costs speed: Generic PLA on a P2S caps flow at 12 mm³/s, where Bambu PLA Basic allows 21, or 40 on the high-flow setting (Generic PLA preset).

The brand list on the printer's screen and in its AMS slots comes from the printer firmware, not from Bambu Studio. An owner's 2024 photos of an X1 screen show eSUN, Overture and Polymaker (including PolyTerra PLA) next to Bambu Lab and Generic (forum). SUNLU is missing: Bambu support told an X1 Carbon owner its presets have not been added to the firmware, and A1 and P2S owners report the same (forum, forum, forum). The accepted fix: Generic PETG on the printer and SUNLU PETG in Bambu Studio, or the SUNLU preset saved as a custom filament, which syncs to the printer (forum). AMS filament backup only switches to a spool with the same brand, type, color and nozzle temperature (Bambu wiki), so give two spools of the same filament the same brand on the printer, eSUN or Generic.

Preset defaults against the makers' ranges

The flow cap, the preset's max volumetric speedThe most plastic per second the slicer lets the hotend melt., decides how fast a third-party filament prints more than the temperature does (preset files and maker pages: see sources).

Spools in the AMS and AMS lite

The AMS and AMS 2 Pro take spools 50-68 mm wide and 197-202 mm in diameter (Bambu wiki, Bambu store). Bambu recommends plastic spools there and strongly advises a spool adapter or adapter ring for cardboard ones, to cut slipping and debris (Bambu wiki). The AMS lite, for A-series printers only (Bambu wiki), holds spools 40-68 mm wide by a 53-58 mm center hole, which Bambu says helps with paper spools (Bambu store). AMS 2 Pro owners split on cardboard: reliable when tightly wound for one, terrible even with spool savers for another (forum).

For PETG, Bambu recommends an enclosed printer, because cold ambient air weakens layer bonding (Bambu wiki); for plates, see our build plate guide. Since April 2026 Bambu Studio shows an orange notice that non-Bambu filament may cause print quality issues; How-To Geek, which reported it, calls it nothing to worry about (How-To Geek). In August 2026 the same site ran Bambu, ELEGOO and Sunlu PLA side by side in a P2S AMS, all on Bambu's PLA Basic preset, and saw no difference in print quality (How-To Geek).

Alternatives

When to stick with Bambu filament

Bambu filament is genuinely good, and its RFID tag sets type, color and preset in the AMS by itself, which is convenient while you are learning; once you set profiles by hand, third-party filament can save money. Counterparts: PLA Basic for eSUN or Overture, PLA Matte for Panchroma, PETG Basic for Sunlu. PETG HF is discontinued and will not be restocked (Bambu store).

Compare per roll. After Bambu's September 16, 2026 price cut (announcement) and a further $1 off PLA Basic between October 18 and November 6, 2026 (Bambu US store), a PLA Basic refill costs $14.99 ($17.99 with a spool) and a PETG Basic refill $13.99; US owners say the September cut itself was about 40 to 50 cents a roll (forum). Bambu's Halloween bulk sale, which ran through October 16, 2026, went further: at 10 rolls a PLA Basic refill dropped to $11.19 and a PETG Basic refill to $9.79 (Bambu US store, bulk sale page, checked October 18, 2026), close to budget third-party spools; check the current Amazon price before you decide. Bambu's Black Friday bulk sale goes further still: 35% off from 10 rolls, which makes a PLA Basic refill $9.74 and a PETG Basic refill $9.09 (bulk sale page, checked November 6, 2026).

Refills come without a spool. The MarsWork Quick-Swap reusable spool (4 pcs) is made for Bambu refills (about 82 mm inner diameter, per the listing). It has no RFID tag, so you assign the filament in the AMS by hand, and its AMS fit is the seller's claim; Bambu has not confirmed it.

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Another third-party PLA

Hatchbox PLA, a plain 1.75 mm PLA, is a fallback when your usual brand is out of a color; with no Hatchbox preset in Bambu Studio, it runs on Generic PLA.

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More on third-party filament

What makes filament quality good?

• Diameter consistency: 1.75mm ± 0.02mm throughout the spool
• Roundness: Oval filament doesn't feed properly
• Moisture content: Dry filament prints better. Look for vacuum-sealed packaging with desiccant
• Winding quality: Tangled spools cause mid-print failures

PLA and PETG: brands and plates

PLA is the easiest material to switch brands with. Bambu's bed range for PLA: 35-45°C on the Cool Plate, 45-65°C on the Engineering (with glue), Smooth PEI and Textured PEI plates. For PETG: 60-80°C on the Engineering, Smooth PEI and Textured PEI plates; Bambu does not recommend the Cool Plate for PETG. It recommends glue stick or liquid glue on the plate in general, for adhesion, easier removal and to protect the surface. For Polymaker's PETG, Bambu Studio also ships a PolyLite PETG preset.

ABS / ASA recommendations

Requires an enclosed printer (P1S, P2S, X1C, X1E, X2D or H2 series). eSUN ABS+ and Polymaker ASA (formerly PolyLite ASA) have good community track records. ASA is UV-resistant for outdoor parts. Temperature: 240-280°C nozzle for both ABS and ASA, bed 90-100°C.

ASA per Bambu's wiki: not for the P1P, A1, A1 mini or A2L, and not through the AMS lite. Put glue on the plate and keep the enclosure closed while it prints (styrene). Polymaker ASA ships on a cardboard spool; Bambu's AMS notes suggest a spool adapter ring.

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TPU (Flexible) recommendations

Quality varies significantly; Overture TPU 95A works well. Print slowly, about 35–40 mm/s (Bambu Studio's Generic TPU profile caps flow at 3.2 mm³/s), and raise retraction from the profile value in 0.2 mm steps only if it oozes. Keep it out of the AMS, AMS lite and AMS 2 Pro: Bambu lists TPU 95A as too soft for the AMS path and sells a dedicated TPU for AMS. Bambu's TPU guides feed 95A TPU from a sealed dry box or an AMS HT used as a box, set higher than the printer; many owners also run it from the open external spool holder. Feed path and settings for each printer: Overture TPU 95A on Bambu printers.

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Common questions

Can Bambu Lab printers use third-party filament?

Yes. Bambu's material table rates PLA and PETG as compatible with open-frame and enclosed printers and with the AMS and AMS lite; it rates materials, not brands. Since April 2026 Bambu Studio shows an orange notice that non-Bambu filament may cause print quality issues; How-To Geek, which reported it, calls it nothing to worry about.

Do cardboard spools work in the Bambu AMS?

Often, with some care. Bambu recommends plastic spools in the AMS and strongly advises a spool adapter or adapter ring for cardboard ones, to cut slipping and debris. Owners report that most cardboard spools run until they get light near the end and then slip or ride up; the usual fixes are a printed ring or moving the filament onto an empty Bambu spool.

Is Panchroma Matte the same as PolyTerra or Bambu PLA Matte?

It is PolyTerra PLA renamed; Polymaker says the formula is unchanged. Some owners in the Bambu forum believe it is also Bambu PLA Matte, but neither Bambu nor Polymaker has said so, and we found no evidence for it.

What nozzle temperature works for Sunlu PETG on a Bambu printer?

Start from Bambu Studio's SUNLU PETG preset at 245°C if your printer has it, or Generic PETG at 255°C; Sunlu gives 240-260°C. Most forum owners who post numbers print at 230-245°C, so run a temperature tower when you open a new color.