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AMS lite · Open frame · 100 °C bed

Filament for the Bambu Lab A1

The A1 is an open-frame bed slinger with the AMS lite on top. Two numbers decide what you can print on it: no heated chamber, and a bed that stops at 100 °C. Everything below follows from those.

What we would put on it Full compatibility table
FilamentBay spools beside an enclosed desktop 3D printer
FeederAMS lite
ChamberOpen
Max nozzle300 °C
Max bed100 °C
Feeds from AMS11 materials
External holder7 materials

Printer limits from Bambu Lab's published specification, read 2026-09-06. Material counts are derived from those limits, not from a list we keep by hand.

What we would put on it

All materials

PLA Filament

Explore for décor and figurines · rapid prototypes

$15.99 / 1 kg · 1.75 mm

Stock confirmation required

AMS / AMS lite

4+ ≈ $14.07 / spool
10 colors
  • White
  • Grey
  • Black
  • Light Green
  • Dark Red
  • Orange
Choose options

PLA Matte Filament

Explore for planters and homeware · miniatures

$17.99 / 1 kg · 1.75 mm

Stock confirmation required

AMS / AMS lite

4+ ≈ $15.83 / spool
5 colors
  • White
  • Grey
  • Black
  • Coral
  • Mustard
Choose options

PETG Filament

Explore for planters and outdoor parts · mechanical brackets

$16.99 / 1 kg · 1.75 mm

Stock confirmation required

AMS / AMS lite

4+ ≈ $14.95 / spool
18 colors
  • White
  • Grey
  • Black
  • Red
  • Yellow
  • Blue
Choose options

PLA+ Filament

Explore for phone stands and holders · toys that get dropped

$17.99 / 1 kg · 1.75 mm

Stock confirmation required

AMS / AMS lite

4+ ≈ $15.83 / spool
10 colors
  • White
  • Grey
  • Black
  • Green
  • Red
  • Orange
Choose options

PLA Silk Filament

Explore for vases and sculptures · gift boxes

$18.99 / 1 kg · 1.75 mm

Stock confirmation required

AMS / AMS lite

4+ ≈ $16.71 / spool
14 colors
  • White
  • Grey
  • Pink
  • Blue
  • Gold
  • Red
Choose options

PCTG Filament

Explore for wearable housings · gears and mechanisms

$24.99 / 1 kg · 1.75 mm

Stock confirmation required

AMS / AMS lite

4+ ≈ $21.99 / spool
3 colors
  • White
  • Black
  • Clear
Choose options

Does the spool fit?

DimensionFilamentBay 1 kg spoolAMS lite acceptsFits
Width65 mm40–68 mmYes
Outer diameter200 mmNot publishedNot published
Hub (inner diameter)54 mm53–58 mmYes
Spool materialPlasticPlastic recommendedYes
Empty weight160 g——

Bambu Lab's wording: “The AMS lite supports spools with a width of 40-68 mm and an inner diameter of 53-58 mm.” Source. Where a figure is not published we say so rather than guess.

Every material, and where it goes

MaterialNozzleBedOn the A1Why
ABA 250–270 °C 80–100 °C Not on this machine Open frame. ABA cracks and lifts on parts larger than a palm without a heated chamber.
ABS 250–270 °C 80–100 °C Not on this machine Open frame. ABS cracks and lifts on parts larger than a palm without a heated chamber.
ASA 250–270 °C 90–110 °C AMS lite Nozzle 250–270 °C, bed 90–110 °C.
CF 260–280 °C 100–110 °C External holder Use the external spool holder. Feeder suitability is not established for this material.
ESD 260–280 °C 100–110 °C External holder Use the external spool holder. Feeder suitability is not established for this material.
PETG Glitter 240–260 °C 60–70 °C AMS lite Nozzle 240–260 °C, bed 60–70 °C.
PLA Matte 200–230 °C 50–65 °C AMS lite Nozzle 200–230 °C, bed 50–65 °C.
PC 260–280 °C 100–110 °C AMS lite Runs at the top of this bed's range (100–110 °C). Use a brim on wide parts.
PCTG 260–280 °C 100–110 °C AMS lite Runs at the top of this bed's range (100–110 °C). Use a brim on wide parts.
PETG 240–260 °C 60–70 °C AMS lite Nozzle 240–260 °C, bed 60–70 °C.
PLA 200–240 °C 50–65 °C AMS lite Nozzle 200–240 °C, bed 50–65 °C.
PLA+ 200–240 °C 50–65 °C AMS lite Nozzle 200–240 °C, bed 50–65 °C.
PLA Silk 200–230 °C 50–65 °C AMS lite Nozzle 200–230 °C, bed 50–65 °C.
TPU 72D 220–240 °C 30–60 °C AMS lite AMS lite documentation lists 55D and harder as usable, and 72D is above that.
TPU 85A 220–240 °C 30–60 °C External holder AMS lite documentation excludes 95A and softer.
TPU 90A 220–240 °C 30–60 °C External holder AMS lite documentation excludes 95A and softer.
TPU 95A 220–240 °C 30–60 °C External holder AMS lite documentation excludes 95A and softer.
TPU 98A 220–240 °C 30–60 °C External holder AMS lite documentation excludes 95A and softer.
PETG Transparent 240–260 °C 60–70 °C AMS lite Nozzle 240–260 °C, bed 60–70 °C.
PLA Wood 200–230 °C 50–65 °C External holder Use the external spool holder. Feeder suitability is not established for this material.

On flexible material, Bambu Lab's own wording: “TPU that can be used with AMS lite: 77D, 55D, or higher hardness. TPU that cannot be used with AMS lite: 95A, 85A, 83A, 80A, or lower hardness.” Source

Worth knowing before you order

  • The AMS lite is the only feeder that publishes an inner-diameter window, 53–58 mm. Our 54 mm hub sits inside it.
  • It is also the only Bambu feeder whose documentation names a TPU hardness it will take: 55D and harder. Our 72D qualifies; 85A through 98A do not.
  • Use the external holder for wood, carbon-fiber and ESD grades; check the nozzle and temperature requirements too.

Profiles, not guesswork

The settings hub identifies generated starting values, target machines and unsupported material mappings. A preset is not validation on this printer; review the target and calibrate temperature, flow and retraction before a production part.

Get the profiles All Bambu Lab compatibility

Shipped from the US

Stock, destination charges and shipment timing are confirmed before payment. The published contiguous-US offer applies above $35; see the shipping policy for conditions. Unopened-spool returns use the 30-day policy. Any 4 spools take 12% off, mixed however you like.

Start a mixed order

Bambu Lab A1 filament questions

Do FilamentBay spools fit the Bambu Lab A1?
Yes. The A1 uses the AMS lite, which Bambu Lab publishes as taking spools 40–68 mm wide with a 53–58 mm inner diameter. Our 1 kg spool measures 65 × 200 mm with a 54 mm hub, in injection-moulded plastic rather than cardboard.
Can I print flexible TPU on the A1?
From the AMS lite, only the Shore D grade. Bambu Lab's AMS lite documentation says "TPU that can be used with AMS lite: 77D, 55D, or higher hardness", which covers our 72D but excludes 85A through 98A. Print the softer grades from the external spool holder.
What is the hottest bed the A1 reaches?
100 °C, with a 300 °C nozzle, per Bambu Lab's published specification. That is what rules out ABA, ABS on this machine.
Can I print ABS on the A1?
Not reliably. The frame is open, so anything larger than a palm tends to crack or lift. Use PETG for tough parts on this machine, or PCTG if the bed reaches its temperature.
Do you have Bambu Studio profiles?
See the settings hub for each material and format. Some files are starting presets with a different target machine, some are manual worksheets, and unconfirmed polymer mappings are withdrawn. No universal import or printer validation is claimed.
Do 3 kg and 5 kg spools work on the A1?
Not in the AMS lite: they are wider and larger than the published window. Print them from an external holder, or re-spool onto an empty 1 kg spool.

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