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Filament switching versus dedicated tools

Bambu Lab P2S vs Prusa CORE One+ INDX

By The Crafty Catsman · Published August 24, 2026 · Official pages checked 2026-08-24

This comparison is not mainly about brands. It is about whether one nozzle should keep changing filament or whether every loaded material deserves a parked tool of its own.

The short answer

P2S uses one hotend with AMS 2 Pro filament switching; CORE One+ INDX parks a dedicated induction-heated tool for each material. Prusa states about 0.013 g of priming and roughly 12 seconds per change. No comparable fixed P2S grams-per-change figure is established, so a fair waste ratio must wait for matched testing. [1][3][4][5][7]

8 toolscompared INDX configuration

Dedicated parked path per loaded material [4][7]

~12 secPrusa material-change claim

Material-dependent; approximately 12 seconds for PLA [4][5]

~0.013 gPrusa priming claim

Manufacturer-stated, not independently measured here [4][7]

My current read

P2S optimizes convenience around one nozzle; INDX spends hardware complexity to avoid repeated filament swaps.

I would keep the P2S Combo for the everyday enclosed workflow I already value: four ready paths in the compared setup, automatic feed management, and an active dryer that fits my overnight-dry-then-print routine.

INDX becomes the more interesting architecture when a job repeatedly mixes rigid and flexible materials, soluble supports, or different nozzle sizes. Its dedicated tools change the waste and timing problem, but the system also occupies a different complexity and buying lane. The comparison should not pretend one manufacturer’s 0.013 g claim is a measured P2S ratio.

The evidence table

Make every machine answer the same question.

“Not confirmed” means the checked official page did not answer the question. It does not silently mean “No.” Open a cell for the exact condition, conflict, or boundary.

On smaller screens, scroll the table sideways. The question column stays pinned on the left.

Official manufacturer specifications and evidence boundaries checked 2026-08-24; owner observations apply only to the P2S Combo.
QuestionBambu LabP2S ComboOfficial sources plus a separate Crafty Catsman owner-evidence overlayOfficial page Prusa ResearchCORE One+ INDXOfficial manufacturer sources only; launch availability and conflicting abrasive guidance need recheckOfficial page
Switching architecture and waste
Material-switching architecture
Single hotend and nozzle with an automated AMS 2 Pro feed path and built-in filament cutter[1]
Confirmed
Passive toolchanger with induction-heated nozzles; each loaded material has its own parked tool and feed path[5][6]
Confirmed
Dedicated parked tool for each loaded material
No[1]
Confirmed
What this means

The compared P2S has one hotend/nozzle; loaded AMS filaments are not parked as separate nozzles.

Yes[4][6]
Confirmed
Different nozzle sizes in one job
Does not apply[1]
Does not apply
What this means

The compared P2S configuration has one installed nozzle; supported nozzle sizes are manual alternatives, not parked same-job tools.

Yes[4][5]
Confirmed
What this means
  • Compatible nozzle sizes are 0.25, 0.4, 0.5, 0.6, 0.8, and 1.0 mm.
Manufacturer-stated full material-change time
Not confirmed[3]
Not confirmed
What this means

No stable full material-change time comparable to Prusa’s last-extrusion-to-first-extrusion definition was found.

12 seconds[4][5][7]
Conditions apply
What this means

Qualifier: approximately

  • Prusa defines this from the last extrusion of one material to the first extrusion of the next on the model.
  • The launch update says the time varies by material; the conversion page identifies approximately 12 seconds for PLA.
Manufacturer-stated priming waste per change
Not confirmed[3]
Not confirmed
What this means

No official fixed grams-per-change value was found; purge volume varies with material transition, profile, model, and tuning.

0.013 g[4][7]
Conditions apply
What this means

Qualifier: about

  • Manufacturer-stated priming amount; not independently measured by The Crafty Catsman.
  • Material and profile can affect real jobs.

Prusa states this figure; The Crafty Catsman has not independently measured it.

Regular wipe or prime tower required
Not confirmed[3]
Not confirmed
What this means

The checked hardware page does not establish a universal tower rule; slicer and model decisions can change the answer.

No[4][5]
Confirmed
What this means

Qualifier: no regular wipe/prime tower

INDX still deposits a small priming pellet or micro-blob in its collector.

Material storage and feeding
Material paths in compared setup
4 paths[1]
Confirmed
8 paths[4][7]
Confirmed
What this means

This record compares the complete 8-tool configuration; 4-tool kit and assembled options also exist.

Maximum advertised material paths
20 paths[2]
Confirmed
What this means
  • Bambu describes four AMS 2 Pro plus four AMS HT units for eight units and 20 slots.
8 paths[4][6]
Confirmed
Active heated dryer in compared setup
Yes[3]
Confirmed
No[7]
Confirmed
What this means

Prusa presents a drybox as an optional accessory, not an integrated INDX dryer.

Maximum listed drying temperature
65 °C[3]
Confirmed
What this means
  • Material-specific temperature limits still apply.
Does not apply[7]
Does not apply
What this means

The compared INDX system does not include an active heated filament dryer.

Material boundaries
Rigid and flexible material in one job
Not confirmed[3]
Not confirmed
What this means

The page lists TPU for AMS support but does not establish a specific rigid-plus-flexible single-job workflow on P2S.

Yes[4][5]
Confirmed
Soluble support in the automated material path
Yes[3]
Conditions apply
What this means
  • PVA and BVOH must be dry.
  • Material and profile compatibility still need a job-specific check.
Yes[4][5]
Confirmed
Flexible-material feed boundary
TPU for AMS is supported; generic TPU and TPU 95A are not supported in the standard AMS 2 Pro feed path[3]
Conditions apply
What this means
  • Use the exact AMS-compatible TPU product or a bypass path for unsupported flexible filament.
TPU is listed among supported materials and Prusa markets rigid-plus-flexible printing through dedicated tools[4][5][6]
Confirmed
What this means

Recheck the currently shipped profile set before planning a rigid-plus-flexible job because software readiness can lag hardware capability.

Abrasive-material feed boundary
Named Bambu PLA-CF, PAHT-CF, and PETG-CF are supported; PET-CF and other carbon- or glass-filled filaments are excluded from the standard AMS 2 Pro path[3]
Conditions apply
What this means
  • Compatibility is filament-specific, not a blanket approval for abrasive composites.
Official pages conflict[5][6]
Official pages differ
What this means

The same official page gives quantified abrasive wear allowances in marketing copy but labels the technical supported-material set as non-abrasive. Treat routine abrasive-composite support as unresolved.

  • Overview copy gives abrasive wear limits for the surface-hardened nozzles.
  • Technical specification limits supported materials to non-abrasive materials.
Build space and heat
Build width
256 mm[1]
Confirmed
248 mm[6]
Confirmed
Build depth
256 mm[1]
Confirmed
205 mm[6]
Confirmed
Build height
256 mm[1]
Confirmed
270 mm[6]
Confirmed
Active chamber heating
No[2]
Confirmed
What this means

Bambu explicitly says the P2S does not have active chamber heating.

Yes[7]
Confirmed
Maximum controlled chamber temperature
Does not apply[2]
Does not apply
What this means

No controlled active-chamber ceiling applies because the P2S has no active chamber heater.

55 °C[7]
Confirmed
Availability and setup
Release and ordering state
released[1]
Confirmed
complete-printer-orders-open; first conversion kits shipping as of 2026-08-20[4]
Confirmed

The central difference

One nozzle changes filament; eight tools change nozzles.

That distinction also lets INDX use different nozzle sizes in one job. The P2S supports manually installed nozzle alternatives, but the compared machine does not keep several nozzle sizes parked for same-job selection. [4][5]

What the numbers do and do not prove

Prusa publishes a priming figure; P2S does not have a matching fixed value here.

Prusa states about 0.013 g of priming per change and says a regular wipe or prime tower is not required, although the system still deposits a small priming pellet or micro-blob in its collector. Prusa also describes approximately 12-second changes, with the exact time depending on material. [4][5][7]

The P2S side remains intentionally open. Purge volume varies with the material transition, color, profile, model, purge-to-object choices, and tuning. Until we run a matched job, a single grams-per-change value would create false precision. [3]

Where each architecture earns its keep

INDX widens material combinations; P2S keeps active drying integrated.

Prusa markets rigid-plus-flexible jobs, soluble supports, and multiple nozzle sizes through dedicated tools. Its official abrasive guidance is internally inconsistent: overview copy describes wear allowances while the technical line says supported materials are non-abrasive. [4][5][6]

The P2S Combo includes active AMS 2 Pro drying up to 65°C. The compared INDX system does not include an active heated filament dryer; Prusa presents dry storage as a separate accessory path. [3][7]

Choose by the job

The useful winner changes with the constraint.

Use these as shortlist rules, then verify the exact bundle, material, and current software before ordering.

01

Choose P2S first if

Four-path convenience and active drying are the daily priority

The one-nozzle system is the simpler owner-tested workflow, especially when most jobs do not demand constant material or nozzle changes.

02

Choose INDX first if

Material combinations justify dedicated tools

Rigid-plus-flexible work, soluble support, frequent changes, or several nozzle sizes in one job are the clearest reasons to study INDX.

03

Run a matched test if

Purge waste will decide the purchase

Compare the same model, transitions, colors, materials, slicer intent, and change count. Until then, leave the P2S measurement blank.

What still needs checking

Do not let an unanswered cell turn into a buying claim.

  • Do not compare Prusa’s 0.013 g figure to a guessed or manufacturer-benchmark P2S number; run a matched P2S transition test or leave the P2S cell unknown.
  • Resolve Prusa’s abrasive-material conflict between quantified wear allowances and the technical non-abrasive supported-material line.
  • Recheck current INDX shipment timing, profile readiness, and the four-versus-eight-tool configuration before ordering.

Questions that change the decision

P2S vs Prusa INDX FAQ

These answers match the visible evidence table and keep manufacturer silence separate from a confirmed “No.”

Does Prusa INDX eliminate all purge waste?

No. Prusa states approximately 0.013 g of priming material per change and collects a small pellet or micro-blob. Its claim is far below a conventional purge sequence, but it is not literally zero waste.

How much does the P2S purge per filament change?

There is no single fixed grams-per-change value established in this comparison. The transition, colors, materials, slicer profile, model, purge-to-object choices, and tuning can all change the result.

Can INDX print rigid and flexible materials in the same job?

Prusa markets rigid-plus-flexible printing through dedicated tools. Profile readiness and the exact materials still need to be confirmed for the shipped configuration and current software.

Can P2S and INDX use soluble supports?

Both manufacturers describe soluble-support paths, but the architectures differ. P2S switches filament through one hotend; INDX can dedicate a separate parked tool to the support material.

Which system is better for different nozzle sizes in one print?

INDX is designed for that job and supports selecting parked tools with different compatible nozzle sizes. The compared P2S configuration uses one installed nozzle, so changing sizes is a manual setup choice between jobs.

Check the underlying pages

Official sources used in this comparison

Product pages change. Availability, bundles, firmware, and material profiles should be rechecked before purchase.

  1. Bambu Lab

    Bambu Lab P2S official launch article

    Identifies the released P2S Combo, its 256 mm build cube, 300 °C nozzle, 110 °C bed, built-in cutter, and included AMS 2 Pro.

    Global, English · Checked 2026-08-24Open official source

  2. Bambu Lab

    Bambu Lab P2S official FAQ

    Says the P2S has no active chamber heater and describes the P2S expansion path.

    China, Simplified Chinese · Checked 2026-08-24Open official source

  3. Bambu Lab

    Bambu Lab AMS 2 Pro official U.S. product page and FAQ payload

    Lists 65 °C active drying and scoped filament support; the returned FAQ payload contains multiple print-while-drying answer variants.

    United States, English · Checked 2026-08-24Open official source

  4. Prusa Research

    Prusa CORE One+ (Gen 2) INDX shipping and complete-printer launch update

    Says conversion kits started shipping and complete printers opened for orders in four- or eight-tool configurations; also gives the 13 mg priming and approximately 12-second change claims.

    Global, English · Checked 2026-08-24Open official source

  5. Prusa Research

    Prusa INDX conversion-kit overview and material copy

    Describes dedicated passive tools, mixed rigid/flexible and soluble-support jobs, nozzle-size switching, and quantified abrasive nozzle-wear limits.

    Global, English · Checked 2026-08-24Open official source

  6. Prusa Research

    Prusa INDX conversion-kit technical specifications

    Lists the passive-toolchanger architecture, eight-tool maximum, 300 °C nozzle, 248 × 205 × 270 mm build area, TPU/PVA/BVOH, and other non-abrasive materials.

    Global, English · Checked 2026-08-24Open official source

  7. Prusa Research

    Prusa CORE One+ (Gen 2) INDX 8-Tool official product page

    Covers the complete 8-tool configuration, 55 °C active chamber, 120 °C bed, 300 °C nozzle, build volume, toolchange, priming waste, wipe-tower behavior, and optional drybox.

    Global, English · Checked 2026-08-24Open official source

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