Data stamp: 2026-09-06
Knobs: REGION US · BUDGET_USD 1,300 all-in ($1,223.53 pre-tax at 6.25% Massachusetts sales tax) · STRETCH_USD 1,600 · INCLUDE_REFURB flagged · INCLUDE_KITS whole-printer only · INCLUDE_PREORDER excluded · prices retrieved within 30 days of the data stamp · 67 configurations scored.

## Knobs in force

| Knob | Value | What it means |
|---|---|---|
| RUN_DATE | 2026-09-06 | Every current claim in this file is relative to this date. |
| REGION | US | Only products a US consumer can buy new. |
| BUDGET_USD | $1,300.00 | Hard ceiling on total spend, tax included. |
| INCLUDE_SALES_TAX | true, 6.25% | Massachusetts. $1,300.00 all-in is $1,223.53 pre-tax. |
| STRETCH_USD | $1,600.00 | Long-list ceiling, $1,505.88 pre-tax. Captured, not recommended. |
| INCLUDE_REFURB | flagged | Manufacturer-refurbished with warranty, scored, flagged. No used market. |
| INCLUDE_KITS | whole-printer only | Bolt-on multi-material kits are not a qualifying path. |
| INCLUDE_PREORDER | excluded | Announced, pre-order and crowdfunded machines appear only under Timing. |
| Price window | 30 days | Prices retrieved within 30 days of 2026-09-06. |

| Default weights, out of 100 |
|---|
| Just-works reliability and support 25 · Filament magazine 15 · Value within budget 15 · Openness and longevity 15 · Room to grow 5 · Materials now 15 · Software and ecosystem UX 5 · Practicalities for a shared home 5 |

| Preset | What it changes |
|---|---|
| openness30 | Openness raised to 30, reliability lowered to 15. |
| budget1200 | Weights unchanged; the budget filter hardens to $1,200 all-in. |
| mmu30 | The magazine raised to 25, value down to 5, practicalities to 0. |
| value0 | Value set to 0 — pure capability, with the budget still a hard filter. |
| materials35 | Materials raised to 35 — if ABS-GF turns out to be the whole reason for the purchase. |


## Leaderboard

| Rank | Configuration | Buy today pre-tax | Buy today all-in | Future-proofing | Fits budget | Weighted score |
|---|---|---|---|---|---|---|
| 1 | Bambu Lab P2S + AMS 2 Pro + External Exhaust Fan Kit | $768.99 | $817.05 | $0.00 | yes | 7.240 |
| 2 | Bambu Lab P2S + AMS 2 Pro | $749.00 | $795.81 | $0.00 | yes | 7.145 |
| 3 | QIDI Tech Q2 + QIDI Box | $649.00 | $689.56 | $0.00 | yes | 7.085 |
| 4 | Bambu Lab X2D + AMS 2 Pro | $899.00 | $955.19 | $0.00 | yes | 6.980 |
| 5 | QIDI Tech Plus5 + QIDI Box | $899.00 | $955.19 | $0.00 | yes | 6.960 |
| 6 | Bambu Lab P1S + AMS 2 Pro | $579.00 | $615.19 | $49.48 | yes | 6.735 |
| 7 | Bambu Lab X2D + AMS 2 Pro (2 units) | $1,149.00 | $1,220.81 | $0.00 | yes | 6.570 |
| 8 | Bambu Lab P1S + AMS (first generation) (refurbished) | $467.00 | $496.19 | $49.48 | yes | 6.440 |
| 9 | Bambu Lab P1S + AMS (first generation) | $549.00 | $583.31 | $49.48 | yes | 6.355 |
| 10 | Bambu Lab P1S + AMS 2 Pro (refurbished) | $492.00 | $522.75 | $49.48 | yes | 6.250 |

| Rank | Configuration | Reliability | Multi-material | Value | Openness | Upgrade path | Materials now |
|---|---|---|---|---|---|---|---|
| 1 | Bambu Lab P2S + AMS 2 Pro + External Exhaust Fan Kit | 7.5 | 7.0 | 9.5 | 4.6 | 7.1 | 7.2 |
| 2 | Bambu Lab P2S + AMS 2 Pro | 7.5 | 7.0 | 9.4 | 4.6 | 7.0 | 6.8 |
| 3 | QIDI Tech Q2 + QIDI Box | 4.0 | 7.5 | 9.0 | 9.0 | 9.3 | 7.8 |
| 4 | Bambu Lab X2D + AMS 2 Pro | 6.0 | 6.5 | 8.3 | 4.2 | 9.6 | 9.5 |
| 5 | QIDI Tech Plus5 + QIDI Box | 5.0 | 7.5 | 7.3 | 8.0 | 9.0 | 8.3 |
| 6 | Bambu Lab P1S + AMS 2 Pro | 8.0 | 7.0 | 8.9 | 5.2 | 6.2 | 4.6 |
| 7 | Bambu Lab X2D + AMS 2 Pro (2 units) | 5.8 | 7.5 | 5.0 | 4.2 | 9.5 | 9.5 |
| 8 | Bambu Lab P1S + AMS (first generation) (refurbished) | 7.0 | 6.0 | 9.6 | 5.2 | 6.2 | 4.6 |
| 9 | Bambu Lab P1S + AMS (first generation) | 7.5 | 6.0 | 8.2 | 5.2 | 6.2 | 4.6 |
| 10 | Bambu Lab P1S + AMS 2 Pro (refurbished) | 7.5 | 7.0 | 6.5 | 5.2 | 6.2 | 4.6 |

| Rank | Configuration | Software UX | Practicalities | Slots | Multi-material type | Enclosure | Status flags |
|---|---|---|---|---|---|---|---|
| 1 | Bambu Lab P2S + AMS 2 Pro + External Exhaust Fan Kit | 7.0 | 8.3 | 4 | spool-switching single nozzle | enclosed passive |  |
| 2 | Bambu Lab P2S + AMS 2 Pro | 7.0 | 8.0 | 4 | spool-switching single nozzle | enclosed passive |  |
| 3 | QIDI Tech Q2 + QIDI Box | 6.7 | 5.8 | 4 | spool-switching single nozzle | enclosed actively heated |  |
| 4 | Bambu Lab X2D + AMS 2 Pro | 7.0 | 7.5 | 4 | spool-switching single nozzle | enclosed actively heated |  |
| 5 | QIDI Tech Plus5 + QIDI Box | 5.5 | 6.4 | 4 | spool-switching single nozzle | enclosed actively heated |  |
| 6 | Bambu Lab P1S + AMS 2 Pro | 6.4 | 5.0 | 4 | spool-switching single nozzle | enclosed passive |  |
| 7 | Bambu Lab X2D + AMS 2 Pro (2 units) | 7.0 | 7.3 | 4 | spool-switching single nozzle | enclosed actively heated |  |
| 8 | Bambu Lab P1S + AMS (first generation) (refurbished) | 6.4 | 5.0 | 4 | spool-switching single nozzle | enclosed passive | refurb |
| 9 | Bambu Lab P1S + AMS (first generation) | 6.4 | 5.0 | 4 | spool-switching single nozzle | enclosed passive |  |
| 10 | Bambu Lab P1S + AMS 2 Pro (refurbished) | 6.4 | 5.0 | 4 | spool-switching single nozzle | enclosed passive | refurb |


## Itemized costs

| Rank | Configuration | Printer | Multi-material unit | Required accessories | Shipping | Tax | All-in |
|---|---|---|---|---|---|---|---|
| 1 | Bambu Lab P2S + AMS 2 Pro + External Exhaust Fan Kit | $749.00 | in the combo | $19.99 | $0.00 | $48.06 | $817.05 |
| 2 | Bambu Lab P2S + AMS 2 Pro | $749.00 | in the combo |  | $0.00 | $46.81 | $795.81 |
| 3 | QIDI Tech Q2 + QIDI Box | $649.00 | in the combo |  | $0.00 | $40.56 | $689.56 |
| 4 | Bambu Lab X2D + AMS 2 Pro | $899.00 | in the combo |  | $0.00 | $56.19 | $955.19 |
| 5 | QIDI Tech Plus5 + QIDI Box | $899.00 | in the combo |  | $0.00 | $56.19 | $955.19 |
| 6 | Bambu Lab P1S + AMS 2 Pro | $579.00 | in the combo |  | $0.00 | $36.19 | $615.19 |
| 7 | Bambu Lab X2D + AMS 2 Pro (2 units) | $1,149.00 | in the combo |  | $0.00 | $71.81 | $1,220.81 |
| 8 | Bambu Lab P1S + AMS (first generation) (refurbished) | $467.00 | in the combo |  | $0.00 | $29.19 | $496.19 |
| 9 | Bambu Lab P1S + AMS (first generation) | $549.00 | in the combo |  | $0.00 | $34.31 | $583.31 |
| 10 | Bambu Lab P1S + AMS 2 Pro (refurbished) | $492.00 | in the combo |  | $0.00 | $30.75 | $522.75 |

| Rank | Configuration | Future-proofing items | Future-proofing total | Price retrieved |
|---|---|---|---|---|
| 1 | Bambu Lab P2S + AMS 2 Pro + External Exhaust Fan Kit | none | $0.00 | 2026-09-06 |
| 2 | Bambu Lab P2S + AMS 2 Pro | none | $0.00 | 2026-09-06 |
| 3 | QIDI Tech Q2 + QIDI Box | none | $0.00 | 2026-09-06 |
| 4 | Bambu Lab X2D + AMS 2 Pro | none | $0.00 | 2026-09-06 |
| 5 | QIDI Tech Plus5 + QIDI Box | none | $0.00 | 2026-09-06 |
| 6 | Bambu Lab P1S + AMS 2 Pro | Hardened Steel Upgrade Combo - P1 Series (hardened extruder gear + hardened complete hotend 0.4 mm) | $49.48 | 2026-09-06 |
| 7 | Bambu Lab X2D + AMS 2 Pro (2 units) | none | $0.00 | 2026-09-06 |
| 8 | Bambu Lab P1S + AMS (first generation) (refurbished) | Hardened Steel Upgrade Combo - P1 Series (hardened extruder gear + hardened complete hotend 0.4 mm) | $49.48 | 2026-09-06 |
| 9 | Bambu Lab P1S + AMS (first generation) | Hardened Steel Upgrade Combo - P1 Series (hardened extruder gear + hardened complete hotend 0.4 mm) | $49.48 | 2026-09-06 |
| 10 | Bambu Lab P1S + AMS 2 Pro (refurbished) | Hardened Steel Upgrade Combo - P1 Series (hardened extruder gear + hardened complete hotend 0.4 mm) | $49.48 | 2026-09-06 |


## Head-to-head

| Row | Bambu Lab P2S + AMS 2 Pro + External Exhaust Fan Kit | Bambu Lab P2S + AMS 2 Pro | Bambu Lab X2D + AMS 2 Pro | QIDI Tech Q2 + QIDI Box | QIDI Tech Plus5 + QIDI Box | Elegoo Centauri Carbon 2 (standard) |
|---|---|---|---|---|---|---|
| Rank | 1 | 2 | 4 | 3 | 5 | 11 |
| Buy today pre-tax | $768.99 | $749.00 | $899.00 | $649.00 | $899.00 | $399.00 |
| Buy today all-in | $817.05 | $795.81 | $955.19 | $689.56 | $955.19 | $423.94 |
| Future-proofing | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 |
| Fits budget | yes | yes | yes | yes | yes | yes |
| Weighted score | 7.240 | 7.145 | 6.980 | 7.085 | 6.960 | 6.230 |
| Just-works reliability and support | 7.5 | 7.5 | 6.0 | 4.0 | 5.0 | 4.0 |
| Filament magazine | 7.0 | 7.0 | 6.5 | 7.5 | 7.5 | 5.5 |
| Value within budget | 9.5 | 9.4 | 8.3 | 9.0 | 7.3 | 10.0 |
| Openness and longevity | 4.6 | 4.6 | 4.2 | 9.0 | 8.0 | 8.2 |
| Room to grow | 7.1 | 7.0 | 9.6 | 9.3 | 9.0 | 5.4 |
| Materials now | 7.2 | 6.8 | 9.5 | 7.8 | 8.3 | 5.0 |
| Software and ecosystem UX | 7.0 | 7.0 | 7.0 | 6.7 | 5.5 | 4.5 |
| Practicalities for a shared home | 8.3 | 8.0 | 7.5 | 5.8 | 6.4 | 8.6 |
| Slots | 4 | 4 | 4 | 4 | 4 |  |
| Multi-material type | spool-switching single nozzle | spool-switching single nozzle | spool-switching single nozzle | spool-switching single nozzle | spool-switching single nozzle |  |
| Enclosure | enclosed passive | enclosed passive | enclosed actively heated | enclosed actively heated | enclosed actively heated | enclosed passive |
| Status flags | none | none | none | none | none | none |
| ASA-ready | yes | yes | yes | yes | yes | yes |
| CF/GF-ready now | yes | yes | yes | yes | yes | yes |
| CF/GF-ready with upgrade | yes | yes | yes | yes | yes | yes |
| ABS-GF accepted in the magazine | no | no | no | yes | yes |  |
| Hardened-parts cost | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 |
| Chamber max C |  |  | 65 | 65 | 65 |  |
| Hotend max C | 300 | 300 | 300 | 370 | 370 | 350.0 |
| LAN-only mode | partial (as of 2026-09-06) | partial (as of 2026-09-06) | partial (as of 2026-09-06) | full (as of 2026-09-06) | full (as of 2026-09-06) | partial (as of 2026-09-06) |
| Third-party slicer sends directly | yes (2026-09-06) | yes (2026-09-06) | yes (2026-09-06) | yes (2026-09-06) | yes (2026-09-06) | yes (2026-05-29) |
| Android app | full-featured | full-featured | full-featured | basic | basic | basic |
| Filtration | carbon | carbon | HEPA + carbon | HEPA + carbon | HEPA + carbon | HEPA + carbon |
| Noise dB | 48.0 | 48.0 | 55.0 | 56.0 | 55.0 | 46.0 |

Why each judgment scored what it did, one line per configuration.

| Row | Bambu Lab P2S + AMS 2 Pro + External Exhaust Fan Kit | Bambu Lab P2S + AMS 2 Pro | Bambu Lab X2D + AMS 2 Pro | QIDI Tech Q2 + QIDI Box | QIDI Tech Plus5 + QIDI Box | Elegoo Centauri Carbon 2 (standard) |
|---|---|---|---|---|---|---|
| Just-works reliability and support | Identical machine and identical evidence to the plain P2S... | Eleven months on sale with one independent measured review... | A 250-hour independent measured review plus two long-term... | Four independent measured reviews and owners at 450-792 hours... | Well reviewed by two independent testers - Tom's Hardware... | Heavily tested - six independent measured reviews plus a... |
| Filament magazine | The best-executed magazine in this study: four sealed slots... | The best-executed magazine in this study: four sealed slots... | The same excellent box as the P2S configuration, marked down... | The QIDI Box accepts more than anything else here and dries... | The QIDI Box accepts more than anything else here and dries... | This is the CANVAS with the thermal top cover, and Elegoo's... |
| Value within budget | The same P2S Combo plus Bambu's own $19.99 exhaust fan kit:... | $795.81 all-in with a genuinely zero future-proofing bill -... | $955.19 all-in, nothing to buy later, and $345 of headroom... | $689.56 all-in and genuinely nothing to buy later - bimetal... | $955.19 all-in, nothing to buy later, $345 of headroom, and... | The value anchor: $423.94 all-in with tax and a genuinely... |
| Openness and longevity | LAN Only works and no account is needed to slice and print... | LAN Only works and no account is needed to slice and print... | LAN Only works and no account is needed to slice and print... | As open as a commercial appliance gets short of Prusa: real... | An independent reviewer who lived with it for weeks... | The firmware source for this exact model is public under... |
| Room to grow | Identical headroom to the plain P2S - twenty magazine lanes... | Magazine growth is excellent - Bambu publishes four chained... | The X2D already has the thing everything else has to buy: an... | Almost nothing is left to buy: an actively heated 65 C... | The same headroom as the other heated-chamber QIDIs - 65 C... | A capable machine with almost no growth left in it. |
| Materials now | The same strong hardware - hardened nozzle and extruder gear... | This is the best passive-enclosure answer for his exact list:... | The top of this field and the only chamber independently... | Everything ABS needs is standard - 65 C heated chamber, HEPA... | The strongest non-Bambu answer to his materials list: a 65 C... | It has the best fume control here - a real HEPA plus... |
| Software and ecosystem UX | Best-evidenced app in this study - Bambu Handy rates 4.5... | Best-evidenced app in this study - Bambu Handy rates 4.5... | Best-evidenced app in this study - Bambu Handy rates 4.5... | Same strong local stack as the Max4 - Fluidd in a browser... | This is the slicer-profile friction point in the study made... | ElegooSlicer is an OrcaSlicer fork and upstream OrcaSlicer... |
| Practicalities for a shared home | PCMag's lab measured a 48 dB average while printing, several... | PCMag's lab measured a 48 dB average while printing, several... | CNC Kitchen measured about 55 dBA at one meter during normal... | 3dwork.io measured 50-60 dB across several weeks of intensive... | 3dwork.io's multi-week hands-on test measured roughly 45-55... | Notebookcheck measured 44-47 dBA average with peaks to 54 dBA... |


## Sensitivity

Rank of the default top 5 under every weighting this study runs. "out" means the configuration
was filtered out under that preset rather than beaten.

| Configuration | default | openness30 | budget1200 | mmu30 | value0 | materials35 |
|---|---|---|---|---|---|---|
| Bambu Lab P2S + AMS 2 Pro + External Exhaust Fan Kit | 1 | 3 | 1 | 3 | 3 | 5 |
| Bambu Lab P2S + AMS 2 Pro | 2 | 4 | 2 | 4 | 5 | 6 |
| QIDI Tech Q2 + QIDI Box | 3 | 1 | 3 | 2 | 4 | 4 |
| Bambu Lab X2D + AMS 2 Pro | 4 | 6 | 4 | 6 | 6 | 1 |
| QIDI Tech Plus5 + QIDI Box | 5 | 2 | 5 | 1 | 1 | 2 |

- **default**: The weights as briefed. Winner: Bambu Lab P2S + AMS 2 Pro + External Exhaust Fan Kit.
- **openness30**: Openness raised to 30, reliability lowered to 15. Winner: QIDI Q2 Combo (Q2 + QIDI Box, 4 colors). Biggest mover in the default top 5: QIDI Tech Plus5 + QIDI Box, 5 to 2.
- **budget1200**: Weights unchanged; the budget filter hardens to $1,200 all-in. Winner: Bambu Lab P2S Combo (AMS 2 Pro) + External Exhaust Fan Kit. Biggest mover in the default top 5: nothing in the default top 5 changes rank.
- **mmu30**: The magazine raised to 25, value down to 5, practicalities to 0. Winner: QIDI Plus5 Combo (Plus5 + QIDI Box, 4 colors). Biggest mover in the default top 5: QIDI Tech Plus5 + QIDI Box, 5 to 1.
- **value0**: Value set to 0 — pure capability, with the budget still a hard filter. Winner: QIDI Plus5 Combo (Plus5 + QIDI Box, 4 colors). Biggest mover in the default top 5: QIDI Tech Plus5 + QIDI Box, 5 to 1.
- **materials35**: Materials raised to 35 — if ABS-GF turns out to be the whole reason for the purchase. Winner: Bambu Lab X2D AMS Combo (AMS 2 Pro). Biggest mover in the default top 5: Bambu Lab P2S + AMS 2 Pro + External Exhaust Fan Kit, 1 to 5.


## Openness status

- **Bambu Lab P2S + AMS 2 Pro + External Exhaust Fan Kit** — firmware: proprietary (source not published); LAN-only mode: partial; account required to print: no; third-party slicer sends directly: yes (dated 2026-09-06); filament restrictions: RFID-preferential; as of 2026-09-06; source src-bambu-wiki-lan-mode.
- **Bambu Lab P2S + AMS 2 Pro** — firmware: proprietary (source not published); LAN-only mode: partial; account required to print: no; third-party slicer sends directly: yes (dated 2026-09-06); filament restrictions: RFID-preferential; as of 2026-09-06; source src-bambu-wiki-lan-mode.
- **QIDI Tech Q2 + QIDI Box** — firmware: Klipper open (source published); LAN-only mode: full; account required to print: no; third-party slicer sends directly: yes (dated 2026-09-06); filament restrictions: none; as of 2026-09-06; source src-qidi-us-q2.
- **Bambu Lab X2D + AMS 2 Pro** — firmware: proprietary (source not published); LAN-only mode: partial; account required to print: no; third-party slicer sends directly: yes (dated 2026-09-06); filament restrictions: RFID-preferential; as of 2026-09-06; source src-bambu-wiki-lan-mode.
- **QIDI Tech Plus5 + QIDI Box** — firmware: Klipper open (source not published); LAN-only mode: full; account required to print: no; third-party slicer sends directly: yes (dated 2026-09-06); filament restrictions: none; as of 2026-09-06; source src-qidi-us-plus5.


## Known issues

- `ki-bambu-p2s-chamber-heat-pla` (#1 P2S, #2 P2S) — annoyance · common · open as of 2026-09-06 · first reported 2026-02-25 · 2 independent sources.
- `ki-bambu-p2s-early-unit-qc` (#1 P2S, #2 P2S) — hardware-failure · isolated · unquantified as of 2026-09-06 · first reported 2025-11-24 · 2 independent sources.
- `ki-bambu-firmware-authorization` (#1 P2S, #2 P2S, #4 X2D) — policy · widespread · in force as of 2026-09-06 · first reported 2025-01-01 · 3 independent sources.
- `ki-bambu-handy-android17-crash` (#1 P2S, #2 P2S, #4 X2D) — annoyance · common · open as of 2026-09-06 on Bambu's own issue... · first reported 2025-12-18 · 5 independent sources.
- `ki-bambu-handy-no-lan-mode` (#1 P2S, #2 P2S, #4 X2D) — annoyance · widespread · open as of 2026-09-06 · first reported 2023-03-16 · 3 independent sources.
- `ki-bambu-support-slow-ticket-only` (#1 P2S, #2 P2S, #4 X2D) — policy · common · open as of 2026-09-06. · first reported 2023-10-03 · 4 independent sources.
- `ki-bambu-ams-2-pro-feed-grinding` (#1 P2S, #2 P2S, #4 X2D) — print-failure · common · open as of 2026-09-06 · first reported 2026-04-14 · 2 independent sources.
- `ki-qidi-q2-leadscrew-bed-tilt` (#3 Q2) — hardware-failure · isolated · Open at 2026-09-06 as a quality-control and... · first reported 2026 · 1 independent source.
- `ki-qidi-box-filament-path-friction` (#3 Q2, #5 Plus5) — print-failure · common · Largely mitigated by a V2 box revision that... · first reported 2025-11-07 · 8 independent sources.
- `ki-qidi-box-slow-swaps-purge` (#3 Q2, #5 Plus5) — annoyance · common · Open as of 2026-09-06. · first reported 2026-02-11 · 7 independent sources.
- `ki-qidi-orca-q2-multimaterial-jam` (#3 Q2) — print-failure · isolated · Open at 2026-09-06 · first reported 2026-05-02 · 1 independent source.
- `ki-qidi-firmware-source-lag` (#3 Q2, #5 Plus5) — policy · common · Open at 2026-09-06. · first reported 2026-07-03 · 4 independent sources.
- `ki-qidi-qidilink-cloud-client` (#3 Q2) — policy · isolated · Open at 2026-09-06 as an unverified community... · first reported 2024-10 · 1 independent source.
- `ki-qidi-q2-heat-creep-jams-closed-enclosure` (#3 Q2) — print-failure · common · Open at 2026-09-06 and unlikely to be fixed in... · first reported 2025-09-17 · 7 independent sources.
- `ki-qidi-q2-z-banding` (#3 Q2) — cosmetic · isolated · Open at 2026-09-06. · first reported 2025-12-16 · 1 independent source.
- `ki-qidi-q2-stock-profiles-untuned` (#3 Q2) — annoyance · isolated · Open at 2026-09-06 as far as this file can tell · first reported 2025-09-30 · 2 independent sources.
- `ki-qidi-extruder-tension-arm-deform` (#3 Q2) — hardware-failure · common · Open at 2026-09-06. · first reported 2025-02-07 · 3 independent sources.
- `ki-qidi-ai-detection-false-positives` (#3 Q2) — annoyance · common · Open at 2026-09-06. · first reported 2025-09-30 · 3 independent sources.
- `ki-qidi-link-app-poor` (#3 Q2, #5 Plus5) — annoyance · common · Open at 2026-09-06. · first reported 2025-09-30 · 4 independent sources.
- `ki-qidi-support-parts-yes-returns-no` (#3 Q2, #5 Plus5) — policy · common · Open at 2026-09-06 as a consistent pattern... · first reported 2025-09-04 · 5 independent sources.
- `ki-qidi-firmware-ota-only-and-stripped-userland` (#3 Q2) — policy · isolated · Open at 2026-09-06, and recorded with its... · first reported 2026-03-30 · 2 independent sources.
- `ki-qidi-cloud-security-disclosure-2024` (#3 Q2) — policy · isolated · Open as an unquantified risk at 2026-09-06. · first reported 2024-10-20 · 2 independent sources.
- `ki-bambu-x2d-aux-nozzle-limits` (#4 X2D) — annoyance · widespread · by design as of 2026-09-06 · first reported 2026-04-14 · 4 independent sources.
- `ki-bambu-x2d-ams-feeds-one-nozzle` (#4 X2D) — annoyance · widespread · by design as of 2026-09-06 · first reported 2026-04-14 · 3 independent sources.
- `ki-qidi-plus5-purge-volume` (#5 Plus5) — annoyance · isolated · Open at 2026-09-06. · first reported 2026-08-05 · 1 independent source.
- `ki-qidi-plus5-driver-temps-and-bed-flatness` (#5 Plus5) — print-failure · isolated · Open at 2026-09-06 and explicitly unresolved as... · first reported 2026-08-18 · 3 independent sources.


## Capability flags

| Configuration | pla_petg_ok | asa_ready | multi_color_ready | multi_material_ready | cf_gf_ready_now | cf_gf_ready_with_upgrade |
|---|---|---|---|---|---|---|
| Bambu Lab P2S + AMS 2 Pro + External Exhaust Fan Kit | yes | yes | yes | yes | yes | yes |
| Bambu Lab P2S + AMS 2 Pro | yes | yes | yes | yes | yes | yes |
| QIDI Tech Q2 + QIDI Box | yes | yes | yes | yes | yes | yes |
| Bambu Lab X2D + AMS 2 Pro | yes | yes | yes | yes | yes | yes |
| QIDI Tech Plus5 + QIDI Box | yes | yes | yes | yes | yes | yes |

- asa_ready for #1 P2S: asa_ready = true on the same T5 inference as the plain Combo (enclosed chamber + activated-carbon VOC/particulate filtration), with the exhaust kit...
- asa_ready for #2 P2S: asa_ready = true is a T5 inference from two manufacturer facts - the chamber is fully enclosed (plastic and glass) and the machine carries an...
- asa_ready for #3 Q2: asa_ready is a T5 inference and here it is a strong one: the Q2 is fully enclosed with a 65 C actively heated chamber and a 3-in-1 G3 + H12 HEPA +...
- asa_ready for #4 X2D: asa_ready = true is a stronger T5 inference than the P2S's: the chamber is enclosed AND actively heated to a thermocouple-verified 65 C (CNC Kitchen,...
- asa_ready for #5 Plus5: asa_ready is a T5 inference: fully enclosed, 65 C actively heated chamber, 3-in-1 G3 + H12 HEPA + activated-carbon filtration standard, and Tom's...
- cf_gf_ready_now and cf_gf_ready_with_upgrade are facts about the printer: whether hardened parts are fitted now, or can be bought. Whether the magazine will accept a fiber filament is separate, and it is `abs_gf_in_magazine`: #1 P2S no, #2 P2S no, #3 Q2 yes, #4 X2D no, #5 Plus5 yes.


## Data gaps

Every field flagged unverified on a top-5 configuration:

- #1 P2S · configuration field `shipping_usd` unverified. shipping_usd is recorded as 0 but flagged unverified: printers and AMS ship free in the 48 states,...
- #1 P2S · printer field `sale_history` unverified. No source states it; recorded rather than guessed.
- #1 P2S · printer field `chamber_temp_max_c` unverified. ...chamber temperature figure, so chamber_temp_max_c is left null rather than...
- #1 P2S · printer field `auto_bed_level` unverified. No source states it; recorded rather than guessed.
- #1 P2S · printer field `input_shaping` unverified. No source states it; recorded rather than guessed.
- #1 P2S · add-on AMS 2 Pro field `purge_waste` unverified. No source states it; recorded rather than guessed.
- #2 P2S · printer field `sale_history` unverified. No source states it; recorded rather than guessed.
- #2 P2S · printer field `chamber_temp_max_c` unverified. ...chamber temperature figure, so chamber_temp_max_c is left null rather than...
- #2 P2S · printer field `auto_bed_level` unverified. No source states it; recorded rather than guessed.
- #2 P2S · printer field `input_shaping` unverified. No source states it; recorded rather than guessed.
- #2 P2S · add-on AMS 2 Pro field `purge_waste` unverified. No source states it; recorded rather than guessed.
- #3 Q2 · printer field `sale_history` unverified. No source states it; recorded rather than guessed.
- #3 Q2 · printer field `nozzle_swap_effort` unverified. No source states it; recorded rather than guessed.
- #3 Q2 · printer field `hardened_extruder_addon_id` unverified. hardened_extruder_addon_id is null because the hardened-steel dual-drive direct extruder is...
- #3 Q2 · printer field `flow_calibration_auto` unverified. No source states it; recorded rather than guessed.
- #3 Q2 · printer field `lan_only_mode_detail` unverified. No source states it; recorded rather than guessed.
- #4 X2D · printer field `sale_history` unverified. No source states it; recorded rather than guessed.
- #4 X2D · add-on AMS 2 Pro field `purge_waste` unverified. No source states it; recorded rather than guessed.
- #5 Plus5 · printer field `sale_history` unverified. No source states it; recorded rather than guessed.
- #5 Plus5 · printer field `nozzle_swap_effort` unverified. No source states it; recorded rather than guessed.
- #5 Plus5 · printer field `hardened_extruder_addon_id` unverified. No source states it; recorded rather than guessed.
- #5 Plus5 · printer field `input_shaping_auto_calibrated` unverified. No source states it; recorded rather than guessed.
- #5 Plus5 · printer field `flow_calibration_auto` unverified. No source states it; recorded rather than guessed.
- #5 Plus5 · printer field `lan_only_mode_detail` unverified. No source states it; recorded rather than guessed.

The five lowest-confidence figures behind the top 5:

- #1 P2S, #2 P2S, #3 Q2, #4 X2D, #5 Plus5 · the asa_ready flag is a tier-5 inference from the enclosure and filtration specifications, not a manufacturer statement that the machine prints ASA, and not a test.
- #2 P2S, #3 Q2, #4 X2D, #5 Plus5 · Value within budget is scored from fewer than three sources at weight 15 of 100: sourced, but thinly.
- #1 P2S, #2 P2S, #4 X2D, #5 Plus5 · Practicalities for a shared home is scored from fewer than three sources at weight 5 of 100: sourced, but thinly.
- #3 Q2 · known issue `ki-qidi-q2-leadscrew-bed-tilt` (hardware-failure, isolated) rests on a single independent report.
- #3 Q2 · known issue `ki-qidi-orca-q2-multimaterial-jam` (print-failure, isolated) rests on a single independent report.


## Timing

- Prusa Research CORE One+ (Gen 2) INDX 8-Tool — $2,082.41. PRE-ORDER -> excluded outright.
- Prusa Research CORE One+ INDX 8-Tool kit — $1,804.63. PRE-ORDER -> excluded outright.
- Prusa Research CORE One L+ INDX 8-Tool — $2,767.60. PRE-ORDER -> excluded outright.
- Sovol M1D — $1,499.00. PRE-ORDER -> excluded outright; list $2,099.
- Positron (LDO Positron V3.2 kit) LDO Positron V3.2 kit (Fabreeko) — $569.99. pre-order $748.99 -> $569.99 shown.
- WonderMaker ZR / ZR Ultra / ZR Ultra-S (multi-head) — price not published. site says 'WonderMaker is on its way'.
- HeyGears (G1 series) G1X full-colour 3D + UV printer — $1,999.00. from $1,999 on Kickstarter.
- Yumi YUMI multicolour printer — price not published. Kickstarter; last update 2026-04-09; shipping updates via social.
- Makertech (ProForge 5) ProForge 5 toolchanger — price not published. UK; Kickstarter.
- TOP.E R1 5-axis — price not published. no ship date published.
- AtomForm Palette 300 (12-nozzle multi-material) — price not published. CES 2026; pre-sale delayed beyond Q2 2026.
- TinyMaker TinyMaker open-source mini — price not published. Indiegogo.
- Sale windows: 24 of 102 printers have any sale history captured, and none of them is in the top 10, whose brands are Bambu Lab, QIDI Tech. No sale window inside 90 days of 2026-09-06 is documented.
- Verdict on waiting, from the decision memo: No, and nothing here has changed that.


## Coverage summary

| Group | Count | Brands |
|---|---|---|
| fully captured | 24 | AOSEED, Afinia, Anycubic, BIQU / BigTreeTech, Bambu Lab, Comgrow, Creality, Elegoo, Entina, FLSUN, Flashforge, Geeetech, Kidoodle, Longer, LulzBot (FAME 3D), Peopoly, Positron (LDO Positron V3.2 kit), Prusa Research, QIDI, Rat Rig, Robo 3D, Snapmaker, Sovol, Toybox |
| partially captured | 17 | Anet, Artillery, Easythreed, FlyingBear, InfiMech, JGMaker (JGAurora), Kingroon, Monoprice, Phrozen, SainSmart (PrintyGo), SeeMeCNC, Tiertime (UP), Tronxy, UltiMaker (incl. MakerBot), Voron kit vendors (LDO, Formbot, Siboor, Fysetc), Voxelab (Flashforge sub-brand), Wanhao |
| no US availability | 4 | Blocks / Construct3D / Volumic / Hiprecy / Velleman / Z-Bolt / WEMAKE3D, CoLiDo, Cubicon, Sindoh |
| out of scope | 33 | Anker (AnkerMake / eufyMake), AtomForm, CMYKForge, Co Print, Defunct / no current product (Alfawise, Tevo, M3D, MagicMaker, Micromake, MTW, Folgertech, Adimlab, Fokoos), DeltaMaker, Dremel DigiLab, Eryone, Formlabs, Ginger Additive, HeyGears (G1 series), Inland (Micro Center house brand), Kodak, MakerGear, Makertech (ProForge 5), Markforged, Mingda, Modix, Open designs / self-source kits (Vzbot-Mellow, SecKit, RH3D E3NG, Rolohaun Rook, ZAV3D), Raise3D, Stratasys, Sunlu, TOP.E, TinyMaker, Two Trees, Unidentified OrcaSlicer profile vendors (Chuanying, OpenEYE, iQ, LH), Uniz, WonderMaker, XYZprinting, Yumi, Zortrax, re:3D (Gigabot), xTool |
| found by discovery, not in the manifest | 42 | AOSEED, Afinia, Anet, AtomForm, BIQU / BigTreeTech, Blocks / Construct3D / Volumic / Hiprecy / Velleman / Z-Bolt / WEMAKE3D, CMYKForge, Co Print, CoLiDo, Cubicon, Defunct / no current product (Alfawise, Tevo, M3D, MagicMaker, Micromake, MTW, Folgertech, Adimlab, Fokoos), DeltaMaker, Dremel DigiLab, Easythreed, Entina, Eryone, FlyingBear, Ginger Additive, HeyGears (G1 series), InfiMech, JGMaker (JGAurora), Kidoodle, Kodak, MakerGear, Makertech (ProForge 5), Modix, Monoprice, Open designs / self-source kits (Vzbot-Mellow, SecKit, RH3D E3NG, Rolohaun Rook, ZAV3D), Robo 3D, SainSmart (PrintyGo), SeeMeCNC, Sindoh, TOP.E, Tiertime (UP), TinyMaker, Toybox, Unidentified OrcaSlicer profile vendors (Chuanying, OpenEYE, iQ, LH), Wanhao, WonderMaker, XYZprinting, Yumi, re:3D (Gigabot) |


## Verdict

The decision memo's opening paragraph, verbatim:

> Buy the Bambu Lab P2S Combo with Bambu's own $19.99 External Exhaust Fan Kit. It is $817.05 all-in as of 2026-09-06: the $749 Combo, the kit, free shipping, $48.06 of Massachusetts sales tax at 6.25%, and nothing to buy later. Buy it because it is the machine here most likely to work every time you press print, and because your two bulk materials are the ones it is best at. It ranks first of 67 scored configurations and leaves $482.95 of the $1,300 budget in your pocket.

The verdict on the buyer's lean:

- "P2S with an AMS": correct, and now first. → **confirmed**
- "The X2D at about $100 more": still not supported. → **not supported**
- "The P1S is poor value": not supported, and it is now sixth rather than seventh. → **not supported**


## Glossary

- **3MF** (3D Manufacturing Format), said "say the letters". A newer model file format that can carry colors and settings as well as shape.
- **ABS** (acrylonitrile butadiene styrene), said "say the letters". The older cousin of ASA, with the same warping and fume behavior and less UV resistance.
- **ACE** (Anycubic Color Engine), said "say the letters". Anycubic's four-spool multi-color unit, sold as ACE Pro and ACE 2 Pro.
- **AGPL** (GNU Affero General Public License), said "say the letters". A stricter relative of the GPL.
- **AMS** (Automatic Material System), said "say the letters". Bambu Lab's name for the box that holds four filament spools and swaps between them so one printer...
- **API** (application programming interface), said "say the letters". A documented way for other software to talk to the printer, which is what makes home-automation...
- **ASA** (acrylonitrile styrene acrylate), said "say the letters". A tough, UV-resistant filament for parts that live outdoors or take impact.
- **CF** (carbon fiber), said "say the letters". Filament with chopped carbon fiber mixed in, for stiffer parts.
- **CFS** (Creality Filament System), said "say the letters". Creality's four-spool multi-color unit.
- **CoreXY**, said "core-X-Y". A motion design where two motors move the print head across a fixed plane while the bed drops.
- **FDM** (fused deposition modeling), said "say the letters". The common kind of 3D printing, where a nozzle melts plastic filament and draws the object one thin...
- **FFF** (fused filament fabrication), said "say the letters". The same process as FDM.
- **GF** (glass fiber), said "say the letters". The same idea as carbon fiber, using glass.
- **GPL** (GNU General Public License), said "say the letters". A license that requires whoever ships the software to publish its source code.
- **HEPA** (high-efficiency particulate air), said "HEP-uh". A filter grade that catches the fine particles a hot nozzle throws off.
- **IDEX** (independent dual extruder), said "say the letters". Two print heads that move separately, so a printer can use two materials or print two copies at...
- **IFS** (Intelligent Filament System), said "say the letters". Flashforge's built-in four-color feeder on the AD5X.
- **LAN** (local area network), said "say the letters". Your home network.
- **MMU** (Multi Material Unit), said "say the letters". Any add-on that feeds several filaments into a printer so it can change color or material mid-print.
- **MSRP** (manufacturer's suggested retail price), said "say the letters". The list price, which many of these machines never actually sell at.
- **PEI** (polyetherimide), said "say the letters". The textured coating on most modern print beds.
- **PETG** (polyethylene terephthalate glycol), said "say the letters". A tougher, slightly flexible filament that survives heat and impact better than PLA.
- **PLA** (polylactic acid), said "say the letters". The easiest filament to print.
- **PVA** (polyvinyl alcohol), said "say the letters". A filament that dissolves in water, used to print supports that wash away instead of being snapped...
- **RFID** (radio-frequency identification), said "say the letters". A chip in a filament spool that tells the printer what is loaded.
- **SKU** (stock keeping unit), said "say the letters". One specific thing a shop sells.
- **SSH** (secure shell), said "say the letters". A way to log into the printer's own computer and change things.
- **STL** (stereolithography file), said "say the letters". The oldest and most common 3D model file format.
- **T1** (evidence tier 1), said "say the letters". A manufacturer's own specification, manual or store page.
- **T2** (evidence tier 2), said "say the letters". An independent measured test: a teardown, a benchmark, or someone who ran the machine for weeks and...
- **T4** (evidence tier 4), said "say the letters". Community reports from forums and owner threads.
- **TPU** (thermoplastic polyurethane), said "say the letters". Rubbery filament for flexible parts.
- **VOC** (volatile organic compound), said "say the letters". The fumes given off by melting plastic.
- **dB** (decibels), said "say the letters". The unit of loudness.
- **Anycubic**, said "ENNY-cue-bik". China; warranty 12 months.
- **Bambu Lab**, said "BAM-boo lab". warranty 24 months.
- **Creality**, said "cree-AL-i-tee". China; warranty 12 months.
- **Elegoo**, said "ELL-uh-goo". China; warranty 12 months.
- **Flashforge**, said "FLASH-forj". China; warranty 12 months.
- **InfiMech / FlyingBear**, said "IN-fi-mek / FLY-ing-bair". China; warranty 12 months.
- **Phrozen**, said "FROH-zen". Taiwan; warranty 12 months.
- **Prusa Research**, said "PROO-sha ree-SURCH". Czech Republic; warranty 12 months.
- **QIDI Tech**, said "CHEE-dee tek". China; warranty 12 months.
- **Snapmaker**, said "SNAP-may-ker". China; warranty 12 months.
- **UltiMaker**, said "UL-ti-may-ker". warranty 12 months.
- The buyer's "the P2S" or "P2S + AMS2" is `Bambu Lab P2S + AMS 2 Pro`; the winner adds the exhaust kit and is `Bambu Lab P2S + AMS 2 Pro + External Exhaust Fan Kit`. His "X2D + AMS2" is `Bambu Lab X2D + AMS 2 Pro`.
- "AMS2" is his shorthand for the magazine that actually ships in those combos, which at 2026-09-06 is the AMS 2 Pro.
- `#1 P2S` and the like name a configuration by its Leaderboard rank and printer model.
- A capped score is a judgment whose evidence did not meet the bar. Every table here shows it at 3.0 of 10, which is the value the weighted score is built from.
- Respellings follow the manufacturer's own usage where one is published and are otherwise this study's reading of the name: a pronunciation aid, not a claim.