🖨 3D Printer Radar

Bambu Lab H2DvsQidi Tech Max4

💰Qidi Tech Max4 is $700 cheaper (67% less)
📐Qidi Tech Max4 has 42% more build volume
Qidi Tech Max4 tops out at 800 mm/s vs 600 mm/s
Cross-ecosystem comparison: These printers use different software ecosystems. Accessories, filament profiles, and community support are not interchangeable between brands. Consider the total ecosystem cost, not just the printer price.
Bambu Lab H2D
Buy/Wait:Superseded

This printer is no longer sold new. It has been replaced by the Bambu Lab H2S.

Best for: Professional makers and small studios who need dual-material printing for engineering parts with soluble supports — or true dual-color without purge waste.

Full details →
Qidi Tech Max4
Buy/Wait:Buy

First-generation product — recently released, still early days

Best for: Professional makers and small studios who need the maximum enclosed build volume in Qidi's lineup for large engineering parts, architectural models, or batch production — at a price point below the Bambu H2S.

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Bambu Lab H2DQidi Tech Max4
Pricing
Starting Price$1,749$1,049
Print Specs
TierProfessionalProfessional
MotionCoreXYCoreXY
Build Volume350 × 320 × 325 mm390 × 390 × 340 mm
Max Speed600 mm/s800 mm/s
Multicolor✅ 2 slots✅ 4 slots
Enclosure
Auto Calibration
Open Source
Upgrade Kit
Buy Timing
ReleasedNov 15, 2024Dec 1, 2025
Cycle length~210 days
Cycle adviceSupersededBuy
Deals adviceClearanceCaution
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Quick Winner

💰
Budget pick
Qidi Tech Max4
$1,049 starting
📐
Large prints
Qidi Tech Max4
390×390×340 mm
Fastest prints
Qidi Tech Max4
800 mm/s
🔓
Open ecosystem
Tie

Bottom Line

💰Qidi Tech Max4 saves you $700 — choose it if budget is your primary constraint

Materials

Bambu Lab H2D only
PETG-CFCarbon-fibre PETG — stiffer than PETG, easy to print
Both
PLAEasy to print, no enclosure needed — everyday parts
PETGTougher, slightly flexible, moisture-resistant
ABSHeat and impact resistant — needs enclosure
ASAUV-stable ABS alternative — outdoor parts, needs enclosure
TPUFlexible rubber-like — phone cases, gaskets, wheels
PANylon — strong and wear-resistant, needs dry storage
PA-CFCarbon-fibre nylon — very stiff, abrasive to standard nozzles
PCPolycarbonate — extremely tough, challenging to print
Qidi Tech Max4 only
PPS-CFExtreme temperature and chemical resistance

Why buy each?

Bambu Lab H2D

True dual extrusion — no filament switching

The H2D prints two materials simultaneously from two nozzles. This eliminates purge tower waste and enables true dual-material prints including PVA/PLA soluble support combinations.

Large build volume

350×320×325 mm gives more print area than the standard 256 mm Bambu models — suited for larger professional parts.

High-temp capable

The H2D supports a wide range of engineering filaments including PA-CF, PETG-CF, and PC with its enclosed chamber.

Qidi Tech Max4

390×390×340 mm — Qidi's largest build volume

The Max4 offers the largest build volume in Qidi's lineup — enabling large functional parts, architectural models, and production batch runs that exceed Plus4 capacity.

Closed-loop XY motion system

The Max4's closed-loop XY adds positional feedback for improved accuracy at high speeds — a differentiating feature at this price tier that reduces dimensional errors on large prints.

Active 65°C chamber heating at scale

Qidi's proven active chamber heating technology scaled to a 390×390 mm bed — critical for consistent ABS, ASA, PA-CF, and PPS-CF results across the full build plate.