Review summaries: QIDI Max4 Combo 3D Printer, 390×390×340mm Build Volume, 65℃ Heated Chamber

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Solid PETG printing, sparse manual and tricky maintenance access

This is a first 3D printer. Packaging is meticulous, perhaps excessively so. Once set up, printing with PETG is solid, but getting started involves several pain points. Instructions are sparse; more drawings and a comprehensive manual would help. Only one engineering drawing of the print head appears in the Quick Start guide. A machine this complex needs a diagrammatic list of maintenance components with tasks and intervals. Accessing the nozzle wiper is tricky. The printer operates very well and is a tremendous asset; long-term durability remains to be seen.

Pros
  • + meticulous packaging
  • + solid PETG printing once set up
  • + operates very well
  • + tremendous asset
Cons
  • − sparse instructions
  • − needs more drawings and comprehensive manual
  • − no maintenance component list with intervals
  • − tricky nozzle wiper access
AI-assisted summary of a verified Amazon customer review. · August 17, 2026 · United States Read original on Amazon ↗
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Huge build volume, works great, filament magazine needs work

This printer is nearly the size of a kitchen oven and works reliably right out of the box, with no issues during daily use. The only drawback is the four-filament magazine on top, which has room for improvement: it lacks a dryer, and retraction can cause the spool to spin slower than the retraction, leading to tangles when printing multiple colors. It also does not automatically switch to another spool when one runs out. Despite these issues, it is considered a dream come true.

Pros
  • + large size
  • + works right out of the box
  • + reliable daily performance
Cons
  • − four-filament magazine needs improvement
  • − no filament dryer
  • − retraction causes tangles with multiple colors
  • − no automatic spool switching
AI-assisted summary of a verified Amazon customer review. · August 25, 2026 · United States Read original on Amazon ↗
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Easy setup, reliable printing, responsive support

This printer arrives well packed and undamaged. Setup is simple aside from its weight, with no manual leveling or clearance tests needed. It prints reliably without rafts, brims, or z-height adjustments, handling large prints and in-place models. One blockage occurred, likely from using old, moist wood PLA, and was fixed in about ten minutes. Support responds to questions the next day with personalized answers. It suits those who want to design and print rather than calibrate and tinker.

Pros
  • + Well-packed, undamaged delivery
  • + Easy setup with no manual leveling
  • + Reliable printing without rafts or z-height fiddling
  • + Responsive, personalized support
  • + Handles large prints and in-place models
Cons
  • − Heavy
  • − One blockage occurred, attributed to old moist filament
AI-assisted summary of a verified Amazon customer review. · August 13, 2026 · United States Read original on Amazon ↗