QIDI X-Plus 3 Review: Best Enclosed Printer Under $500?

The QIDI X-Plus 3 is a printer that does not get enough attention, and I think that is partly because QIDI's marketing budget cannot compete with Bambu Lab or Creality. But after spending months with this machine, I am convinced it is one of the best enclosed printers you can buy under $500. If you need to print engineering materials like ABS, ASA, nylon, or even polycarbonate, the X-Plus 3 deserves serious consideration.

Why Enclosed Printing Matters

Before diving into the review, let me explain why an enclosed printer is worth paying extra for. Many popular 3D printing materials — ABS, ASA, nylon, polycarbonate — are sensitive to temperature changes during printing. When the ambient air cools the plastic too quickly, you get warping, layer splitting, and weak parts. An enclosed printer traps heat around the print, keeping temperatures consistent and enabling reliable results with these materials.

The X-Plus 3 takes this a step further with an actively heated chamber. Most enclosed printers just passively retain heat from the bed. QIDI includes a dedicated chamber heater that can push the enclosure temperature to 60°C or higher, which makes a real difference for nylon and PC. QIDI's official documentation details the chamber heating system and recommended temperatures for various materials.

Build and Design

The X-Plus 3 is an enclosed CoreXY printer with a 280 x 280 x 270mm build volume. The enclosure is a combination of sheet metal and insulated panels with a clear front door. It looks industrial and serious — this is not a toy printer.

The frame rigidity is excellent. QIDI has used thick aluminum plates for the internal structure, and everything feels solid when you push on it. The CoreXY motion system runs on quality linear rails for both X and Y, which is notable at this price point. Many competitors use linear rails on only one axis.

The build plate is a heated bed capable of 120°C, topped with a PEI-coated spring steel sheet. The magnetic attachment makes plate removal easy, and the PEI coating handles everything from PLA to nylon.

Assembly is minimal — the printer ships mostly assembled. You remove some shipping brackets, install the touchscreen, run the initial calibration, and you are printing. Total setup time was about 20 minutes for me, which is the fastest I have gotten from unboxing to first print on any enclosed printer.

Speed and Performance

QIDI rates the X-Plus 3 at 600mm/s max speed with 20,000mm/s² acceleration. The CoreXY design supports these numbers mechanically, and Klipper firmware (QIDI's fork) handles the motion planning.

Real-world speeds in my testing:

• Benchy (speed mode): 16 minutes
• Benchy (quality mode): 32 minutes
• ABS functional part (enclosed, 100mm/s): Clean results with no warping
• Large batch of small parts: Very efficient due to CoreXY speed consistency

The speed is competitive with the Bambu Lab P1S, which is the natural competitor. In my testing, the P1S is slightly faster on PLA prints, but the difference is small — maybe 10-15%. Where the X-Plus 3 catches up is on enclosed printing: since it is designed for high-temp materials, it does not need to compromise cooling or speed for ABS/ASA the way a P1S sometimes does.

Input shaping calibration runs automatically and tunes itself well. I did verify it with manual testing and the automatic values were close to optimal. Pressure advance is also pre-configured and handles speed changes smoothly.

Print Quality

Quality on the X-Plus 3 is excellent. This is not a qualified "good for the price" — it is genuinely excellent in absolute terms. Surface finish is smooth, layer consistency is tight, and dimensional accuracy averages 0.08mm on calibration cubes. I have printed precision-fit parts that assembled without sanding, which is my real-world quality benchmark.

The dual-fan part cooling system provides even airflow for PLA printing. For ABS and ASA, you reduce or disable cooling entirely and rely on the chamber heat for thermal management. The firmware profiles handle this automatically when you select the appropriate material preset.

Overhangs are clean to about 55 degrees. Bridges work well up to 70mm. The enclosed environment helps with bridge quality because there are no drafts disrupting the cooling process.

I printed a series of detailed miniatures at 0.1mm layer height and the results were comparable to what I get on my Prusa MK4S — sharp edges, clean overhangs, good detail preservation. The CoreXY stability contributes to this, as there is no bed-induced vibration to degrade fine features.

Material Testing: Where This Printer Shines

The X-Plus 3's party trick is material versatility, so I tested extensively:

PLA: Open the front door, run fans at 100%. Perfect results at up to 300mm/s. Polymaker PolyTerra PLA at 210°C. Quality is indistinguishable from open-frame printers.

PETG: Door closed, fans at 50%, 240°C nozzle, 80°C bed. Excellent layer adhesion and minimal stringing. Overture PETG prints reliably.

ABS: Door closed, chamber heat on, 245°C nozzle, 105°C bed. This is where the X-Plus 3 separates itself. Zero warping on parts up to 200mm wide. I printed large electronics enclosures in ABS that would have been impossible on an open-frame printer. Hatchbox ABS worked well.

ASA: Similar to ABS but at 250°C. Better UV resistance for outdoor parts. The chamber heat keeps the environment stable throughout. Polymaker PolyLite ASA is my go-to.

Nylon (PA6/PA12): Chamber heater set to maximum, 260°C nozzle, 100°C bed. The active chamber heating makes a noticeable difference here. Nylon is hygroscopic and temperature-sensitive, and the heated chamber reduces both warping and moisture-related defects. I used a Sunlu filament dryer to keep the filament dry during printing.

Polycarbonate: Achievable with the all-metal hot end at 280°C and chamber heat maxed. Results were acceptable but I would not call them easy — PC really wants chamber temps above 80°C, and the X-Plus 3 tops out around 60°C. You can print it, but warping on large parts is still a risk.

TPU: Works at reduced speeds (25mm/s) with the door open. The direct drive extruder handles flexible filaments without issues. NinjaTek Cheetah printed cleanly.

Software and Connectivity

QIDI provides their own slicer (QIDI Slicer, based on PrusaSlicer) with built-in profiles for all supported materials. The profiles are well-tuned and produce good results out of the box. For more control, OrcaSlicer has QIDI profiles that are maintained by the community.

Network connectivity works via Wi-Fi and Ethernet. The web interface provides file management, real-time monitoring, and configuration access. QIDI also has a mobile app for remote monitoring, though it is basic compared to competitors.

The 5-inch touchscreen is responsive and well-designed. Material presets are accessible directly from the screen, making filament changes quick. The interface includes preset buttons for different materials that automatically configure temperatures, fan speeds, and chamber heating — a small but appreciated convenience.

For model discovery, 3DSearch helps me find models that benefit from engineering materials, with AI settings that account for the X-Plus 3's enclosed chamber capabilities.

What I Love

Active chamber heating. No other printer under $500 offers this. It makes a real, measurable difference for ABS, ASA, and especially nylon. All3DP's guide to 3D printing materials explains why chamber temperature matters for different polymers.

Linear rails on both axes. The quality of motion is excellent. Prints at speed show minimal artifacts, and the rails require virtually no maintenance.

Material preset system. One tap on the touchscreen configures everything for a new material. This reduces errors and makes material switching fast.

Build quality. The X-Plus 3 feels like a $700-800 printer. The enclosure panels are thick, the frame is rigid, and the components are quality.

Quiet operation. With the enclosure closed, noise is very manageable. It is comparable to the FlashForge Adventurer 5M Pro and quieter than any open-frame speed printer.

What Needs Improvement

Brand recognition and support. QIDI is not as well-known in the West, and finding help can be harder. Their official support forum is active but smaller than Bambu or Prusa communities.

No multi-material system. There is no AMS equivalent for the X-Plus 3. Multi-color requires manual filament changes.

Camera not included. Remote monitoring requires purchasing a separate camera. At this price point, I would like to see a basic camera bundled.

Filament path design. The filament enters from the back of the enclosed chamber, and the PTFE path between the spool and extruder is longer than ideal. I experienced one clog that I traced to debris in this path. Regular cleaning helps.

Build volume could be bigger. 280mm cubed is good but not outstanding. The Bambu Lab P1S at 256mm cubed is comparable, but some competitors offer 300mm+.

Head-to-Head: QIDI X-Plus 3 vs Bambu Lab P1S

This is the comparison everyone wants, so let me be specific:

| Feature | QIDI X-Plus 3 | Bambu Lab P1S | |---------|---------------|---------------| | Price | ~$470 | ~$600 | | Build Volume | 280x280x270mm | 256x256x256mm | | Chamber Heating | Active heater (60°C) | Passive only (40-45°C) | | Speed | Very fast | Slightly faster | | Multi-Material | No | AMS compatible | | Software | Good (QIDI Slicer) | Excellent (Bambu Studio) | | Community | Growing | Large and active |

My recommendation: If you primarily print PLA/PETG and want multi-color, get the P1S with AMS. If you print ABS, ASA, nylon, or other engineering materials regularly, the X-Plus 3 is the better machine. The active chamber heating and larger build volume give it a meaningful advantage for high-temp materials.

Final Verdict

The QIDI X-Plus 3 is the best enclosed 3D printer under $500 for engineering material printing. The active chamber heating, dual linear rails, CoreXY speed, and build quality combine to create a machine that punches well above its price class. It does not have the brand recognition or software polish of Bambu Lab, but it delivers where it matters: reliable, high-quality prints in materials that open-frame printers struggle with.

Get the QIDI X-Plus 3 if you need material versatility, and use 3DSearch to discover models that leverage its enclosed printing capabilities.

Happy printing!