QIDI Tech
QIDI Plus4
Discontinued enclosed CoreXY with a 305 x 305 x 280 mm build, 65 °C heated chamber and 370 °C hotend
Best for Nylon and polycarbonate partsBest for Large functional printsBest for Buyers comparing used or leftover stockBest for Klipper users
Overview
The QIDI Plus4 is an enclosed CoreXY printer with a 305 x 305 x 280 mm build volume, a 370 °C hotend, a 120 °C bed and active chamber heating up to 65 °C. QIDI has discontinued it and names the Plus5 as its successor.
What it is
The QIDI Plus4 is an enclosed CoreXY printer built for engineering filaments. Its official product page now states that the model has been discontinued and is no longer in production, and both store variants are marked sold out. QIDI points buyers to the QIDI Plus5 as its successor. This page remains useful for people comparing used units, remaining retail stock, or the Plus4 against newer models.
Key specs that matter
According to QIDI's official tech specs page:
- Build volume: 305 x 305 x 280 mm, larger than most 256 mm class enclosed printers.
- Motion: up to 600 mm/s toolhead speed and up to 20,000 mm/s² acceleration.
- Temperatures: up to 370 °C at the nozzle and 120 °C at the bed.
- Chamber: active chamber heating up to 65 °C using a PTC heater.
- Leveling: hands-free automatic leveling.
- Connectivity: 2.4 GHz Wi-Fi, Ethernet and USB, with 32 GB of onboard eMMC storage.
- Screen and camera: 5 inch 800 x 480 touchscreen and a camera with timelapse support.
- Materials: QIDI lists PLA, ABS, ASA, PETG, TPU, PA, PC and carbon or glass fiber reinforced filaments.
- Multi-color: compatible with the QIDI Box, which was sold as the Plus4 Combo.
Who it suits
The Plus4 was designed for buyers who print nylon, polycarbonate and fiber-filled filaments, where a hot chamber and a high-temperature hotend matter more than plug-and-play convenience. The 305 mm build plate also suits larger functional parts, enclosures and jigs. Because it uses Klipper-based firmware, it tends to appeal to users who are comfortable adjusting settings.
What to know before buying
The main issue is availability. QIDI no longer produces the Plus4, so a new unit would come from leftover reseller stock, and long-term spare parts depend on QIDI's support policy. Check that any seller offers warranty coverage before buying.
The official Plus4 product page contains some inconsistent figures (for example, 360 °C vs 370 °C nozzle and 55 °C vs 65 °C chamber in different sections). The dedicated tech specs page lists 370 °C and 65 °C, which are the values used here.
The successor, the QIDI Plus5, was listed at $749 for the base printer and $899 for the Combo on QIDI's store when checked. It increases the build volume to 320 x 320 x 300 mm and keeps the 370 °C nozzle and 65 °C chamber, so most new buyers should compare against it rather than hunting for a Plus4. The last price shown for the Plus4 on QIDI's store was $699 (regular $799), but it could not be ordered.
The Plus4 is large (505 x 487 x 550 mm) and heavy (27 kg net), so plan space accordingly.
If you already own a Plus4, the official tech specs page remains the best reference for settings and limits. When comparing it with other enclosed printers, focus on the chamber temperature and hotend limit rather than headline speed, since those two numbers decide which engineering filaments it can handle well.
Specifications
| Type | FDM |
|---|---|
| Price | Check current price |
| Build volume | 305×305×280 mm |
| Max speed | 600 mm/s |
| Multicolor | Yes (QIDI Box (optional, sold as Plus4 Combo)) |
| Enclosed | Yes |
| Auto bed leveling | Yes |
| Connectivity | Wi-Fi 2.4 GHz, Ethernet, USB |
| Noise | Not listed |
| Release year | 2024 |
Pros and cons
Pros
- Active chamber heating up to 65 °C supports warp-prone engineering filaments such as ABS, nylon and polycarbonate.
- A 370 °C hotend and 120 °C bed cover high-temperature and fiber-reinforced filaments listed by QIDI.
- The 305 x 305 x 280 mm build volume is larger than most enclosed desktop printers in its class.
- Published 600 mm/s speed and 20,000 mm/s² acceleration put it among fast CoreXY designs.
- Wi-Fi, Ethernet, USB and 32 GB onboard storage give flexible ways to send and store jobs.
Cons
- QIDI has discontinued the Plus4, so new units are hard to find and future parts support is uncertain.
- Multi-color printing needs the separate QIDI Box, which was only bundled in the more expensive Combo.
- At 27 kg and 505 x 487 x 550 mm it needs a sturdy table and plenty of space.
- The official product page lists conflicting nozzle and chamber temperatures, which can confuse buyers comparing specs.
- The successor Plus5 offers a larger build volume, so most new buyers will get more for a similar price.
Frequently asked questions
Is the QIDI Plus4 discontinued?
Yes. QIDI's product page states that the model has been discontinued and is no longer in production. It names the QIDI Plus5 as the successor.
What replaced the QIDI Plus4?
The QIDI Plus5, with a 320 x 320 x 300 mm build volume, a 370 °C nozzle and active chamber heating up to 65 °C. It was listed at $749 on QIDI's store when checked.
Can the Plus4 print nylon and polycarbonate?
QIDI lists PA, PC and fiber-reinforced filaments as compatible. The 370 °C hotend, 120 °C bed and 65 °C heated chamber are the features that make those materials practical.
Does the QIDI Plus4 support multi-color printing?
Yes, with the QIDI Box multi-color unit. QIDI sold it together with the printer as the Plus4 Combo.
Sources
Verdict
The Plus4 suits buyers who find one in remaining stock or used and need a hot chamber for engineering filaments. Most new buyers should look at its successor, the QIDI Plus5, which is in production and offers a larger build volume.
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