QIDI PLUS4 3D Printer, 65℃ Chamber Heating, 370°C Integrated Nozzle

I do not have a lot of 3D printing experience, but that lack of experience is part of the reason I believe this printer is so great. Going from an Anycubic Mega Pro that I endlessly tried to dial in and could not get to ever print anything at all, the Qidi Plus 4 is a breeze in comparison. I followed the instructions and put it together which includes attaching the door handle, putting on the glass top, removing the bed retaining blocks, cutting a few zip ties, attaching the screen and loading the filament spool. Overall, it is a 10–20 minute assembly with another 10–20 minute setup to dial it in. It goes through an input shaping procedure for calibration, then a bed leveling setup, and it was ready to go.I ran the little test boat print that comes pre-installed in the docs menu and it printed flawlessly in 22 minutes. I did notice it would not let me dial in the nozzle or bed temp specifically for the filament I was using for this print because it goes by the temps that are baked into the model file. This is not an issue, just something to be aware of because you need to make sure you set the temps for the filament you are going to be using when compiling your print file. Every issue I have had with printers in the past, the Qidi Plus 4 does automatically. Before printing it automatically cuts the filament, cleans the nozzle and sets itself up for a perfect print. Everything about this unit feels well made and high quality. The housing, frame, bed and internal parts all seem to be quality even down to the way the machine was packaged. It comes in a thick corrugated box packed with high quality foam and thick rubber corner covers on all edges.Most things you buy that require assembly come with the crappiest tools money can buy. This on the other hand actually comes with really nice tools. It includes a polished chrome vanadium wrench, a quality soft grip screwdriver with a hardened tip and heat treated ball-end Allen wrenches made of S2 steel. The whole package is impressive and I expect great things from it in the future. I can tell it is a printer for more experienced users because it does require more manual tuning as far as settings, but if you know what you are doing I am sure that is a plus and allows for higher quality prints. If you know nothing about 3D printing like I do, just do your research, spend some time learning the machine and it will work well. For the $600–$650 price tag, I think this is an extraordinary value and I am very happy with the quality of the machine.

I have previous experience with QIDI printers (X-CF Pro) and their tech support is very good. I started my 3D printing journey with a Taz Lulzbot Mini. So, I have a little knowledge and expectations for my 3d printers at this point.Looking to have the capability to print the newest hottest printing filament, have a heated chamber and gain speed and 3D print size/volume, the QIDI Plus 4 caught my eye.After hours of watching review videos and weighing the pros and cons, I ordered my first QIDI Plus 4. Fully aware that this is a newly released printer, a couple of issues had already been found by early reviewers and QIDI had either updated firmware or provided instructions to make corrections/fixes.My first Plus 4 arrived in about 10 days and I immediately setup the printer and one of the first things that you really must do is download the newest firmware onto the included USB drive, from the QIDITech website, and update the printer's firmware through the touch screen menu, selecting 'Set', 'Check for updates', 'Offline Update'.I have many successful prints and well over 100 hours on the first printer, with various filaments (ASA, ABS-GF, PA12-CF, PLA+). The only filament issue I had, was when unloading/loading between filaments, I selected the incorrect, too low of a temp, for the filament that the printer cut off and was about to extrude out of the drive gears. The lower temp caused the filament stub to hang in the nozzle and drive gears. Two small hex bolts hold the hot-end on the printer head. With the bolts and hot-end removed, it was easy to pull the stub of 'cold' filament down and out of the way and back to loading new filament and printing. Lesson learned ... be sure you select the correct temperature for the nozzle to be plenty hot enough to extrude out the remainder of the old filament stub.One of the first print jobs was the 'Poop Chute', to catch the purge filament that ejects out the back of the printer. Close to a 8 hour print job and I printed in Polymaker PLA Pro. Flawless print quality for this large-ish print. The longest print job so far was 24 and 1/2 hours of some large cable organizing trays. I printed them in PA12-CF, for strengh. Probably overkill, but might hang heavier items in the trays in the future? Again, impeccable print quality.So, with over 100 hours of pretty much trouble-free printing, I continued to watch for more experiences of other new owners. Mostly positive, with a few early adopter issues, as we can expect. I was having so much fun with the Plus 4, that I decided to buy a second one.The second printer came in only about a week. I already knew the new Plus 4 setup routine and took much less time getting up and going the second time around. After updating the firmware to the newest, I attempted to heat the print bed, before running auto bed leveling and input shaping. As soon I select the temp to heat the bead, the printer shut down. Powered the printer back on and repeated the process, with same shut down results.I had already seen some reviews and new owners, with this issue. Some printers are shipped with the power supply switched for 230V-240V operation, even with a sticker beside the power switch, that says, 'The input power of the machine is 100V-130V'. You cannot always believe what you read.Tipping the printer up on the side with the power switch, you can see the red slide switch on the power supply to switch it to 100V-130V operation. No shut downs after make the change. NOTE: My first Plus 4 never had to be switched, so you milage may vary. Just be aware that you might have to toggle the little switch.Just finished the 'Poop Chute' on the second Plus 4, again in just under 8 hours. This time I printed in ABS-GF and same amazing quality of print, just like the first Plus 4.I had looked closely at the Bambu Lab printers, especially with the multi color filament option (AMU). QIDI has announced their own AMU, for the Plus 4 and possibly other recent QIDI models, that should be out in first quarter 2025. I figured I could wait and get familiar with the Plus 4's capabilities and any quirks in the mean time. The speed, heated chamber, print size/volume and ability to print the most extreme heat filaments and already being familiar with QIDI, eased my decision making. Oh, and did I forget to mention price? Seems to be a very good value for the price. Of course time will tell.So, I am very happy, so far, with both printers. My previous interactions with QIDI tech support has always been positive. They have always been easy to work with, for me.

First off, I have thousands of hours of 3d printing under my belt. I run a professional electrical automation fabrication shop. These were purchased through my business account.I bought two machines. Both are defective. That is a 100% defective rate.Machine 1:Kept digging itself into the plate. There is no way to manually adjust z offset. The machine chooses what it wants. It was bending its own x and y axis rails during its own bed leveling process. I think I spent 4 hours running all of the calibrations on the machine multiple times. No dice, finally got a message from QIDI support who showed me some crazy procedure to do to fix it. I bought another with plans to just replace this one. That crazy procedure did fix the z offset. Then the machine just starts shutting itself off. It still does that but I need to try to get prints made for the shop. Now it keeps throwing a bed heater error.Machine 2:This one didn't have any z offset issues. Perfect first layer. It has horrible z banding though. This is so bad that the prints are unusable. Its literally a rough surface finish. I have probably printed 150 rolls of this PC filament without issue. My old XMAX 3 printed perfectly fine out of the box. This thing can't get one good print between two machines.So thats 0 for 2. I don't believe they are doing any sort of QC process when they are making these. When doing the tightening procedure QIDI support recomended I noted that all of the screw, accross the entire machine, have different levels of tightness. At our shop, we torque down every bolt and nut. None of these are torqued to spec. They are just assembled. There is also no way they are running a test print on the machine. If they did, they would find out about these issues straight off.I do not recommend you buy this machine. You can roll the dice and hope whoever assembled yours did a good job but I doubt you'll get lucky. Go on the forums and you'll see reports of screws just falling out of the machine randomly. With a decent QC program I'll bet it could be a good machine. The way it is now though, I'd stay far away from this printer.

This printer is amazing. I went from an old Creality CR-6 to this and it’s a huge difference. Nothing against the Creality (it was 5 years old) but this is like going from a toy. Incredibly fast. My only complaint is how long it takes for the bed and chamber to heat up, and all the time the printer spends preparing for a print. It’s typically about 10+ minutes before it actually starts the print job after leveling the bed and heating up, but probably improves the build and reduces mis-starts so worth it.

I was excited to have received the Qidi 4 Plus and tryout the potential of the machine from a business point if view. The machine arrived with a broken filament cutter bar, redering the swap filament feature useless until I receive a replacement extruder from the Qidi Tech. I am still waiting on the part and the experience from the Qidi Tech has been lackluster to say the least. The boat benchy still printed flawlessly, but the real test is using the whole build plate to print a multiple part bass enclosure I created. I did a test run of my build and loved the beautiful first layer it made, sliced with the Qidi software at default settings at .2mm height. Then I updated the firmware and everything went to hell. The nozzle kept rubbing after automatic level calibration and I couldn't figure out what exactly went wrong, as it was working correctly before without any z offset adjustment needed. To make a long story short to the solution, the Z offset now has to made +0 .1mm to keep the nozzle from scraping into the build plate and clearance for the print itself to avoid any rub. Not what I expected from a 850 dollar machine and a company who puts out firmware that just does not work right, needlessly increasing the frustration and confusion from its users. To further exacerbate the issue, the machine remembers the offset setting but will do an auto bed level before the print despite me turning the option off. This is turn 0s the bed plate but still shows the +.1mm offset sending the nozzle into the build plate or scraping the model itself. At first I thought it was an extrusion issue since I was using a cardboard spool of Rapid PlA + and it made hard rubbing sounds when attached to the the Qidi spool holder. So after manually cutting the filament, remember it's broken, and purging what was left through a benchy, the spool went into my dry Sunlu s4 dry box and there it will stay. It has been a frustrating experience, of which the Qidi Cool Plate, purchased to stop corner lift, has my finger tips tingling from burning on the build plate as I remove the first layer of support from every failed print. Fix the firmware and send my extruder already so I can get my project rolling.

I've owned the Qidi Plus 4 for 18 months now and have printed roll after roll of a wide variety of filaments with it. Its accuracy is comparable to printers costing hundreds of dollars more, and overall I've been extremely impressed with its performance.I recently moved the printer to another location where it operates in an ambient environment with temperatures in the upper 90s. Under those conditions, I experienced a failure of the print-head controller board, along with high temperatures on the X and Y motor controllers.This is where Qidi's customer support really impressed me. Thanks to their superb support—and especially Evelyn on the Plus 4 team—I was able to get the printer back up and running as soon as the replacement part arrived, which was very quickly.On the same day the replacement print-head controller arrived, Evelyn also sent me an upgraded SSR board. And she didn't just send the board. The package included the tools needed for the installation and even extra screws. That level of attention to detail and customer support is something you don't see very often.After 18 months of heavy use, including a wide range of engineering filaments, I continue to be very impressed with the Plus 4. It's an accurate, capable printer, and Qidi's willingness to stand behind their product and take care of their customers makes it an even better value.A special thanks to Evelyn and the Qidi Plus 4 support team!See the attached image of a Starlink Receiver mount printed in ASA carbon fiber at 270 C in a 95 F shop environment.

Far from new into 3d printing. I've had my Plus4 for about 6 months now, gone through probably 20-30 rolls of filament at this point printing everything from household items, car parts and accessories, to wargaming terrain and toys. I've primarily run PLA, but some ABS and some CF Nylon through it. Setup was fairly easy, as was updating firmware. I'm not new to Klipper either, and Qidi is running a much more recent version of Klipper than my previous XY machine from TwoTrees. I was very happy to see that.So far the only issues I have had was that my printer was one of the models affected by the older solid state relays for the chamber heater. I had not used the heater at that point and was advised by a friend to contact Qidi customer support. They sent me the upgrade kit quickly and with coherent and easy to follow instructions. I'm no stranger to working inside a printer, so it was a straight forward and easy swap to complete. I have since used the heated chamber, and other than taking a long time to heat up it works fine. I found the cooling fan for the mainboard to be a bit noisy and not as effective as I would like, so I swapped that out for a 120mm Noctua 24v industrial fan. I run that at 60% and it keeps my drivers and mainboard cool at a much lower volume. Otherwise I have had no major issues with this printer.My goal when purchasing this printer was to have the ease of use and speed of a bambulabs, with the open source and customizable nature of Klipper, and this printer has not disappointed. It has by far been the most reliable printer I have owned. It runs at the full rated speed without issue and the stock slicer profiles have all worked extremely well for me. I am anxiously awaiting the Qidi Box multi-filament upgrade. I would have liked it just a little bit better if it had a 320x320 like my SP5 turned Voron, and the Z height is slightly lacking, but this has not really been a limitation for me as of yet. Most print files out there are designed for a more "standard" 256x256 build platform, so the 305x305 has fit everything I've thrown at it.I've been extremely pleased with this printer so far, it's been a reliable tool which is what I was looking for.On final notes, the community, wiki, and github for this printer is quite active and helpful, and Qidi employees are active commentors and posters in those communities. Generally seen to be actively helping people problem solve, which I love to see.Excellent printer if you want speed and reliability without being locked into proprietary BS firmware and slicer software. It's reliable enough to be a solid and useful tool out of the box, but still gives you the freedom to modify and make it your own.

TLDR: Great printer with great customer servicePro'sBuilt like a tankGreat customer servicePrints tons of materials smooth and fastDoesn't need much maintenanceCon'sScreen is laggyNo UI button to delete prior printsGood luck adjusting Z-offset while printingI ran this printer for 3-4 months without doing much upkeep. Finally I had a clog of TPU because I forgot to change the temp settings. When I was fixing it I remembered I wanted to delete some prior prints. Well the onboard screen doesn't have an option delete it. I contacted customer support and they told me to delete it from the computer side. I guess I screwed that up and deleted the firmware. They ran me through several firmware reset/replacement steps with files. None of them ended up working so they sent me a free replacement motherboard with instructions. Whole thing took 30 minutes to set up and it fixed the issue.Overall it's a nice reliable unit, though I do have some qualms.I should be able to delete print history from the actual printer in case I want to sell it.The Z-offset on screen doesn't actually register your adjustments unless the print is actively printing, and it often delays. This causes problems when your z is 0.1 too close and the only way to correct it is to let the printer grind the nozzle against the metal plate for a few seconds while it registers. This also causes overcorrections. Say you are at 0.1 and go to adjust it by 0.1. It doesn't register, so you click it a few more times, well don't worry, it will all at once apply those corrections so now it jumps by 0.5.The screen is needlessly laggy when going through prior prints. It loads the thumbnail which for some reason takes 6 seconds per screen of 6 prints. Though you can disable thumbnails and reduce this to 2 seconds per page it should have the CPU to just be faster.These are minor issues once you get dialed in and printing. This beast will print for months with minimal upkeep.Special thanks to Evelyn at customer service for helping me out with the replacement motherboard and patience.

I read all of the reviews I could find on this 3D printer. Most of the issues I saw were people who think a 3D printer is like other equipment. I have owned only two 3D printers. This one and an original generation 3D printer. The good old Anet A8. I would have to say that this printer is plug and play. Coming from the Anet which required printing mods to make it work better. This printer is plug and play. You follow the instructions and it sets itself up. I am amazed at how easy it is to use. Very sturdy and accurate. I have not had any feeding issues like I have seen people say online. Just feed the filament in and the QIDI just takes it. I never had to take the head apart to align the filament with the unit. I have never had the nozzel drive it's self into the bed. Don't update anything, just turn it on and use it. It works great. No screws loose, no issues at all. The video attached is the first print straight out of the box just following the instructions. The only issue I have is my table I put the 3D printer on is not up for the G-forces this thing puts out. So I need a better table to put it on. Other than that this is such a fantastic printer. I have only used PLA but if it does a good with the other filaments as it did with PLA, then why would you buy anything else.

Gran impresora excelente calidad de impresión a alta velocidad ningun problema imprimiendo con ABSUn especial agradecimiento a Andy de soporte técnico de QIDI por la excelente atención

While there was a problem, thanks to Andy at Qidi, the problem was resolved quickly and all is now working well.Thank you Qidi and Andy.

Absolute lemon of a product. Bed leveling doesn't work. MCU over heats. Start gcode breaks the nozzle. PTFE tube rubbing and breaking away. Tool head board overheats. Klipper version is dirty. I wish I returned this before trying to fix anything because now I've just spent money on this hot garbage

Very happy with this purchase works very well