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Longer

Longer LK5 Pro 3 3D Printer 11.8x11.8x15.7in Large Printing Size FDM 3D Printer Fully Open Source Motherboard Upgrade TMC 2209 with Resume Printing 3D Printers 95% Pre-Assembled Ideal for Beginners

Based on 152 reviews
Condition: New
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$349.99

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Availability: 12 left in stock
Fulfilled by Amazon
Arrives Saturday, Oct 31
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At a glance

Condition
New
Model
LK5 Pro
Dimensions
20"D x 20"W x 15"H
Weight
28.2 lb
Color
Black
Material
Aluminum
Works with
Laptop

Features 7

  • Stable Triangular StructureAchieve superior stability with the LK5 Pro 3D printer's sturdy triangular structure. The reinforced inclined rods minimize errors from resonance, ensuring high precision and durability. Ideal for home DIY projects and school use, especially with FDM technology.
  • Maximum Build Size & Material CompatibilityUnlock boundless creativity with Longer LK5 Pro 3D printer, featuring a maximum build size of 11.8" x 11.8" x 15.7" (300*300*400mm). Enjoy a larger canvas for your 3D printing projects, providing more room for innovation. This printer is designed to be compatible with a variety of printing materials, ensuring it meets the diverse needs of your 3D printing endeavors.
  • 180mm/s Printing Speed & 0.1mm PrecisionImmerse yourself in the advanced features of the Longer LK5 Pro 3D printer. Equipped with powerful firmware, it achieves remarkable 180mm/s high-speed printingsurpassing industry standards. The X and Y-axis automatic calibration technology minimizes vibrations to the maximum extent, ensuring an impressive 0.1mm precision in your prints.
  • Filament Depletion Detection & Auto-Resume PrintingThe LK5 Pro 3D printer, with its upgraded 32-bit mainboard, ensures improved print quality. It features sensors for filament and power detection, intelligently pausing printing in case of depletion or unexpected power outage. Upon power restoration, it resumes printing from the last position, saving time and reducing material waste.

Description

FDM, or Fused Deposition Modeling, is a widely used 3D printing technology known for its versatility and proven track record. The Longer LK5 Pro 3D printer, utilizing FDM, opens up limitless possibilities — from crafting intricate models to producing functional prototypes. Explore creativity with Longer 3D printing. We're your dedicated companion, guiding you to choose the perfect printer and enhancing your experience with high-quality accessories. Our commitment: quality, affordability, user-friendliness, turning concepts into realities. Longer leads in 3D printing, offering solutions for everyone. Imagine easy, resource-friendly high-quality prints with our diverse lineup for hobbyists, educators, professionals, and businesses. Utilize a 1.75mm filament. Employ a 45° chamfer cut, then, subsequent to adjusting the extruder assembly, meticulously guide it manually through the PTFE tube to the apex of the nozzle. Intelligent sensors for materials and power facilitate automatic pausing in the event of outages or depletion, seamlessly resuming from the last print position. The LK5 PRO 3D printer is compatible with both 110V and 220V voltage. Before plugging in, simply locate the yellow cover on the side, peel it off, and switch the lever by hand. The installation of sensors enhances the performance and reliability of the 3D printer, enabling a more intelligent and efficient printing process. Regularly cleaning the nozzle of a 3D printer is a crucial step in maintaining print quality, preventing issues, and extending the lifespan of the equipment. Is this a good 3D printer for beginners? Yes, this machine arrives 90% pre-assembled. It features open-source firmware and benefits from substantial community support for assistance. Can this printer print small projects with a height of 45mm? Yes, the LK5 Pro 3D printer boasts a maximum build size of 11.8" x 11.8" x 15.7" (300x300x400mm), with the build size denoting the actual printed dimensions. How to turn off the printer? Just flip the switch? Need to clean the nozzle after each use? After printing, minimal cleaning is needed. Check the nozzle; if any plastic protrudes, gently wipe it. If the 3D print exceeds 72 hours, let the printer cool for 4 to 5 hours. The print head or 'EO' head will stop in one corner after completion. what is the connection method? You have the option to utilize an SD card or acquire a computer cord for connectivity. Downloading the G-code onto the SD card and selecting the desired 3D print is a more convenient approach. Can this printer be converted to use a triple color extruder? Everything is upgradable, including the mainboard, software, and more. LONGER 5W Laser Engraver LONGER 10W Laser Engraver LONGER 20W Laser Engraver Nano 6W Laser Engraver Nano 12W Laser Engraver

Specs 7

Brand Longer
Material Aluminum
Color Black
Product Dimensions 20"D x 20"W x 15"H
Item Weight 28.2 pounds
Manufacturer Longer
Item model number LK5 Pro

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Oct 31

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

Quality machine
Review Image by Dakota Stebbins
Review Image by Dakota Stebbins
I’ve waited purposefully to review this printer by Longer (lk5 pro). After nearly 300 build hours on it and tons of learning curves I can say it definitely has no issues printing. I’ve printed PLA, PETG, ABS and even the notorious TPU filaments through this and though there is some trial and error involved I can say it’s solid. Its stable heat range seems to max at about 250c with the bed able to stay stable at 90c after that it has problems and fails. I am unsure if putting an all metal extruder on with allow it to get hotter for those exotic filaments but as of now I have no need to check that. The build plate is pretty large too at 300D300W400H allowing those bigger and taller prints to fit. It comes pretty much together with just a little bit of build work involved by fairly simple, the hot bed plate is also fairly nice and seems to do a good job although I’d recommend the first print you do, be a scraper as the metal scraper provided can easily dig and gouge the plate if you’re not careful. It does seem to leave a bit of ghosting residue but most of the time a good wipe with 91% propylene alcohol does the trick. (Pro tip keep you bed warm when you do this) Now for the cons, the bed leveling is rough which is normal on most printers. Manually turning the nobs is barbaric in my opinion and with a machine that is a make it or break situation, literally. Prints turn bad if you’re off .2mm sometimes depending on the detail even .1 makes a huge difference and to rely on a piece of paper and my own judgement is crazy in this day and age. Luckily you can buy a autolevel sensor called a BLTouch. However be warned the information on this is very difficult to navigate. You will need firmware from longer which you request via emailing them. Then you will need pronterface software to both enable and calibrate the leveler to your machine. That’s after you become an electrician and wire the sensor into your main board which can brick the printer if you are careful and ground the sensor incorrectly. And there is a dozen main board designs so you have to be careful not to read the wrong schematic as well. I will say the customer service is top of the line though, and helped me through all of my troubles so don’t turn away or get frustrated if something doesn’t go how you wanted it too. They will help you along the way and are very friendly in doing so. In closing it’s a great beginner printer at a good cost point and is highly upgradable as well, for the price you’re getting such a good. Buy an enclosure for it!!! I cannot stress it enough these plastics thrive in them and it makes such a better quality print. Hope all this helps and have fun! ... show more
Reviewed in the United States on October 14, 2024 by Dakota Stebbins
Buy something better
Avoid this printer at all cost. This is my first 3d printer and I'm sending it back. First couple weeks, it seemed like it printed great. Now I have nothing but issues. Clogs, spaghetti, stopping mid print even though there's plenty of filament, a constant need to level. There's a reason this thing is cheap. ... show more
Reviewed in the United States on December 31, 2025 by melissa haarman
read the review and decide for yourself, its a good printer
ok when you buy this do not use the paper quick start guys it is useless, take the time and play the videos that come with with it, they are much better, not complete but better, also I had to buy more screws as it was short several, not big deal they are cheap but you guys putting these kits together really need to be sure you give us all the screws we need to do the job. also bus a few 4m nuts they slip inside the track as they only give you 2 clamps and you meed more. Also if you are not good at building things with poor instructions this may not be for you but all that being said. After I got it together, this really is a nice printer and prints really well. My only complaint with that is the glass heat plate does not release the part well. I found if I can put a little space in a cornet that stands off from the bet on my part the thickness of the scraper it makes it easier to force the part to loosen up. Dont get mad a prt or force it you will break the glass and have to buy a new one, just let it cool way down and work with the scraper. At any rate the printer itself is really good, the glass service is not a good idea but I have other ideas to handle that like perhaps a flexible plate from another printer and different clips to hold it might work. All in all this is a very good printer in spite of the problems and given the problems are easy to fix well worth the money ... show more
Reviewed in the United States on August 31, 2026 by harry
VERY poor instructions!
Havent used it yet BUT the instructions were terrible! There is alot of pictures that are black and white and dark. Almost to dark to see. There are parts included that are not mentioned in the instructions! Instructions suck! As far as the printer is concerned, its well made and sturdy but as far as the function, I dont know yet. There is alot to assemble! So far, I do not recommend it. ... show more
Reviewed in the United States on March 28, 2026 by N9RLA
Size does matter.
Big, very big. Great for printing cosplay items and masks/helmets. The prints are very high quality, the layers are so thin you can't see or feel them. Great for functional parts, struggles with small figurines, mainly the hair and fingers. Heats up pretty fast, even in cold weather, the nozzle has no issues keeping the temp perfectly stable. Durable, I tried printing on a shirt and it got caught up in everything and made grinding noises, but the noise went away after a reset. Had a print warp and the nozzle knocked into it, knocking the entire bed several inches, yet the nozzle was fine and nothing got bent. Another print came loose and stuck to the nozzle while it ran, injecting PLA into the nozzle enclosure and covering everything, yet it was easily removed by pre-heating the nozzle and letting the PLA soften to remove it. I hate the leveling knobs, they are inconsistent and can change tension based on room temperature, but never move around during printing unless there is a big temperature change between springs. I've bought 2 so far, one had a warped bed, which sucks, but still works because the filament fills the gaps in the first couple layers, what a pain to level though. ... show more
Reviewed in the United States on February 12, 2026 by havoc1991
Filament and nozzle malfunction
Review Image by Shavon S
Review Image by Shavon S
I had a great experience with Longer 3D's support team. They were incredibly responsive, knowledgeable, and patient in helping diagnose an issue where the filament was melting above the nozzle instead of feeding cleanly through it. They quickly explained the likely causes such as heat creep or improper cooling, and walked me through clear practical steps to fix it. Replacement parts were covered under the warranty of the printer Their expertise made a frustrating problem much easier to understand and resolve. Overall, their customer service is reliable, and very well-informed. I'd definitely recommend them to anyone needing help with their 3D printer. ... show more
Reviewed in the United States on March 28, 2026 by Shavon S
Not Bad for a Beginner
Review Image by Maresa
Review Image by Maresa
Review Image by Maresa
I received this 3D printer as a Christmas gift, not knowing ANYTHING about 3D printing. Not going to lie - it took me a few days to get a print that looked good. My biggest issue was to get the print to adhere to the plate, but once I learned about hairspray, I was able to print over 900 hours in about 6 months. Parts are easy to order, and easy to install. There is only I problem I have encounted with this printer, and it has to do with updating firmware...having a problem getting the Printer to communicate with the computer for updates. It does explain on website, but I have not been able to get it to work. Overall, great product/service for the price. ... show more
Reviewed in the United States on May 5, 2026 by Maresa
4months old and already broke and no support to exchange
I bought this printer June of this for Father’s Day. At first the the printer worked great and we had no issues with it. Now 4 months later it says the motherboard has issues we can’t use it anymore. I thought it came with a 1 year warranty but I can’t get in touch with anyone to make an exchange or get a new part for this and Amazon says my support period is over. So disappointing as my husband uses this to create things and it was never excessively used for the mother board to go out already after 4 months. ... show more
Reviewed in the United States on November 20, 2024 by Jenng
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