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LGT Longer LK4 3D Printer, Filament Printer with Resume Printing, 2.8" Full Color Touch Screen, Built-in Saftly Power Supply 220x220x250mm

    • Based on 48 reviews
Condition: New
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$439.00 Why this price?
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Availability: In Stock.
Fulfilled by IPAtrading
Arrives Nov 30 – Dec 4
Order within 5 hours and 5 minutes
Available payment plans shown during checkout

Features

  • Resume Print Function: The LK4 can resume printing from the last recorded extruder position after suffering unexpected power outages or change the filament.
  • Built-in Safe Power Supply: This 3d printer is hidden designed, power supply placed under the flatbed to ensure users' safety and increase printing stability.
  • Metal Extruder Kit: LK4 adopts Longer metal extruder which has better stronger pressure to pushing filament into printer nozzle, improving the printer's performance.
  • Easy and Qucik Assembly: The simplifies assembly. The complicated parts such as cantilever, gantry, and nozzle have been assembled before leaving the factory. 90% of the assembly process is completed in advance. It saves 50% of the assembly time compared to other printers, and ensure better printing quality.
  • Technical Support: The Longer provide one year after-sale service for printer and lifetime technical assistance and 24H response. There also has a growing user community to sharing their successes and trials on Facebook, Reddit, and Youtube, which very helpful to beginners even seasoned users.

Description

Product Parameter: Equipment Model: LK4Printing Technology: FDMExtruder: SingleBuild Size: 220220250mmPrinting Temperature: 190-250℃Printing Speed: <180mm/s (Suggested 60-80mm/s)Filament Detctor: YesHeated Bed: YesResume Printing: YesSlice Software: Cura, Reptier-HostFile Format: G-Code, STLConnection: TF Card or USB CableInput Voltage: 100-120V AC 7A, 200-240V AC 3.5A, 50-60HzOutput Voltage: DC 24V 15APower: 280WMaterial: 1.75mm PLA, ABS, Wood, etcWorking Temperature: 20℃ - 40℃Relative Humidity: 30%-60% Easy & Fast Assemble 90% Pre-assembled to saves your time to enjoy the printing and creation Full Colorful Touch Screen 2.8" Colorful Screen to make friendly operation Resume Printing Function Easily continue printing from power failure or pause, saves time and filament. Safety Power Supply Built-in high quality power supply design to make more safety and stability Read more


Package Dimensions ‏ : ‎ 20 x 18.9 x 8 inches; 18.96 Pounds


Date First Available ‏ : ‎ August 24, 2020


Manufacturer ‏ : ‎ LGT


Best Sellers Rank: #210,628 in Industrial & Scientific (See Top 100 in Industrial & Scientific) #586 in 3D Printers


#586 in 3D Printers:


Customer Reviews: 4.3 out of 5 stars 48 ratings


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Nov 30 – Dec 4

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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Leasing options through Acima may also be available during checkout.

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Top Amazon Reviews

    • A good “base” to upgrade
This was my second 3D printer “project”. I have an Original Prussia MK3S+ with the MMU2 that I built from the kit, so I have a fair amount of experience with assembling and tuning 3D printers. The out of box assembly on this kit took about 20 minutes, and baring a bad power connector went without a hitch. The plug on the base of my unit had a bad connection between the fuse and the negative prong. I had to replace the power port right out of the box, but it was a $5 part on over-night from Amazon. The user interface is very basic, but in a good way. It’s a Color touch screen with very straight forward options and commands. Octoprint compatible without any special modifications. The levelling menu is a nice touch so you don’t have to manually move the X/Y axises to level each corner/Center. I found that I needed to level the bed after *EVERY* print (solution below). If you’re using Cura- just use the Alfawise U30 profile, as this is carbon copy the exact same machine. I made a series of upgrades to mine- mostly around trying to avoid manually levelling the bed every print. The product page lists that it’s compatible with ABL sensors, such as BL Touch, or the generic and (terrible) knock off 3D Touch. I had to message support to get the instructions for installing the BL Touch probe, and they sent me a YouTube Link that was very easy to follow. There is a firmware change involved (Base Merlin) and the touch screen will be inverted- which can be changed in the configuration. I spent 2+ weeks trying to get a print to even get past the first layer with ABL. I finally gave up, and reverted to the base firmware and unplugged the ABL. The problem I ran into was that the Z-offset in configuration was correct, but when printing I kept having prints dig the nozzle into the bed. Because of the ABL mess, I had to replace the build surface. I elected to go with a magnetic PEI steel sheet setup (much like the MK3S+). To remove the stock build tack, preheat the bed to 100°C and use the scrapper to remove the sheet and as much glue as you can. Follow up (AFTER IT COOLS DOWN!) with 99% ISP Alcohol to remove the residue. I found that the magnetic spring steel PEI setup (also purchased on Amazon for ~$30) was a lot better than trying to use the ABL. I haven’t had to level my bed after 20+ prints when using the spring steel plate. I believe this to be because the plate just pulls off the printer- so you’re not exerting force on the bed itself trying to get prints off. Skip the ABL and just go for a decent 2-part magnetic build plate. Upgrades: - Stepper Smoothers: $20. NOT at all worth it, made barely no difference in electric whine, but there was a MINOR improvement in print quality. - BL Touch Auto Bed Levelling Kit: ~$60. Not successful for me, though I’m sure there’s a way to get it fixed in the firmware. I removed mine. The firmware provided by support was last updated 2+ years ago. I may revisit this when I’m bored and looking for something to tinker with. - Magnetic bed kit: ~ $30. WORTH IT! Magnetic base and removable spring steel PEI sheet make levelling the bed on stock firmware a rare occurrence. - Speaker Isolation Feet: I had extra half-dome 0.75” silicone isolation feet meant to be used on speakers to stop them from resonating into the floor or shelf. I wanted to quiet this printer down, so I took a chance and threw 4 on this printer (one per corner) and it made a HUGE difference. Other general tips: - Cover the electrical contacts on the bed underside. They are 100% exposed, and will short if anything conductive touches them. I used high-temp rated (very important- read the packaging) electrical tape. - Check the Longer website for firmware updates. - My hot end reads a few degrees hot, so I had to adjust my slicer settings to drop them down about 5°. - Loading and Unloading filament takes *forever* using the touch screen. I used the extruder jog command in OctoPrint to speed the process up by about 10 minutes. I did about 500mm jog after preheating to load/unload. - This uses the standard e3D V6 (not V5, not V7, V6!) nozzles. Use a spanner wrench to hold the hot end. Never skimp on nozzles, sure there are $10 for a dozen options, but you get what you pay for. Cheap nozzles will eventually break off inside your hot end. Overall, for an exceptionally well priced printer, this is a great printer for someone who wants to make a few upgrades to get a great 3D printer. ... show more
Reviewed in the United States on March 4, 2021 by ktsharples
    • Alfawise U30 clone that beats the real deal
Review Image by Touji Urashima
Printer was easy to put together and level. was up and running in around half an hour. Prints come out at good quality with stock parts. Comes with touch screen, power resume and best of all filament detection Downside is mine did not come with a glass print bed, rather the aluminum heating bed was now coated for prints. The coating adheres a little too good as I've broken prints trying. To get them off the bed. Still prints well at high speeds and can recommend this printer to anyone looking to start 3d printing but on a budget ... show more
Reviewed in the United States on February 5, 2021 by Touji Urashima
    • Buena impresora, buen precio
Your browser does not support HTML5 video. La impresora llego muy bien empacada, con todas sus partes en buen estado, el instructivo para armar no es muy claro pero el video de longer para el armado si se entiende fácilmente, fácil armado, realice la primera impresión de uno de los modelos que vienen en la tarjeta mini sd, el modelo del pequeño zorro, el filamento que venia de muestra no alcanzó para terminar la figura. La impresión de muy buena calidad, la pantalla de control de la maquina funciona bien aunque a veces se debe pulsar fuerte para elegir algún icono. En términos generales buena impresora, buenos materiales fácil de operar. Excelente elección ... show more
Reviewed in the United States on March 12, 2021 by JAVIER V.
    • It has been troublesome but it works
Review Image by Hawk
It has been troublesome but it works. Its easy to level, ive had to replace the bowden tube within the first week.
Reviewed in the United States on October 30, 2020 by Hawk
    • Very nice first 3D printer.
Your browser does not support HTML5 video. This is my very 1st 3D printer ever. It was so easy to use right out of the box and build. I used a YouTube video to help me build it. It seems mine was put more together than the one in the video making it even easier to put together. I bought this to make pen blank molds and could not be happier. If I can put it together and get it running anyone can. Just remember the software for it is on the little SD card that comes with it. ... show more
Reviewed in the United States on July 15, 2021 by Kevin Haig
    • Perfect for a first-timer
It took some time to understand the broken translations in the directions, but its pretty easy. Leveling took some time for a first-timer like me. Prints come out clean. No issues to speak of.
Reviewed in the United States on February 28, 2021 by Kenneth M. Strickland
    • Screen stopped working after two weeks
Screen stopped working after two weeks of using it, company did not refund me my full refund and could not get a replacement , not happy at all with this outcome.
Reviewed in the United States on February 8, 2021 by Lyndsey
    • Great Bargain!
For the money this is a great 3D printer. Took a little adjusting to get all the settings right but does great medium to large prints. Small details not great on tiny figures but I kind of expected that from filament.
Reviewed in the United States on August 8, 2021 by Scott E Gorrell

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