Longer LK5 Pro Large Open-Source 3D Printer Review: Specs, Pros and Cons
As an Amazon Associate we earn from qualifying purchases. Links on this page are affiliate links.
This longer lk5 pro 3 3d printer review covers a large-format FDM machine built for substantial projects. It features a 300x300x400mm build volume, giving you ample space for big parts. The unit prints at speeds up to 180mm/s while maintaining 0.1mm precision. You get a sturdy triangular frame and open-source firmware for customization. This setup targets users who need size and speed without complex assembly hurdles.
What stands out
- 11.8 x 11.8 x 15.7 inch build volume
- 180mm/s maximum print speed
- 0.1mm layer precision with auto-calibration
- Open-source firmware for G-code tweaks
- Silicon carbide glass bed for adhesion
Who it fits
Good fit for
You should consider this printer if you frequently print large objects that exceed standard 220mm beds. The 400mm Z-axis height is ideal for tall models. Beginners will appreciate the 90% pre-assembled design and automatic bed leveling. The open-source nature suits hobbyists who want to modify firmware or explore community-driven upgrades for their specific printing needs.
Who should skip it
You might want to look elsewhere if you need a fully enclosed chamber for printing high-temperature materials like ABS. The data does not mention an enclosure or heated chamber, which can cause warping for certain filaments. If you require absolute silence, note that it uses TMC2209 drivers, which are quiet but not silent. Users needing automatic material loading systems should also check other options.
Verdict: The Longer LK5 Pro offers a large build volume and fast speeds for an accessible price point. It is a solid choice for makers who prioritize size and speed over enclosed printing capabilities.
Key specs explained for LK5 Pro
Build Volume: 300*300*400mm
This build volume gives you a large printing area of 11.8 x 11.8 x 15.7 inches. You can create bigger single parts without needing to slice them into smaller pieces. This size is ideal for larger home DIY projects or school assignments that require substantial dimensions. It offers more room for innovation compared to smaller desktop printers.
Print Speed: 180mm/s
The printer moves at up to 180mm/s, which is faster than many standard industry machines. You get your prints done in less time, making the workflow more efficient for daily tasks. This speed helps you produce multiple prototypes or functional parts quickly. It is a practical choice if you value time savings alongside your printing quality and consistency.
Printing Technology: FDM
Fused Deposition Modeling uses heated plastic filament to build objects layer by layer. This is the most common and accessible 3D printing method for beginners. You get reliable results with widely available materials like PLA and ABS. It is a straightforward technology that allows for easy troubleshooting and maintenance compared to more complex resin or sintering systems.
Precision: 0.1mm
The machine maintains a precision of 0.1mm through automatic calibration on the X and Y axes. This minimizes vibrations and ensures consistent layer adhesion for smoother surfaces. You get detailed prints with fewer visible artifacts or misalignments. This level of accuracy is suitable for both functional mechanical parts and detailed hobbyist models that require tight tolerances.
Design and Build Overview
According to the listing, the Longer LK5 Pro uses a sturdy triangular structure with reinforced inclined rods. This design choice minimizes resonance errors, which helps you maintain high precision during long prints. The frame is finished in black, giving it a standard industrial look that fits well in most home or school workshops. You get a machine that prioritizes structural integrity over flashy aesthetics. The unit measures approximately 20 inches in width and length, with a height of 15 inches. This footprint requires a dedicated space on your workbench or floor. The large dimensions accommodate the substantial build volume, ensuring the mechanical components have enough room to operate without interference. You will need to plan your workspace layout around these external measurements to ensure safe operation and easy access to the print area.
The build platform is a silicon carbide lattice glass surface. This material provides uniform temperature distribution across the bed, which improves adhesion and prevents warping for larger parts. A Teflon tube ensures smooth filament flow, while upgraded dual fans cool the extrusion quickly. These components work together to support the printer’s 180mm/s speed and 0.1mm precision claims. The machine is 90% pre-assembled, which simplifies the initial setup process for beginners. You spend less time on mechanical assembly and more time on slicing and printing. The open-source firmware allows you to customize settings, appealing to users who want to tweak their machine’s behavior. This build approach targets beginners who need reliability but also want the flexibility to learn and modify their equipment over time.
Setup And Daily Operation
The Longer LK5 Pro arrives 90% pre-assembled, which simplifies the initial setup process for you. This high level of pre-assembly makes the machine suitable for beginners who want to start printing without spending hours on mechanical construction. The unit requires minimal effort to get running, allowing you to focus on your first prints quickly.
In terms of daily operation, the printer relies on an upgraded 32-bit mainboard to manage its functions. This hardware supports filament depletion detection and power loss recovery. If the filament runs out or the power cuts unexpectedly, the machine pauses intelligently. Once the issue is resolved and power is restored, it resumes printing from the last saved position. This feature helps you save time and reduces material waste during long jobs.
For material handling, the system uses a Teflon tube to ensure smooth filament flow into the hotend. Dual fans provide swift cooling for the extruded filament, which contributes to better layer adhesion and print quality. The silicon carbide lattice glass platform offers a uniform temperature surface, helping to prevent distortion and ensuring strong first-layer adhesion.
The printer also features an ultra-quiet TMC2209 driver, which reduces noise during axis movement. This makes it a quieter option for home or school environments. Additionally, the open-source firmware allows you to customize settings via G-code modifications. You can join the community to explore advanced techniques and tweak the machine’s behavior to suit your specific needs.
Things to Consider Before Buying
Owning this larger FDM printer means you need adequate workspace. The listed dimensions are roughly 20 by 20 by 15 inches. Ensure your desk or stand can support this footprint. You should also verify filament compatibility with your specific materials, as the listing notes broad support but does not list every brand. Upkeep involves maintaining the silicon carbide glass bed and checking the Teflon tube for smooth flow. Since the firmware is open-source, you may need to install custom drivers or software on your computer for advanced G-code modifications. This machine sits alongside other large-format options by offering significant build volume and high speed. However, its open-source nature requires more technical interest than plug-and-play competitors. You must be comfortable with potential firmware tweaks. The pre-assembly helps, but understanding the triangular structure’s maintenance is key. This printer suits those who want size and speed without sacrificing customization. It fits well if you prioritize print area and community-driven software over simple, closed-box operation. Consider your willingness to manage these technical aspects before adding it to your tools.
Check before you buy
- Verify your workspace fits the 20 by 20 inch footprint.
- Confirm filament types match your specific printing needs.
- Check if you are comfortable with open-source firmware tweaks.
- Ensure your computer supports the required G-code software.
The product at a glance
Longer LK5 Pro Large Open-Source 3D Printer
Best for: Large format printing and firmware customization
- Build Volume
- 300*300*400mm
- Print Speed
- 180mm/s
- Printing Technology
- FDM
- Features
- Resume Printing, Open Source
- Target Audience
- Beginners
- Color
- Black
View on Amazon: Longer LK5 Pro Large Open-Source 3D Printer Affiliate link
The Longer LK5 Pro is an FDM 3D printer with a 300x300x400mm build volume and 180mm/s print speed. It features a triangular structure for stability and open-source firmware for customization. The unit includes filament depletion detection and auto-resume capabilities. It is designed for beginners and DIY projects, offering a large canvas for innovation with 90% pre-assembly.
Pros
- 300x300x400mm large build volume
- 180mm/s high print speed
- Open-source firmware for G-code modification
- Filament depletion and power outage detection
Cons
- No mention of Wi-Fi or network connectivity
- No mention of touchscreen or LCD display
- No mention of direct drive extruder
Good fit if
- You need a large build volume for big projects
- You want to customize firmware settings
- You prefer pre-assembled units for easier setup
Skip if
- You require wireless remote monitoring
- You need a touchscreen interface
- You prefer a compact desktop footprint
Verdict: Longer LK5 Pro Large 3D Printer offers a spacious build area and open-source flexibility for makers who prioritize size and customization over built-in smart features.
Specifications side by side
| Spec | Longer LK5 Pro Large Open-Source 3D Printer |
|---|---|
| Build Volume | 300*300*400mm |
| Print Speed | 180mm/s |
| Printing Technology | FDM |
| Features | Resume Printing, Open Source |
| Target Audience | Beginners |
| Color | Black |
| Dimensions | 20 × 20 × 15 inches |
| Size | Longer-LK5 Pro |
| Model | LK5 Pro |
Frequently asked questions
Is the Longer LK5 Pro suitable for beginners?
Yes, the manufacturer lists this printer as targeting beginners. It arrives 90% pre-assembled, which simplifies the initial setup process. This high level of pre-assembly allows new users to start printing without spending hours on mechanical construction or complex assembly tasks.
What printing technology does the LK5 Pro use?
The Longer LK5 Pro uses FDM (Fused Deposition Modeling) technology. This method extrudes thermoplastic filament layer by layer to create objects. It is a reliable and widely supported technology for creating durable parts with good dimensional accuracy.
Can I customize the firmware on this machine?
Yes, the printer features open-source capabilities. This allows you to modify the firmware to suit your specific needs or experiment with advanced settings. It offers flexibility for makers who prioritize customization over out-of-the-box smart features.
Does the printer support resume printing after power loss?
Yes, the Longer LK5 Pro includes a resume printing feature. If power is interrupted, the machine can detect the last printed layer and continue from that point. This saves time and material by preventing the need to restart large jobs.
What is the physical size of the LK5 Pro?
The unit measures approximately 20 inches in width, 20 inches in length, and 15 inches in height. You should ensure your workspace can accommodate this footprint. The listed dimensions indicate a substantial machine that requires adequate desk or stand support.
What color is the Longer LK5 Pro frame?
The printer frame is finished in black. This color choice gives the unit a professional and uniform appearance. The sturdy triangular structure with reinforced inclined rods is also coated in this black finish for a consistent look.