Compare BigTreeTech BIQU B1 vs TwoTrees Bluer vs Longer 3D LK4

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Model	BigTreeTech BIQU B1	TwoTrees Bluer	Longer 3D LK4
Printing Material	Filament	Filament	Filament
Estimated price	$269,00	$169,00	$200,00
Date of registration in the system
Fabricante	BigTreeTech	TwoTrees	Longer 3D
Release Year	2020	2019	2019
Print Volume [mm]	235x235x270	230x230x280	220x220x250
Printer Size [mm]	412x402x492	400x410x520	402x425x505
Weight [kg]	8,00	8	7,8
Power Loss Recovery	YES	YES	YES
Enclosed printer	NO	NO	NO
Bed Leveling	Manual	Manual	Manual com Assistência
Filament End Sensor	YES	YES	YES
Bed type	Heated	Heated	Heated
Power supply system	Bowden	Bowden	Bowden
Standard nozzle	0,4	0,4	0,4
Maximum Nozzle Temperature [°C]	250	260	250
Maximum Bed Temperature [°C]	100	100	100
Maximum printing speed [mm/s]	100	200	120
Filament holder	YES	YES	YES
Camera for supervision	NO	NO	NO
Recommended filaments	PLA, TPU, ABS, PETG	PLA, PETG	PLA, TPU, ABS, PETG
Recommended slicers	Cura, Simplify, Slic3r	Cura, Simplify, Slic3r	Cura, Simplify, Slic3r
Maximum Resolution [mm]	0,1	0,1	0,1
Kinematics	-	-	-
Extruder Type	-	-	-
Klipper Firmware	NO	NO	NO
Input Shaping	NO	NO	NO
Max Volumetric Flow [mm³/s]	-	-	-
Power Supply	24V / 360W	240W	12V / 360W
Connectivity	SD / USB	SD / USB	SD / USB
Release date	2020	2019	2019
Extra features	The BIQU B1 is an advanced 3D printer with a silent 32-bit BTT SKR V1.4 motherboard and ARM Cortex-M3 CPU, offering DIY interfaces (I2C, SPI, WiFi) and dual Z-axis. Its dual BTT B1 TFT35 V3.0 operating system allows real-time monitoring and multiple printing modes, including G-code visualization effects. It stands out for its BIQU SSS (Super Spring Steel), ensuring easy model adhesion and simplified removal, with the possibility of using it on both sides. It includes a filament sensor, automatically pausing printing in case of filament breakage. The multicolored RGB lights integrated into the hotend allow you to view the printing status even at night. Additional notes include the need for a BIQU-specific Type-C cable and extra interfaces for smart filament sensor and BL Touch.	The Bluer offers interesting features such as automatic bed leveling, a 3.5-inch color touchscreen for easy operation, and a filament sensor to prevent print failures. It has a robust metal extruder and a generous 230 x 230 x 280 mm print volume, suitable for a variety of projects. The community mentions improvements made by Two Trees based on feedback, increasing its reliability.	The Longer LK4 is a versatile 3D printer capable of working with a wide range of filaments, such as PLA, ABS, TPU, copper, wood and carbon fiber, thanks to its 0.4mm nozzle and heated bed up to 110°C. With a printing accuracy of between 0.05-0.4mm, it stands out for its solid construction with an aluminum frame, weighing around 7kg, and a robust 24V and 15A power supply. The kit includes an Allen key, a 7/10 key, a microSD card with USB adapter, a spatula, cable ties, a power cable, 5m of filament and a spare filament end sensor. Assembly is simplified, with around 90% of the equipment pre-assembled, and detailed instructions assist in the process. Special features include print recovery after power failure, a filament end sensor, a super-adhesive printing surface and an intuitive color touchscreen display. The design features smooth profiles for easy assembly, and the position of the filament holder optimizes the filament path to the extruder. The LK4 is a solid choice for 3D printing enthusiasts looking for quality and versatility.
Support for multiple colors and materials (AMS and CFS)	NO	NO	NO
Notes *
Cost-benefit	8 / 10	8 / 10	8 / 10
Hardware	1 / 10	1 / 10	1 / 10
Screen	.	.	.
Print volume	10 / 10	10 / 10	10 / 10
Performance	6 / 10	7 / 10	6 / 10

Conclusion

In comparing the BIQU B1, Bluer, and Longer LK4 3D printers, it's clear that each model has its own strengths and weaknesses, catering to different user preferences and budgets. The **BIQU B1** stands out with its advanced 32-bit motherboard and a dual Z-axis system, making it an excellent choice for users looking for higher precision and enhanced functionality. It features a larger print volume and additional capabilities like multicolored RGB lights, but these advanced features come at a higher price point. Its overall cost-to-benefit ratio is decent, making it suitable for hobbyists and semi-professionals who prioritize features over cost. The **Bluer** is the most affordable option and offers solid performance with automatic bed leveling and a robust construction, making it user-friendly for beginners. The improved reliability following community feedback suggests that it is a dependable choice for new users and casual enthusiasts. Its price combined with good performance metrics gives it a favorable cost-benefit ratio, making it an attractive entry-level option. In contrast, the **Longer LK4** offers versatility with the ability to print using various materials, which may appeal to more experienced users. While its print volume is slightly smaller than the BIQU B1, it provides a user-friendly assembly process and solid construction. Its robust features and performance ensure it is a capable machine for diverse projects, but it sits in the middle of the price range. Ultimately, the best choice depends on the user's budget and specific printing needs. For those who prioritize advanced features and are willing to invest more, the BIQU B1 is an excellent option. For beginners or those constrained by budget, the Bluer provides reliability and ease of use at a lower price point. The Longer LK4 serves as a balanced option for users looking for versatility in materials without compromising on performance, making it a solid choice for a variety of printing applications.