FLSUN S1 Reviews: See Why 0 Shoppers Rated It 0 Stars!

FLSUN S1 3D Printer Review: A Robust Delta FDM Solution for Beginners

The FLSUN S1 emerges as a noteworthy entry in the consumer 3D printing category, primarily targeting beginners and hobbyists. Designed with a prebuilt assembly and a clear focus on prototyping and engineering applications, this device is equipped to deliver precise and consistent results within a sizable build volume. On paper, its combination of a delta frame, advanced extrusion system, and smart software features suggests a balanced machine that aims to bridge ease of use with functionality. But how well does it translate these specifications into a dependable desktop printing experience?

Detailed Specs & Features

The FLSUN S1 utilizes an internal power supply that operates across a broad 100-240 Volt range, ensuring compatibility in various regions. This power flexibility, combined with an efficient design that keeps idle power consumption to just 60 watts and peak consumption around 1300 watts, bodes well for energy-conscious users. According to its engineering data, the printer's build volume spans an impressive 12.6 x 12.6 x 16.93 inches, creating a total build space of 1730 cubic inches; ample for most consumer and prototype projects.

Its delta frame type offers smooth and precise movement, facilitated further by a linear rail motion system that enhances reliability and reduces vibrations. For ease of interaction, a 5-inch touchscreen with a resolution of 480x320p enables intuitive navigation through an advanced user interface. The single extruder employs a direct drive mechanism, capable of reaching up to 662°F, broadening filament compatibility to include ASA and accommodating those who prefer third-party materials. Its quick-swap nozzles and replaceable hotend add an extra layer of maintainability, supporting nozzle diameters ranging from 0.2mm to 0.8mm for varied application needs.

From the software front, the printer integrates well via USB connectivity and supports remote monitoring and cloud-based software, a boon for users wanting to track prints or operate remotely. Its capacity for automatic filament loading simplifies setup, though it is limited to one material at a time without multi-material printing capabilities.

Safety has not been overlooked; a CE certification underlines compliance with European safety standards, complemented by features such as an emergency stop button, overheat protection, and a trio of safety sensors to minimize risks during operation.

User Experience & Performance (Based on Specs)

Design & Build

In daily use, the FLSUN S1's sturdy delta frame and enclosed chassis work harmoniously to maintain a stable temperature environment, essential for reducing warping on larger prints. The closed enclosure also justifies the inclusion of a HEPA air filtration system that handles fumes and particles efficiently. Despite a sizable footprint, 21.65 inches wide, 23.43 inches deep, and soaring over 40 inches tall, the design remains practical for a home or small workshop. With a total weight of nearly 86 pounds, it promises durability without sacrificing desktop viability.

Performance

Performance-wise, the printer boasts an official max print speed of 1200 mm/s. Yet, real-world print speed typically aligns closer to an effective 300 mm/s, balancing speed and print quality. Its 100-micron layer resolution minimum indicates finely detailed output, enough to satisfy users targeting detailed prototypes or functional parts. Automated first-layer calibration and a PEI-coated spring steel build plate simplify adhesion and reduce print failures, supporting a 95% print success rate as per specifications.

The printer's bridging and overhang performance scores of 20 and 60, respectively, reflect moderate capability suited for complex geometries. However, users may find the upper limits less forgiving compared to professional-grade devices. Additionally, its support for continuous print jobs lasting up to 72 hours without requiring resets or recalibration further underscores reliability. Noise levels stand at reasonable levels for a desktop unit, with operating sound around 55dB, which should not disrupt a typical home or office environment excessively.

Camera & Display

The 5-inch touchscreen display is a highlight for user convenience, providing responsive and clear feedback through a 480x320 pixel resolution interface. Though it lacks a built-in camera, remote monitoring via cloud software compensates by enabling real-time print oversight, a valuable feature for those who cannot stay beside their printer continuously. Audio feedback is modest, with no specific enhancements designed for quiet operation but consistent with expectations for a printer of this class.

Extra Features

Among noteworthy extras, automatic filament runout detection and print recovery systems significantly minimize wasted material and time; two precious resources for consumers. The presence of power-loss recovery further enhances print resilience, a particularly welcome feature given the printer's 72-hour continuous print capacity. Moreover, tool-free maintenance and a robust self-diagnostics system align with the warranty-backed design philosophy, promoting an accessible and low-friction ownership experience.

Pros & Cons

Pros

• Robust build volume with precise 100-micron layer resolution
• Comprehensive safety features and CE certification
• Automatic filament loading and print recovery systems for user convenience
• Energy-efficient design with energy-saving mode

Cons

• Lack of multi-material printing and a single extruder limits complexity
• No built-in camera for direct print surveillance
• Printing speed is effective rate lower than the official maximum

Price & Value For Money

Priced at $899 at Amazon, the FLSUN S1 offers considerable value given its build volume, printer quality, and features like energy-saving mode and automated calibration. The 1-year warranty underpins confidence in product longevity. While some advanced professionals might find its limitations in multi-material and multi-extruder setups restrictive, beginners and intermediate users focused on reliable FDM printing will see the price well-aligned with its capabilities. This model suits users who prioritize ease of use, safety, and a stable printing environment above experimental multi-material capabilities.

Quick Take

In short, the FLSUN S1 impresses with its large build volume, accessible features, and energy-conscious design. If we look at the numbers alone, it offers a polished balance between user-friendly automation and solid technical specifications that should satisfy the majority of its target audience.

Closing Recommendation

The FLSUN S1 may be ideal for beginners seeking a reliable delta FDM printer with smart safety protocols and straightforward operation. It appears to perform best for hobbyists and small-scale prototypers who want a dependable printer without the complexity of multi-extruder setups. Its design choices and firmware integration help users achieve consistent, high-resolution prints, establishing a solid foundation for continued 3D printing exploration.

Verdict

Rating: Based on the specifications and overall feature set, we believe FLSUN S1 deserves 4.3 out of 5.

• Winner Feature => Large build volume paired with efficient safety and automation features.
• Needs Improvement => Limited to a single extruder and lacks direct camera monitoring.