Courtesy of Raise3D - Nov 2025

Kinboshi: FFF + SLS, The World’s First Raise3D RMS220 SLS Printer Was Successfully Installed

17 Lt
Build Volume

75 W
Laser

5 Kg / day
Maximum Output

Kinboshi, is a Japanese manufacturing company established in August 1948. Kinboshi specializes in planning and sales of clothing, equipment, devices, and materials related to security and safety, as well as creating and providing healthy spaces through products for hospitals and elderly care facilities, and industrial equipment and facilities aimed at energy and resource conservation. Currently, the company has approximately 190 employees and a registered capital of 10 million yen. The President and CEO of Kinboshi is Mr. Kazufumi Ishii.

Kinboshi Inc. Headquarters

Kinboshi Inc. As early as 2021, Kinboshi introduced multiple FFF 3D printers-Raise3D Pro2. With its low cost, multi-material adaptability, and long-term stability, Pro2 quickly became a core tool for prototype verification and product development. The Raise3D Pro2 printer not only saved Kinboshi significant R&D time and costs but also helped it deploy three “R&D-production” sites in Japan, enabling same-day production and delivery for parts ordering. The advantages of FFF technology were fully demonstrated at this stage:

Kinboshi can use the Pro2 printer for rapid prototyping, shortening the development cycle: reducing the prototyping cycle to a few weeks or even a few days.
The Pro2 printer is compatible with a variety of 3D printing materials, which provides Kinboshi with a wider range of applications; for example, it supports a variety of engineering plastics such as ABS and PETG, as well as carbon fiber reinforced filaments, because of its extremely high hardness and stiffness.
The Pro2 printer requires low investment, and is easy to maintain, which is user-friendly.

Introduction

Kinboshi has completed a key upgrade from FFF to SLS in the process of of applying additive manufacturing technology. Over the past 8 years, Kinboshi has relied on the Raise3D Pro2 FFF printer to achieve rapid prototyping and small-batch trial production, significantly improving product design freedom and iteration efficiency.

In October 2025, Kinboshi became Raise3D’s first overseas customer to successfully install the RMS220 SLS 3D printer. From then on, Kinboshi was able to better integrate FFF and SLS 3D printing technologies, enabling faster and more flexible product development.

Key personnell with the RMS220 Printer and Cleaning Station

Key personnell with the RMS220 Printer and Cleaning Station

Limitations of FFF and SLS technologies

However, FFF technology still has significant limitations. For example, the interlayer bonding force in the Z-axis direction is weak, making the printed parts prone to cracking under vertical stress; the support structure is difficult to remove, limiting design freedom; and the model lacks sufficient detail accuracy. These problems are particularly prominent in final products involving pressure, load, or long-term operation. These are issues that cannot be avoided when using FFF technology.

To compensate for the shortcomings of FFF technology, Kinboshi had long been using powder bed fusion (PBF) printers from other brands. Mr. Hiroshi Iida, Director of Maebashi Office / Development Department Manager, commented, ” Although powder printers are very robust and durable, they are not suitable for small-volume production due to the cost required for each molding cycle.”
Cable Mounting examples

Swapping the RMS220 Build Unit

Seeking the Best Cost-Effectiveness – The Introduction of the RMS220

The company already worked with Raise3D Pro2 FFF printers, which were suitable for fit, size, and shape checks, but these lacked the capability for functional testing. To address this, HellermannTyton sought out a resin printing solution that could reliably produce strong, flexible parts with a high level of detail. This would allow them to quickly iterate designs and provide their customers with functional prototypes within one or two days.

Transition to In-House Resin DLP Printing

Faced with this dilemma, Kinboshi clearly stated its needs: low anisotropy in printed models, while simultaneously lower printing costs.

The Raise3D RMS220 fills this gap, combining the advantages of both. It employs SLS (Selective Laser Sintering) technology, possessing the core advantages of SLS technology: high strength, high density, and good isotropy; suitable for medium-batch continuous production with lower maintenance costs.

“RMS220 is a material that fills this gap. The powder sintering method gives RMS220 a high degree of freedom and reduces the risk of anisotropy, but, since the minimum material usage per cycle can be reduced, cost-effective operation is possible.” — 飯田浩, Director of Maebashi Office / Development Department Manager.

Operating the RMS220 via the Touchscreen The core advantages of the RMS220 also include:

Cost-effective production: With a build volume of 220 x 220 x 350 mm (17 liters), the RMS220 is one of the largest entry-level industrial SLS printers. The RMS220 series offers cost-effective continuous production with a maximum daily output of 5 kg (using standard PA12 material).
Extensive material compatibility and easy switching: The RMS220 supports a variety of materials, including PA12/PA11/TPU, etc. A maximum chamber temperature of 220 degrees Celsius meets the printing needs of most powders.
Exceptional precision for outstanding print quality: The RMS220 boasts exceptional printing precision. Equipped with a stable 75W laser, it precisely controls dot details, minimizing tilting, warping, and deformation during the printing process.

In April 2025, Kinboshi’s President and CEO Kazufumi Ishii personally visited Raise3D and was deeply impressed by the RMS220. Kinboshi also appreciated the service attitude and dedication of Raise3D’s Japanese distributor, Japan 3D Printer, which spurred their decision.

“My first honest impression was that it looked cool. I can expect the finished product to live up to that cool image, and perhaps this is especially true since I visited the manufacturer, but I was also able to confirm the manufacturer’s development attitude, so in that sense, I think it would be best to adopt it as a reflection of the product itself as well as the manufacturer’s attitude, with future expectations in mind.” — 石井一史, President and CEO

RMS220 printed model-FB Tank

RMS220 printed model - FB Tank

Choosing RMS220: From Doubt to Decision

Kinboshi did not rush into purchasing the RMS220 simply because of its conceptual advantages. Instead, they conducted rigorous practical performance tests. They printed a large, warp-prone part to evaluate dimensional accuracy and deformation control. They also conducted several functional tests, such as drop and hydrostatic tests: the part was dropped from its actual height without breaking; a 3mm thick pipe part successfully withstood 1 MPa pressure without leakage. These excellent test results ultimately led Kinboshi to choose the RMS220.

“We determined that it was robust enough for use in the final product. This was the key factor in our decision to use RMS220.” — 飯田浩

Cleaning the C220-P

C220-P Clean Station in use

FFF+SLS：The Key to Seamless Transition

In October 2025, Kinboshi, as the first customers worldwide, successfully installed the Raise3D RMS220 printer with the assistance of Japan 3D Printer, the Japanese distributor of Raise3D.

The success of a technology upgrade depends not only on equipment performance but also on its integration with existing workflows. Kinboshi’s core consideration is compatibility between FFF and SLS printers; Raise3D’s slicing software ideaMaker and cloud management platform RaiseCloud are compatible with the RMS220. Document management, queue scheduling, and status monitoring functions are all unified on a single platform.

Key personnell with the RMS220 Printer and Cleaning Station

Kinboshi employees can use the Pro2 and RMS220 without any training. The Pro2 will be used for prototyping, small-batch pilot production, and other low-cost manufacturing using different materials. The RMS220, on the other hand, is suitable for medium-scale production, combining strength and flexibility. Therefore, Kinboshi is committed to finding the best way for customers to utilize these 3D printers and achieve a balanced development of them.

“I checked out the actual device beforehand and felt it was an extremely usable machine. More importantly, it can be managed using the same RaiseCloud as the Pro2 I’ve been using, so I can continue using it without changing my on-site operations, which is very appealing .” — 飯田浩
RMS220 printed model-FB Tank

RMS220 printed model - FB Tank

FFF + SLS: Complementary cooperation to enrich production methods

Kinboshi’s experience shows that FFF and SLS technologies can complement each other, enriching additive manufacturing pathways. For companies hesitant to use 3D printers to produce marketable end products, Kinboshi’s President and CEO points out that speed is crucial for expanding new businesses and developing innovative products, therefore, the advantages of 3D printing should be fully utilized.

RMS220 printed model - Tube Joint CEO of Kinboshi said: “Many companies without their own production lines hesitate to enter the 3D printing field, but I believe that with 3D printers, many steps can be completed internally. Therefore, as a first step, in-house production of end products may be the most advanced technology currently available, but I believe we can quickly establish such a system.”

Conclusion

The deployment of Raise3D RMS220 not only enriches Kinboshi’s production methods but also enhances its competitive advantage in rapidly responding to market changes. This method is highly replicable, providing a clear transformation path for similar companies in industries such as industrial manufacturing, healthcare, and consumer electronics.

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Also: Prototyping