Belgian 3D printing start-upFuselabhas launched its first FFF metal 3D printer, the FL300M, which features a patented rotary extruder designed to enhance metal powder-based filament printing.
由于其新颖的旋转挤出机设计，FL300M声称可以通过增加细丝和喷嘴驱动系统之间的接触点来最大程度地减少金属3D打印零件的丝衰竭的风险和不足的风险。
FL300M在Fuselab的比利时工厂生产，将在本月首次亮相formnext法兰克福的贸易展览会将于2022年初出售。
Improving FFF 3D printing
In addition to offering comparatively lower systems costs than other additive manufacturing processes, FFF delivers easy handling, a wide availability of raw material and the ability to produce parts with fully enclosed hollow features or internal support structures not possible with powder or resin-based systems.
Despite being around for decades, the FFF 3D printing process is continually being improved in order to最小化部分不规则,改善粒子发射率， 和optimize inter-layer heat transfer and adhesion. In fact, established 3D printer manufacturer3D系统发布了它first industrial FFF 3D printing system仅在今年，构成了其高速融合（HSF）平台的基础。
FFF 3D打印也通过开发新材料（例如soft and flexible TPU filaments,医学和工程级细丝,biodegradable filaments， 和高性能丝.
Fuselab的小说挤出机设计
Fuselab由Jonathan Palmaers于2018年成立，灵感来自3D Printing的潜力，并寻求解决该技术内的改进领域。该公司首先开发其专利的旋转挤出机，并在意识到其对金属印刷的预期收益之后，开始在FL300M上工作。
Fuselab’s facility is equipped with in-house engineering, prototyping, and manufacturing capabilities and operates on a closed-loop system that enables rapid development cycles and enhanced product quality control.
该公司的第一台FFF 3D打印机FL300M，由于其新颖的专利旋转挤出机，再加上高性能和精密运动系统，因此在拥挤的FFF市场中与其他人区分开。
Traditional FFF extruders tend to feed filament into the printer’s melt zone with one or two drive gears, which provide only one to two points of contact between the drive system and the filament. At higher speeds or extrusion forces this can lead to ‘slipping’ of the filament and subsequent under-extrusion.
为了解决这个问题，Fuselab根据三个驱动器设计了一个挤出机设计，每个驱动器都提供了12个接触点，总计挤出机的驱动机构和灯丝之间的36点接合点。
根据Fuselab的说法，用金属粉末的细丝打印时，参与点的数量增加尤其有利，因为由于其高金属粉末和低粘合剂含量，它们往往更脆弱。因此，在整个挤出机中分发多个接触点可最大程度地减少细丝衰竭的风险，而挤出机的非滑移特性则减少了排列不足，因此导致金属零件具有很高的固体性。
With its patented extruder technology the startup is ultimately aiming to raise the quality and reliability of FFF metal printing.
FL300m
虽然获得专利的挤出机设计是FL300M的展示，但该机器还提供了一系列其他值得注意的功能。该打印机配备了300 x 300 x 280毫米的构建体积，能够打印多种材料，并针对金属粉末丝进行了优化。
该打印机在灯丝直径为2.85毫米的开放式细丝系统上运行，而与构建封闭式未耦合的刚性运动系统旨在增强打印过程。该机器还配备了带有HEPA过滤的封闭式构建室。
FL300mwill make its debut at Formnext 2021, and will be available in early 2022.
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特色图片显示Fuselab FL300M 3D打印机。通过Fuselab的照片。
