开源

PRUSA释放MK3升级以启用5种材料3D打印和改进的固件

PRUSA研究, an获奖manufacturer of open-source 3D printers, has released an upgrade which enables its i3 MK3 Prusa to print using 5 different materials.A new firmware for the Original Prusa i3 MK3 and MK 2.5 has also been released.

The Multi Material Upgrade 2.0 (MMU2) is available to pre-order atPrusa的电子店for $299 (tax excluded).

公司的创始人兼首席执行官约瑟夫·普雷沙(JosefPrůša)在公司的博客上写道What we have here is a one-of-a-kind multi-material printing addon that is fully integrated with the printer, so everything is perfectly synchronized and the whole thing works seamlessly as a single unit. It’s just like printing on the standard MK3. Plus, our MMU 2.0 is the only device that supports up to 5 materials loaded at the same time.”

3D printing with 5 filaments

The Multi Material Upgrade 2.0 makes significant hardware changes to the first generation MMU tool. Průša says,“我们想要一个更简单,更高效的设计。”

In the upgrade, the number of extruder motors is cut to 1 from 4. The MMU2 upgrade enables the user to print with 5 different types of filaments and uses direct drive feed instead of a Bowden drive used in MMU1.průša解释说,鲍登驱动器正在引起“具有柔性细丝,适当的缩回和其他事物的问题”。

电动选择器头配备了内置刀片,如果卸载过程中卡住,该刀片将切断丝。此升级使打印机不太容易被干扰,并且在接受不同的质量灯丝方面更适合。

Operational features are also included in the tool. Control buttons are added on top of the MMU2 body for moving the selector head and loading and unloading filaments. These buttons can also be used to “calibrate the length of the PTFE tube.”

The Original Prusa i3 MK3 with Multi Material Upgrade 2.0. Image via Prusa3D
The Original Prusa i3 MK3 with Multi Material Upgrade 2.0. Image via Prusa3D

Prusa的固件升级

普鲁萨的新firmware 3.4.0 for Original Prusa i3 MK3 and MK2.5has improved the 3D printers’ filament flow capabilities. Original Prusa i3 MK3 printers are equipped with filament sensor, which keeps track of the loaded filament. This filament sensor can notify the user of stuck and runout filament.průšaexplains,负责分析的软件the filament flow has been completely rewritten to improve the precision and reliability of the sensor […] it means that the sensor can recognize filament runout with greater accuracy and the number of false detections drops significantly.

Prusa's firmware upgrade with improved filament sensor. Image via Prusa3D
Prusa的固件升级具有改进的细丝传感器。图像通过prusa3d

最广泛使用的3D打印机

2016年,Prusa I3是世界上最广泛使用的3D打印机。其受欢迎程度的一个原因是其开源硬件,它可以快速改进打印机硬件和打印功能。

过去,约瑟夫·普雷沙(JosefPrůša)还与3D印刷行业谈到了他对开源硬件

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特色图像showthe Original Prusa i3 MK3多材料升级。图像通过prusa3d