Prusa i3/zh cn

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Prusa i3 Documentation
Crystal Clear action run.png
Prusa i3

Release status: working

Prusai3-metalframe.jpg
Description
Prusa i3 is a redesign by Prusajr.
License
Author
Contributors
Based-on
Categories
CAD Models
External Link

Introduction

Prusa第三代是由RepRap核心团队Prusajr所设计的目前最新的3D打印机,它参考和借鉴了前两代的Prusa和其他RepRap打印机。

Specifications

  • Printed Parts: ???
  • Non-Printed Parts: ???
  • Material Cost: ???
  • Cost: ???
  • Printing Size: ??mm x ??mm x ??mm
  • Precision: ??mm (position/printing)
  • Speed: ??cm/s (position/printing)

主要改进

以下的改进是相对于上一代的Prusa而言(即Prusa i2)

  • 框架变得更加结实 (prevents x backlash)
  • 更容易组装
  • 参数化的原文件,方便组装不同大小的Prusa i3,且适应不同尺码的轴承

开发相关

Prusa Mendel 的开发进程与各种文件都在这个网址 github: https://github.com/josefprusa/Prusa3.

History

打印件部分

组装所需要的STL文件可在这里找到Clone_wars:_Prusa_iteración_3.

你可以用一下文件进行编译 [[2]] (box style files) [[3]] (Singel sheet style) 你需要复制 configuration.scad.dist 到 configuration.scad 然后完成客制化选项(就是填写各种参数)


RP every .scad in this directory (except complete-printer) once. Aim for 0.3mm layers and 2.2 extrusion width (width over thickness), for 0.66mm stroke width. Printer is tested at this setting.

Using doc/complete-printer.scad as a visual clue and doc/manual.txt as a guide, build the printer.

框架类型

There are two major Prusa i3 Frame Styles, the Single Sheet Frame, and the Box Style Frame. The Single Sheet Frame is designed to be manufactured through the use of a Laser cutter, WaterJet, or CNC Mill / Router Table. There are two current development tracks within the Single Sheet Frame, an Aluminium frame style, and a gusseted Wood frame style. Both are designed to support 6mm or thicker framing material. The Box Style Frame is designed to be easily manufactured at home with basic woodworking tools. The Y-axis for both frame styles is similar to that of the older Prusa Mendel Iteration 2.




单片型框架

这个框架由单片的金属片制成, 通常是铝,但也可以是其他的金属片,金属片厚度应当超过6mm/0.25英寸

Prusa i3 with a single metal sheet style frame.
Prusa i3 with a single metal sheet style frame.


优点:

- 看起来很专业(主观意见)

缺点:

- 要求特殊的工具(例如 Water flow jet cutter水压切割机 期望专业的翻译。。)

- XZ-frame 和 Y-frame 部分的连接不是那么的牢固



盒子型框架

这个框架由8小片木块组成

Prusa i3 with a box style frame.
Prusa i3 with a box style frame.


优点:

- 非常容易DIY(相比上面的那个)

- XZ-frame 和 Y-frame 部分的连接更加牢固 缺点:

- 看起来不是那么专业(主观意见)

电器部分

步进马达

Prusa i3 使用5个NEMA17步进马达(其中一个用在挤出机上)。 他们要连接到同一驱动器马达上. 如果使用韦德式挤出机( Wade's Extruder), 那么它的步进马达需要最小的静转矩(minimum holding torque)是 40Ncm (0.4Nm). More information can be found on the Stepper Motor page.

控制器电路

Prusa i3要求的控制器,有4点要求: 1.同时支持4个步进马达(不知道为什么上文说要5个), 2.支持1个热敏电阻输入 3.1个加热器(挤出机的加热电阻)输出 4.另一对热敏电阻和加热电阻,这是为热床(heated bed)准备的

选择哪个控制器随你喜好. 以下内容可提供对比List of electronics, Comparison of Electronics and Alternative Electronics.

挤出机

Extruder

2012年11月12日 Josef Prusa (@josefprusa) 发表了一张图片,一个装配了双挤出机的金属框架的i3

Prusa i3 with an unnamed dual extruder mounted.
Prusa i3 with an unnamed dual extruder mounted.

//Need name, info, and link to this extruder and how to build it. Can anyone help? -idolcrasher

Previous posts on Prusa's twitter feed reveal that Sound (Slic3r's的开发者) inspired Prusa to attach a dual extruder.

热床

请参考Heated Bed

Filament Holder

Here you can find some ways how to place the filament spool to the printer

TODO list some ways