LinuxCNC+EtherCAT（5）之关于LinuxCNC和EMC

About the software

关于本软件

* EMC (the Enhanced Machine Control) is a software system for computer control of machine tools
such as milling machines and lathes.

* EMC(增强型机器控制器)是一个用计算机控制诸如铣床和车床等机器的软件系统.

* EMC is free software with open source code. Current versions of EMC are entirely licensed under
the GNU General Public License, (GPL and LGPL,) and older versions of the software are available in the public domain.

* EMC 是开源的自由软件.EMC当前的版本完全采用通用公共许可协议(GPL和LGPL)，老版本也可在这里获取．

* EMC provides:

* EMC 提供:

o a graphical user interface (actually several interfaces to chose from)

o 图形的用户交互界面(事实上有几个界面可供选择)

o an interpreter for "G-code (the RS-274 machine tool programming language)

o "G代码"解释器(RS-274标准的NC代码机床编程语言)

o a realtime motion planning system with look-ahead

o 可预读的的运动控制系统

o operation of low-level machine electronics such as sensors and motor drives

低水平机床电气配置.(如传感器, 伺服驱动)

o an easy to use "breadboard" layer for quickly creating a unique configuration for your machine

简单快速的为你的机器的创建一个特别配制的"电路测试板"层

o a software PLC programmable with ladder diagrams

o 具有梯形图编程的PLC软件

o easy installation with .deb packages or a Live-CD

o 易于安装的.deb软件包和免安装live-CD

It does not provide drawing (CAD - Computer Aided Design) or G-code generation from the drawing
(CAM - Computer Automated Manufacturing) functions.

它并不提供绘图（CAD-计算机辅助设计）或生成G代码（CAM-计算机辅助制造）的功能.

* It can simultaneously move up to 6 axes and supports a variety of interfaces.

* 它能联动控制6个轴并支持各种接口。

* The control can operate true servos (analog or PWM) with the feedback loop closed by the EMC software
at the computer, or open loop with "step-servos" or stepper motors.

* 控制器能在计算机上通过EMC软件操作真正的闭环司服系统,半开环或步进电机

* Motion control features include: cutter radius and length compensation, path deviation limited
to a specified tolerance, lathe threading, synchronized axis motion, adaptive feedrate, operator feed override, and constant velocity control.

* 运动控制特性有包括 ：刀具半径和长度补偿，路径偏移在一个指定的公差内,车螺纹，轴的同步运动，自适应进给速度，手动控制, 恒线速度控制。

* Support for non-Cartesian motion systems is provided via custom kinematics modules. Available
architectures include hexapods (Stewart platforms and similar concepts) and systems with rotary joints to provide motion such as PUMA or SCARA robots.

通过制定运动模块,提供并支持非笛卡运动系统, 可用的结构包括六脚昆虫(Stewartguguc平台或类似概念)和回转连接的运动系统如PUMA或SCARA机器人

* EMC runs on Linux using real time extensions. Support currently exists for version 2.4 and 2.6
Linux kernels with real time extensions applied by RT-Linux or RTAI patches.

* EMC 运行在扩展的实时Linux上。支持当前已有的2.4和2.6实时Linux内核, 需要应用RT-linux或RTAI补丁.

About the people

关于他们

* A lot of people have worked and still work on EMC, most of them can be seen on the developers
list;

很多人在EMC上工作过或仍然工作. 他们大部分参在开发列表上被看到.

* The current Board of Directors are responsible for major project decisions and as a point of contact
with business.

当前的董事会 负责主要的项目决定和一些商业的接触.

* There is also a geographical map of some of our users;

这里有我们的一些的地图.

Supporters

支持者

LinuxCNC and EMC are non-commercial efforts. Many individuals have contributed vast amounts of time
and effort to help advance the state of EMC.

LinuxCNC和EMC是非营业性的结果,很多个人捐献出很多时间来努力帮助改进EMC的状态.

Such is the nature of an open source project and you can get a feel for where the effort has come
from by reading our mailing lists and examining the files committed to the SourceForge archives. We thank all the people who have contributed.

这是开源项目的性质, 你能从我们的邮件列表受到它并从SourceForge仓库上仔细检查提交的文件.

Additionally we would like to acknowledge the efforts of the following organizations that have helped:

另外我们非常感谢下面努力帮助的团体:

* The National Institutes of Standards and Technology , US Department of Commerce - the original
creators of the EMC software and a major continuing contributor to software development related to EMC.

国家工作标准协会,美国商业部门---EMC软件的原始创造者和主要持续捐助者且与关系到EMC的软件发展

* PMDX who provide hosting and support for the LinuxCNC web site.

PMDX 提供EMC网站的支持和主机

* Sherline Products, Inc. who host the BDI downloads and other large files.

Sherline Products, Inc. 提供下载一其它大文存储.

* The Smithy Company who provided meeting facilities for the EMC Fest.

The Smithy Company 提供EMC会议设备