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Lesson 1: Our Solar System On a visit to the National Mall in Washington, DC, one can see monuments of a nation—Memorials to Lincoln, Jefferson, and WWII, the Vietnam Veterans Memorial Wall, and Washington Monument. Standing among them is Voyage—a one to 10-billion scale model of our Solar System—spanning 2,000 feet from the National Air and Space Museum to the Smithsonian Castle. Voyage provides visitors a powerful understanding of what we know about Earth’s place in space and celebrates our ability to know it. It reveals the true nature of humanity’s existence—six billion souls occupying a tiny, fragile, beautiful world in a vast space. Voyage is an exhibition that speaks to all humanity. The National Center for Earth and Space Science Education is therefore making replicas of Voyage available for permanent installation in communities worldwide (http://voyagesolarsystem.org.) This lesson is one of many grade K-12 lessons developed to bring the Voyage experience to classrooms across the nation through the Center’s Journey through the Universe program. Journey through the Universe takes entire communities to the space frontier (http://journeythroughtheuniverse.org.) The Voyage exhibition on the National Mall was developed by Challenger Center for Space Science Education, the Smithsonian Institution, and NASA. Copyright July 2009
How to Install Android SDK and ADB Drivers for HTC Evo 4G! Before you can begin hacking your HTC Evo 4G, you will first want to install the Android SDK and ADB drivers for HTC Evo 4G, so you have all the tools needed for hacking and also your computer recognizes your HTC Evo 4G correctly. So, let's get started, it's not that hard. First, download the appropriate Android SDK for your platform. (Windows, Mac, or Linux) Also, you will need Java running on your computer. If you don't have Java installed, go to Java.com and install the appropriate Java for your platform (not browser!). Once you've downloaded the Android SDK, unzip it into a directory you can remember such as c:\SDK (for Windows). Run SDK Setup.exe (for Windows, others should be similar), and you will get an option to install the Android SDK. Once the SDK Setup starts, select Available Packages and check off on the respository.xml and you should see a bunch of options to install. Select just "SDK Platform for Android 2.1" and "Usb Driver package" as seen here: Copyright 2010 by Max Lee & HTCEvoHacks.com If you get an error message with something about HTTPS, you can check out "Force https:// ... using http://" under Settings and try the above step again. Once you've got the two stuff installed, you are almost done, just close the SDK Setup program. Next, we need to install ADB drivers so your computer can talk to your HTC Evo 4G. Copyright 2010 by Max Lee & HTCEvoHacks.com How to Install ADB Drivers for HTC Evo 4G! (Windows Only) Before you can install ADB drivers, you need to put your HTC Evo 4G into "recovery" mode, otherwise your computer won't recognize your phone as an "ADB" device, which we want. *Note: I believe Mac users can actually skip this step, ADB drivers just work on the Macs. Not sure about linux, let me try it on my Ubuntu and will update this post later. So, first turn off your HTC Evo 4G then hit the power button WHILE holding down the volume down button, like this: Copyright 2010 by Max Lee & HTCEvoHacks.com
Two General Safety Rule for CNC Machines − Never operate a CNC machine without proper training or consulting the specific operator's manual for that particular machine and control type. − Never attempt to program a CNC machine without proper training or consulting the specific programmer's manual for that particular machine and control type. CNC machine safety system The built-in safety system on a CNC machine includes guards and protective devices which should be securely fitted and always kept in position while the machine is being used. It may include: Emergency Stop Button Used to shut down the machine immediately. It is located on the control panel and at other points on the machine, for example the hand held unit. Soundproof Casing Reduces noise emission generated by the operating section and protects the operator from the risk of flying objects or tool fragments. Curtain Guards Made of PVC and designed to protect the operator from the risk of airborne chips or tool fragments. Guard Fence The fence marks the working area in which the machine moves. It protects the operator from the risk of interference with moving parts. The guard may be of an open type or made of mesh. Contact Mats When the operator stands on the mat, the machine stops immediately, protecting the operator from moving parts of the machine. Below are some general personal safety rules that you can use as a guide only. You might like to add any other rules that apply to you. DO: • Always wear safety glasses and hearing protection when operating CNC machines. • Always wear safety glasses when closely observing cutting tools. • Always wear safety boots or other suitable footwear. • Always keep long hair covered when operating CNC machines. • Always keep hands clear of moving parts during machining operations. • Always stand clear of the machine while it is running and warn others of the dangers of being too close. • Always avoid contact with cutting edges when handling tools or changing tools by hand. • Always turn the CNC machine off completely and clean it up when you have finished using it. ...
Computer Numerical Control (CNC) is one in which the functions and motions of a machine tool are controlled by means of a prepared program containing coded alphanumeric data. CNC can control the motions of the workpiece or tool, the input parameters such as feed, depth of cut, speed, and the functions such as turning spindle on/off, turning coolant on/off. Applications The applications of CNC include both for machine tool as well as non-machine tool areas. In the machine tool category, CNC is widely used for lathe, drill press, milling machine, grinding unit, laser, sheet-metal press working machine, tube bending machine etc. Highly automated machine tools such as turning center and machining center which change the cutting tools automatically under CNC control have been developed. In the non-machine tool category, CNC applications include welding machines (arc and resistance), coordinate measuring machine, electronic assembly, tape laying and filament winding machines for composites etc. Advantages and Limitations The benefits of CNC are (1) high accuracy in manufacturing, (2) short production time, (3) greater manufacturing flexibility, (4) simpler fixturing, (5) contour machining (2 to 5 -axis machining), (6) reduced human error. The drawbacks include high cost, maintenance, and the requirement of skilled part programmer .
Intro to CNC Machining • CNC stands for computer numeric controlled. It refers to any machine tool (i.e. mill, lathe, drill press, etc.) which uses a computer to electronically control the motion of one or more axes on the machine. • The development of NC machine tools started from a task supported by the US Air Force in the early 1950’s, involving MIT and several machine-tool manufacturing companies. The need was recognized for machines to be able to manufacture complex jet aircraft parts. • As computer technology evolved, computers replaced the more inflexible controllers found on the NC machines; hence the dawn of the CNC era. • CNC machine tools use software programs to provide the instructions necessary to control the axis motions, spindle speeds, tool changes and so on. • CNC machine tools allow multiple axes of motion simultaneously, resulting in 2D and 3D contouring ability. • CNC technology also increases productivity and quality control by allowing multiple parts to be produced using the same program and tooling. There are two ways to program modern CNC machine tools. 1. Conversational Programming. This is the simpler of the two methods. In effect, this is a macro programming language used to instruct the machine to perform pre-programmed cycles (i.e. facing, drilling holes in arrays, etc.). When writing a conversational program, you simply enter the appropriate parameters associated with each machining cycle. This is analogous to using the polar array function in SolidWorks or Pro/E; you don’t have to do the layout or trig to find the location of the features; you just specify the essential parameters and the software does the rest for you. 2. CAM Programming. This is the more powerful of the two methods. Using this method, you import your part model into a CAM (computer aided manufacturing) program and define the parameters associated with each and every machined feature on the part. These parameters include tool diameter and length, depth of cut, tool path geometry, etc.
Numerical Control • Numerical control is a method of automatically operating a manufacturing machine based on a code of letters, numbers, and special characters. • The numerical data required to produce a part is provided to a machine in the form of a program, called part program or CNC program. • The program is translated into the appropriate electrical signals for input to motors that run the machine. • First NC method was devised and demonstrated by John Parsons in early 1950s (see resources at end). Computer Numerical Control (CNC) A CNC machine is an NC machine with the added feature of an on-board computer. The computer is referred to as the machine control unit (MCU) Hardware Configuration of NC Machine Machine Control Unit (MCU) is the brain of the NC machine. The Data Processing Unit (DPU) reads the part program. The Control Loop Unit (CLU) controls the machine tool operation. CNC Machines Machining Centers, equipped with automatic tool changers, are capable of changing 90 or more tools. Can perform milling, drilling, tapping, boring… on many faces.
This Manual is the Property of Productivity Inc The document may not be reproduced without the express written permission of Productivity Inc. The content must not be altered, nor may the Productivity Inc name be removed from the materials. This material is to be used as a guide to operation of the machine tool. The Operator is responsible for following Safety Procedures as outlined by their instructor or manufacturer s specifications. To obtain permission, please contact firstname.lastname@example.org. Haas CNC Mill Programming Training Manual Table of Contents INTRODUCTION......... 4 MACHINE HOME WITH WORK OFFSETS.............. 6 WORK COORDINATE SELECTION.............. 7 TOOL LENGTH COMPENSATION G43....... 8 ABSOLUTE AND INCREMENTAL POSITIONING...... 9 THE CARTESIAN COORDINATE SYSTEM.... 10 WORD ADDRESS PROGRAMMING....... 11 PROGRAMMING...... 12 ALPHABET WORD ADDRESS ASSIGNMENTS....... 13 PREPARATORY FUNCTIONS (G CODES)...... 18 MACHINE FUNCTIONS (M CODES)..... 21 PROGRAM STRUCTURE AND FORMAT... 25 PROGRAM FORMAT...... 26 MACHINE DEFAULTS.................. 27 PROGRAMMING WITH CODES........... 28 PROGRAM STRUCTURE............. 29 LINEAR AND CIRCULAR TOOL PATHS.......... 31 LINEAR/CIRCULAR MOVEMENT CREATING TOOL PATH......... 32 INTERPOLATION COMMANDS.......... 33 CIRCULAR INTERPOLATION (G02 AND G03) COMMANDS........... 34 CUTTER COMPENSATION (G41, G42)......... 39 FORMULAS TAPPING, SPEEDS AND FEEDS....... 47 DRILLING, TAPPING, BORING CANNED CYCLES...... 48 CANNED CYCLES.............. 49 LOOPING COMMAND CYCLES......... 69 BOLT HOLE PATTERNS......... 71 ADDITIONAL G CODES........ 74 MILLING CIRCLES WITH CUTTER COMP................. 76 THREAD MILLING........ 77 CIRCULAR POCKET MILLING USING G12 AND G13................. 78 CIRCULAR PLANE SELECTION.............. 83 INCH / METRIC SELECTION (G20, G21)............... 84 SETTING WORK, TOOL OFFSETS THROUGH THE PROGRAM (G10).......... 85 GENERAL PURPOSE POCKET MILLING (G150)..... 86 ENGRAVING (G47)................. 93 SUBROUTINES (SUBPROGRAMS)................ 96 SUBROUTINES............... 97 EXERCISES......... 99 FINAL EXERCISES......... 103 Productivity Inc - Haas CNC Mill Programming Manual
Accident Management Regulatory Document REGDOC-2.3.2 © Canadian Nuclear Safety Commission (CNSC) 2013 PWGSC catalogue number XXXXX ISBN XXXXX Extracts from this document may be reproduced for individual use without permission provided the source is fully acknowledged. However, reproduction in whole or in part for purposes of resale or redistribution requires prior written permission from the Canadian Nuclear Safety Commission. Également publié en français sous le titre : Conduite de l’exploitation : Gestion des accidents Document availability This document can be viewed on the CNSC Web site at nuclearsafety.gc.ca. To request a copy of the document in English or French, please contact: Canadian Nuclear Safety Commission 280 Slater Street P.O. Box 1046, Station B Ottawa, Ontario K1P 5S9 CANADA Tel.: 613-995-5894 or 1-800-668-5284 (in Canada only) Facsimile: 613-995-5086 Email: email@example.com Web site: nuclearsafety.gc.ca Facebook: facebook.com/CanadianNuclearSafetyCommission YouTube: youtube.com/cnscccsn Publishing history [August 2013] Version 0.00 August 2013 REGDOC 2.3.2, Accident Management Preface This regulatory document is part of the CNSC’s operating performance series of regulatory documents, which also covers the conduct of licensed activities. The full list of regulatory document series is included in the back of this document and can be found on the CNSC’s Web site at nuclearsafety.gc.ca/regulatorydocuments REGDOC-2.3.2, Accident Management, sets out the requirements and guidance of the Canadian Nuclear Safety Commission (CNSC) for the development, implementation and validation of accident management programs for reactor facilities. Accident management is a commitment to the defence-in-depth approach and is an important component in the licensee’s overall capabilities to ensure the risks from nuclear reactors remain low. Defence in depth is applied to all organizational, behavioural, and design-related safety and security activities to ensure they are subject to overlapping provisions. It is important for licensees to implement and maintain operational procedures, guidelines and adequate capabilities to deal with abnormal situations and accidents, including severe accidents. This regulatory document specifies safety principles, high-level requirements and supporting guidelines that allow licensees to develop, implement, and evaluate an integrated accident management program, which includes components that address severe accident management. Key principles and elements used in developing this document are consistent with International Atomic Energy Agency (IAEA) safety principles, guides and reports, such as the following: ...
Background Following the Three Mile Island Unit 2 accident, the U.S. Nuclear Regulatory Commission (NRC) developed a plan (NUREG-1050 – August 1985) to resolve the severe accident generic issue. This plan identified that utility commitment to excellence in risk management, including prevention and mitigation, is key to protection of public health and safety; it also identified the need for new severe accident research. The requirements for an Accident Management Program were outlined by the NRC in SECY 88 012, which included accident management strategies, accident management training, calculation aids, instrumentation requirements, and utility organization and decision making for severe accidents. In 1992, the Electric Power Research Institute detailed a technical basis for severe accident management in TR 101869. Following issuance of that report, each of the three Owners Groups (Westinghouse [WOG], Combustion Engineering [CEOG] and Babcock & Wilcox [B&WOG]) developed generic severe accident management guidance (SAMG) support material that served as a framework for each utility’s SAMG program. In a docketed letter to the NRC, each utility committed to implementing and maintaining a plant-specific SAMG program based on the Owners Group products. Based on implementation questions, the CEOG subsequently developed additional computational aids for its SAMG and the WOG issued a Revision 1 to its SAMG. These SAMGs are one of the bases for the International Atomic Energy Agency (IAEA) requirements in Safety Guide No. NS-G-2.15. After the Fukushima Daiichi accident in 2011, the NRC issued a draft procedure for inspection of the utility Severe Accident Management programs. These inspections will be conducted as part of the reactor oversight process and will focus on the utility’s periodic maintenance of and training on the SAMG. In addition, the NRC and the Institute of Nuclear Power Operators are reviewing the scope and content of the current SAMG programs in the United States with respect to insights learned from the Fukushima Daiichi accident to determine the extent to which program upgrades are appropriate.
Resources to Support Your Employment and Life Plans NORTH CAROLINA CARE-LINE 1-800-662-7030 This is a number that you can call to find out about community resources all over North Carolina. Employment Assistance and Job Training Employment Security Commission 700 Wade Avenue PO Box 27227 Raleigh, NC 27611 Phone: 919-733-3098 Wake County JobLink Center-Cary 742-F E. Chatham Street Cary, NC 27511 Phone: 919-469-7781 Wake County JobLink Center 220 Swinburne Street PO Box 46833 Raleigh, NC 27610 Phone: 919-212-7781 Cornerstone 220 Snow Avenue Raleigh, NC 27603 Phone: 919-508-0777 Chavis Heights Job Service Office 12 Edgecombe Terrace Raleigh, NC 27601 Phone: 919-831-6834 Wake County Jobs for the Homeless 136 E. Morgan Street Raleigh, NC 27601 Phone: 919-856-6055 Ex-Offender Program 700 Wade Avenue Raleigh, NC 27605 Phone: 919-212-3849 Vocational Rehabilitation Office Raleigh Unit Office 436 N. Harrington Street Raleigh, NC 27603 Phone: 919-733-7807 www.co.wake.nc.us Also known as the Wake County Job Service Office. Comments/Appointments Zip Code for Street Address is: 27620 Page 1 JOBSTART COUNTY RESOURCE LIST WAKE COUNTY Resources to Support Your Employment and Life Plans NORTH CAROLINA CARE-LINE 1-800-662-7030 This is a number that you can call to find out about community resources all over North Carolina. Employment Assistance and Job Training continued Raleigh Cape Center 18 E. South St. Phone: 919-546-8237 or 919-546-8340 Vocational Rehabilitation Service South Central Region Office 1200 Fairmont Court Fayetteville, NC 28301 Phone: 910-486-1288 Wake Technical Community College 9101 Fayetteville Road Raleigh, NC 27603 Phone: 919-662-3400 Wake County Job Training Office 300 South Salisbury Street Raleigh, NC Phone: 919-250-3770 Comments/Appointments Housing and/or Emergency Shelter New Beginnings PO Box 30517 Raleigh, NC 27622-0517 Phone: 919-420-7940 Poole Road Transitional Housing 222 W. Hargett Street Raleigh, NC 27601 Phone: 919-212-1123 City of Raleigh Incentive Program 1420 S. Wilmington Street Raleigh, NC 27601 Phone: 919-831-6113 or Administration: 919-890-6100 Cornerstone 220 Snow Avenue Raleigh, NC 27603 Phone: 919-831-6650 Emmaus House 10 N. East Street Raleigh, NC 27601 Phone: 919-838-6706 Target Group: Women and women with children. Mothers must be working/seeking employment. Target Group: Families Must be employed Target Group: Single men Target Group: Single men Target Group: Single men Housing and/or Emergency Shelter continued www.co.wake.nc.us ...