The Often Overlooked 'Shop Workhorse
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Micro-Ruler MR-1 a NPL (NIST Counterpart in the U.K.)Traceable Certified Reference Material
Micro-Ruler MR-1 A NPL (NIST counterpart in the U.K.)Traceable Certified Reference Material . ATraceable “Micro-Ruler”. Markings are all on one side. Mirror image markings are provided so right reading numbers are always seen. The minimum increment is 0.01mm. The circles (diameter) and square boxes (side length) are 0.02, 0.05, 0.10, 0.50, 1.00, 2.00 and 5.00mm. 150mm OVERALL LENGTH 150mm uncertainty: ±0.0025mm, 0-10mm: ±0.0005mm) 0.01mm INCREMENTS, SQUARES & CIRCLES UP TO 5mm TED PELLA, INC. Microscopy Products for Science and Industry P. O. Box 492477 Redding, CA 96049-2477 Phone: 530-243-2200 or 800-237-3526 (USA) • FAX: 530-243-3761 [email protected] www.tedpella.com DOES THE WORLD NEED A TRACEABLE RULER? The MR-1 is labeled in mm. Its overall scale extends According to ISO, traceable measurements shall be over 150mm with 0.01mm increments. The ruler is designed to be viewed from either side as the markings made when products require the dimensions to be are both right reading and mirror images. This allows known to a specified uncertainty. These measurements the ruler marking to be placed in direct contact with the shall be made with a traceable ruler or micrometer. For sample, avoiding parallax errors. Independent of the magnification to be traceable the image and object size ruler orientation, the scale can be read correctly. There is must be measured with calibration standards that have a common scale with the finest (0.01mm) markings to traceable dimensions. read. We measure and certify pitch (the distance between repeating parallel lines using center-to-center or edge-to- edge spacing. -
Paul Sellers' Workbench Measurements and Cutting
PAUL SELLERS’ WORKBENCH MEASUREMENTS AND CUTTING LIST PAUL SELLERS’ WORKBENCH MEASUREMENTS AND CUTTING LIST NOTE When putting together the cutting list for my workbench, I worked in imperial, the system with which I am most comfortable. I was not happy, however, to then provide direct conversions to metric because to be accurate and ensure an exact fit this would involve providing measurements in fractions of millimetres. When I do work in metric I find it more comfortable to work with rounded numbers, therefore I have created two slightly different sets of measurements. This means that in places the imperial measurement given is not a direct conversion of the metric measurement given. Therefore, I suggest you choose one or other of the systems and follow it throughout. © 2017 – Paul Sellers v2 PAUL SELLERS’ WORKBENCH MEASUREMENTS AND CUTTING LIST WOOD QTY DESCRIPTION SIZE (IMPERIAL) SIZE (METRIC) (THICK X WIDE X LONG) (THICK X WIDE X LONG) 4 Leg 2 ¾” x 3 ¾” x 34 ⅜” 70 x 95 x 875mm 1 Benchtop 2 ⅜” x 12” x 66” 65 x 300 x 1680mm 2 Apron 1 ⅝” x 11 ½” x 66” 40 x 290 x 1680mm 1 Wellboard 1” x 12 ½” x 66” 25 x 320 x 1680mm 4 Rail 1 ½” x 6” x 26” 40 x 150 x 654mm 2 Bearer 1 ¼” x 3 ¾” x 25” 30 x 95 x 630mm 4 Wedge ⅝” x 1 ½” x 9” 16 x 40 x 228mm 4 Wedge retainer ⅝” x 1 ½” x 4” 16 x 40 x 100mm HARDWARE QTY DESCRIPTION SIZE (IMPERIAL) SIZE (METRIC) 1 Vise 9” 225mm Dome head bolts (including nuts and washers) for 4 ⅜” x 5” 10 x 130mm bolting legs to aprons 2 Lag screws (with washers) for underside of vise ½” x 2 ½” 12 x 65mm 2 Lag screws for face -
Verification Regulation of Steel Ruler
ITTC – Recommended 7.6-02-04 Procedures and guidelines Page 1 of 15 Effective Date Revision Calibration of Micrometers 2002 00 ITTC Quality System Manual Sample Work Instructions Work Instructions Calibration of Micrometers 7.6 Control of Inspection, Measuring and Test Equipment 7.6-02 Sample Work Instructions 7.6-02-04 Calibration of Micrometers Updated / Edited by Approved Quality Systems Group of the 28th ITTC 23rd ITTC 2002 Date: 07/2017 Date: 09/2002 ITTC – Recommended 7.6-02-04 Procedures and guidelines Page 2 of 15 Effective Date Revision Calibration of Micrometers 2002 00 Table of Contents 1. PURPOSE .............................................. 4 4.6 MEASURING FORCE ......................... 9 4.6.1 Requirements: ............................... 9 2. INTRODUCTION ................................. 4 4.6.2 Calibration Method: ..................... 9 3. SUBJECT AND CONDITION OF 4.7 WIDTH AND WIDTH DIFFERENCE CALIBRATION .................................... 4 OF LINES .............................................. 9 3.1 SUBJECT AND MAIN TOOLS OF 4.7.1 Requirements ................................ 9 CALIBRATION .................................... 4 4.7.2 Calibration Method ...................... 9 3.2 CALIBRATION CONDITIONS .......... 5 4.8 RELATIVE POSITION OF INDICATOR NEEDLE AND DIAL.. 10 4. TECHNICAL REQUIREMENTS AND CALIBRATION METHOD ................. 7 4.8.1 Requirements .............................. 10 4.8.2 Calibration Method: ................... 10 4.1 EXTERIOR ............................................ 7 4.9 DISTANCE -
Cocobolo Samuel J
View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by Yale University Yale University EliScholar – A Digital Platform for Scholarly Publishing at Yale Yale School of Forestry & Environmental Studies School of Forestry and Environmental Studies Bulletin Series 1923 Cocobolo Samuel J. Record George A. Garratt Follow this and additional works at: https://elischolar.library.yale.edu/yale_fes_bulletin Part of the Forest Biology Commons, Forest Management Commons, and the Wood Science and Pulp, Paper Technology Commons Recommended Citation Record, Samuel J., and George A. Garratt. 1923. ocC obolo. Yale School of Forestry Bulletin 8. 42 pp. + plates This Book is brought to you for free and open access by the School of Forestry and Environmental Studies at EliScholar – A Digital Platform for Scholarly Publishing at Yale. It has been accepted for inclusion in Yale School of Forestry & Environmental Studies Bulletin Series by an authorized administrator of EliScholar – A Digital Platform for Scholarly Publishing at Yale. For more information, please contact [email protected]. A Note to Readers 2012 This volume is part of a Bulletin Series inaugurated by the Yale School of Forestry & Environmental Studies in 1912. The Series contains important original scholarly and applied work by the School’s faculty, graduate students, alumni, and distinguished collaborators, and covers a broad range of topics. Bulletins 1-97 were published as bound print-only documents between 1912 and 1994. Starting with Bulletin 98 in 1995, the School began publishing volumes digitally and expanded them into a Publication Series that includes working papers, books, and reports as well as Bulletins. -
Marking and Cutting Gauges
Well Stocked Shop Multi-Marker If you’re constantly resetting your gauge to a single measurement, a 3-in-1 Brass Wheel Marking Gauge second gauge, like Lee Valley’s brass Marking Gauge #153490, $15.99 05N65.01, $24.50 3-in-1 gauge, may solve the problem. leevalley.com This gauge sports a head that you Marking and can outfit with a pin, knife, or blade, so you can select the cutter best suited to the task at hand. Cutting Gauges What I like best about this tool is its size. More than one way to make your mark woods. Filing a flat on one side of Like a 4" square, the pin can correct the tendency the compact gauge By Jeff Day to tear out, but your best bet is to fits neatly into my cuttingpartner gauge it with a cutting gauge. apron pocket so it’s With a knife-edged marker, a always in easy reach. Marking and excels at making M cutting gauges crisp, clean lines across the any years ago when I A pin-headed gauge is good grain. Compared to a pin- began tooling up my shop, I for establishing lines parallel scratched line, the cutline helps quickly discovered how much One of my first purchases to the grain, such as you’d need prevent splintering and tear- I could accomplish with basic was the markingonly member gauge of the when laying out hinges, grooves out, a handy attribute when hand tools. Though many were gauge family that is technically for drawer bottoms, rabbets, or chiseling dovetails at their antiques, it wasn’t long before called a due to the thickness of a board when baseline. -
Stay Sharp B Ill Carroll
r 72 gt a hadl o kif akig ad stay sharp y ill carroll Knife making has become a popular endeavor for woodworkers of all skill levels. This beginner’s guide will get you started. { no. 59 } rom cutting and marking in the Fshop, to hunting and camping, to preparing a simple meal, a good knife is indispensable. Mass-produced knives gt a hadl o kif akig ad can be found for every budget and use. But custom knives, which are often far more attractive, tend to get expensive very quickly. stay sharp Of course, the ultimate custom 1 2 knife would include a hand-forged and hand-sharpened blade. If you’re not up for the expense and dirty work of such an endeavor, you can still experience the pride of a well-crafted and functional addition to your tool collection. All you need is a knife kit. It’s all in there 3 4 A knife kit consists of a prefabricated blade and pins, which allows the maker to select handle materials, assemble Select wood for your scales and the knife, and shape and polish it to determine which sides will face away perfection. It requires minimal tools, from the handle portion of the knife good attention to aesthetic detail and blank, or the “tang.” Using the blank, a few hours of shop time. Once you’ve trace the shape of the tang onto each gained some knife-making experience, scale (Fig. 3). Make sure to trace the there are hundreds of types of knives tang in the proper orientation to keep (and swords, and spears) available as the best woodgrain on the visible 5 kits from a number of sources. -
MICHIGAN STATE COLLEGE Paul W
A STUDY OF RECENT DEVELOPMENTS AND INVENTIONS IN ENGINEERING INSTRUMENTS Thai: for III. Dean. of I. S. MICHIGAN STATE COLLEGE Paul W. Hoynigor I948 This]: _ C./ SUPP! '3' Nagy NIH: LJWIHL WA KOF BOOK A STUDY OF RECENT DEVELOPMENTS AND INVENTIONS IN ENGINEERING’INSIRUMENTS A Thesis Submitted to The Faculty of MICHIGAN‘STATE COLLEGE OF AGRICULTURE AND.APPLIED SCIENCE by Paul W. Heyniger Candidate for the Degree of Batchelor of Science June 1948 \. HE-UI: PREFACE This Thesis is submitted to the faculty of Michigan State College as one of the requirements for a B. S. De- gree in Civil Engineering.' At this time,I Iish to express my appreciation to c. M. Cade, Professor of Civil Engineering at Michigan State Collegeafor his assistance throughout the course and to the manufacturers,vhose products are represented, for their help by freely giving of the data used in this paper. In preparing the laterial used in this thesis, it was the authors at: to point out new develop-ants on existing instruments and recent inventions or engineer- ing equipment used principally by the Civil Engineer. 20 6052 TAEEE OF CONTENTS Chapter One Page Introduction B. Drafting Equipment ----------------------- 13 Chapter Two Telescopic Inprovenents A. Glass Reticles .......................... -32 B. Coated Lenses .......................... --J.B Chapter three The Tilting Level- ............................ -33 Chapter rear The First One-Second.Anerican Optical 28 “00d011 ‘6- -------------------------- e- --------- Chapter rive Chapter Six The Latest Type Altineter ----- - ................ 5.5 TABLE OF CONTENTS , Chapter Seven Page The Most Recent Drafting Machine ........... -39.--- Chapter Eight Chapter Nine SmOnnB By Radar ....... - ------------------ In”.-- Chapter Ten Conclusion ------------ - ----- -. -
10-Inch Drum Sander
10-INCH DRUM SANDER For replacement parts visit Model # 65910 WENPRODUCTS.COM bit.ly/wenvideo IMPORTANT: Your new tool has been engineered and manufactured to WEN’s highest standards for dependability, ease of operation, and operator safety. When properly cared for, this product will supply you years of rugged, trouble-free performance. Pay close attention to the rules for safe operation, warnings, and cautions. If you use your tool properly and for its intended purpose, you will enjoy years of safe, reliable service. NEED HELP? CONTACT US! Have product questions? Need technical support? Please feel free to contact us at: 800-232-1195 (M-F 8AM-5PM CST) [email protected] WENPRODUCTS.COM NOTICE: Please refer to wenproducts.com for the most up-to-date instruction manual. TABLE OF CONTENTS Technical Data 2 Safety Introduction 3 General Safety Rules 4 Electrical Information 6 Specific Rules for Drum Sanders 7 Know Your Drum Sander 8 Unpacking 9 Assembly 10 Preparation 14 Operation 18 Adjustments 19 Maintenance 22 Troubleshooting 24 Exploded View and Parts List 26 Warranty Statement 30 TECHNICAL DATA Model Number: 65910 Motor: 120V, 60Hz, 10.5A Drum Speed: 1440 RPM Sandpaper Speed: 2300 FPM Conveyor Feed Speed: 0 to 10 FPM Maximum Workpiece Width: 9-1/2 in. (240mm) Minimum Workpiece Width: 3/4 in. (19mm) Maximum Workpiece Height: 3 in. (75mm) Minimum Workpiece Height: 1/4 in. (6mm) Minimum Workpiece Length 4-3/4 in. (120mm) Sandpaper Width: 3 in. Sandpaper Length: 62-1/2 in. Sanding Drum Size: 5-1/8 x 10 in. (132 x 255mm) Dust Port Diameter: 3.9 in. -
1. Hand Tools 3. Related Tools 4. Chisels 5. Hammer 6. Saw Terminology 7. Pliers Introduction
1 1. Hand Tools 2. Types 2.1 Hand tools 2.2 Hammer Drill 2.3 Rotary hammer drill 2.4 Cordless drills 2.5 Drill press 2.6 Geared head drill 2.7 Radial arm drill 2.8 Mill drill 3. Related tools 4. Chisels 4.1. Types 4.1.1 Woodworking chisels 4.1.1.1 Lathe tools 4.2 Metalworking chisels 4.2.1 Cold chisel 4.2.2 Hardy chisel 4.3 Stone chisels 4.4 Masonry chisels 4.4.1 Joint chisel 5. Hammer 5.1 Basic design and variations 5.2 The physics of hammering 5.2.1 Hammer as a force amplifier 5.2.2 Effect of the head's mass 5.2.3 Effect of the handle 5.3 War hammers 5.4 Symbolic hammers 6. Saw terminology 6.1 Types of saws 6.1.1 Hand saws 6.1.2. Back saws 6.1.3 Mechanically powered saws 6.1.4. Circular blade saws 6.1.5. Reciprocating blade saws 6.1.6..Continuous band 6.2. Types of saw blades and the cuts they make 6.3. Materials used for saws 7. Pliers Introduction 7.1. Design 7.2.Common types 7.2.1 Gripping pliers (used to improve grip) 7.2 2.Cutting pliers (used to sever or pinch off) 2 7.2.3 Crimping pliers 7.2.4 Rotational pliers 8. Common wrenches / spanners 8.1 Other general wrenches / spanners 8.2. Spe cialized wrenches / spanners 8.3. Spanners in popular culture 9. Hacksaw, surface plate, surface gauge, , vee-block, files 10. -
FIELD EXTENSIONS and the CLASSICAL COMPASS and STRAIGHT-EDGE CONSTRUCTIONS 1. Introduction to the Classical Geometric Problems 1
FIELD EXTENSIONS AND THE CLASSICAL COMPASS AND STRAIGHT-EDGE CONSTRUCTIONS WINSTON GAO Abstract. This paper will introduce the reader to field extensions at a rudi- mentary level and then pursue the subject further by looking to its applications in a discussion of some constructibility issues in the classical straight-edge and compass problems. Field extensions, especially their degrees are explored at an introductory level. Properties of minimal polynomials are discussed to this end. The paper ends with geometric problems and the construction of polygons which have their proofs in the roots of field theory. Contents 1. introduction to the classical geometric problems 1 2. fields, field extensions, and preliminaries 2 3. geometric problems 5 4. constructing regular polygons 8 Acknowledgments 9 References 9 1. Introduction to the Classical Geometric Problems One very important and interesting set of problems within classical Euclidean ge- ometry is the set of compass and straight-edge questions. Basically, these questions deal with what is and is not constructible with only an idealized ruler and compass. The ruler has no markings (hence technically a straight-edge) has infinite length, and zero width. The compass can be extended to infinite distance and is assumed to collapse when lifted from the paper (a restriction that we shall see is irrelevant). Given these, we then study the set of constructible elements. However, while it is interesting to note what kinds objects we can create, it is far less straight forward to show that certain objects are impossible to create with these tools. Three famous problems that we will investigate will be the squaring the circle, doubling the cube, and trisecting an angle. -
Panama’S Illegal Rosewood Logging Boom from Dalbergia Retusa
Global Ecology and Conservation 23 (2020) e01098 Contents lists available at ScienceDirect Global Ecology and Conservation journal homepage: http://www.elsevier.com/locate/gecco Original Research Article Panama’s illegal rosewood logging boom from Dalbergia retusa * Ella Vardeman a, b, d, , Julie Velasquez Runk a, c a University of Georgia, Athens, GA, 30602, USA b City University of New York, Graduate Center, 365 5th Ave, New York, NY, 10016, USA c Smithsonian Tropical Research Institute, Balboa, Panama d The New York Botanical Garden (NYBG), Institute of Economic Botany, 2900 Southern Boulevard, Bronx, NY 10458, USA article info abstract Article history: Over the last decade, illegal rosewood logging has surged worldwide, with much attrib- Received 9 December 2019 utable to an uptick in Chinese demand. For the last seventy-five years, Panama’s main use Received in revised form 30 April 2020 of cocobolo rosewood (Dalbergia retusa) was in small pieces for artisanal carvings, its state Accepted 30 April 2020 of conservation favoring merchantable timber for recent exploitation with the surging market. Panama’s cocobolo rosewood boom was from 2011 to 2015 and, given regulations, Keywords: was largely illicit. However, no data on cocobolo logging have been made public. Here, we Dalbergia retusa assess Panama’s cocobolo logging. We used a media analysis of Panamanian and inter- Panama Media analysis national reports on cocobolo logging from January 2000 to February 2018 coupled with Illegal logging long-term socio-environmental research to show how logging changed during the boom. We conducted a content analysis of articles to address four specific objectives: 1) to assess how cocobolo logging intensity changed over time; 2) to determine what topics related to logging were important for the press to relay to the public; 3) to show how logging changed geographically as the boom progressed; 4) to demonstrate how Panama and the international community responded to the global boom with new policies on rosewood governance. -
Marking Gauge
Online Extra accurate layouts with a Marking Gauge When it comes to fast and accurate layouts, this traditional tool will more than earns its keep in the woodworking shop. Thumb If I were to make a list of the If you take a look at the various the amount of brass details used screw most-used tools in my shop, the marking gauges being sold today, in the construction. The more marking gauge would be you’ll notice two distinct types. expensive gauges have brass thumb near the top. Even with the Some use a steel pin to scribe a line myriad of rulers, calipers, while others use a flat blade. This and digital measuring second type is often called a “cut- devices that are available ting gauge” because the blade slices today, it’s hard to beat this the wood fibers rather than tearing simple tool for accuracy them, like the pin-style marking and ease of use. gauges (see photos at right). Of the two, I prefer the blade-style gauge. Blade Wedge It scores a cleaner, crisper line. DESIGN. A marking gauge is one of those simple tools whose basic design hasn’t changed much over the years. It has a beam and an adjustable fence (or stock) that is Brass wear strip held in place with a thumb screw, or sometimes, a wedge. Fence The only other differences you’re (or stock) Beam likely to find between the various { A marking gauge (top) tears gauges on the market have to do its way across the wood, while with the level of fit and finish and a cutting gauge scores a line.