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Twin-Blade Joinery the Fast Way to Make Perfect Tenons and Tongues on the Tablesaw
Twin-Blade Joinery The fast way to make perfect tenons and tongues on the tablesaw By Paul Anthony Joinery is probably the most exacting aspect of woodworking. It’s where stock around on your tenon jig to saw the thousandths of an inch matter. No kidding. oppositecut tenons cheek. is to sawThe oneproblem cheek, with then this flip is the that If a tenon, for example, is even .004" (the any inconsistency in your stock thickness thickness of a dollar bill) thinner than translates into inconsistency in your tenon its mating mortise, the joint’s strength thickness. As you’ll see, twin-blade joinery has been compromised, no matter how solves this problem, eliminating the need to well glue appears to hold it together. Because cutting joints can be fussy and The technique is just as effective at cutting time-consuming, it makes sense to take accuratefine-tune tongues the tenon on thickness panel edges for forfinal the fitting. same reason. Although a different principle This is where twin-blade joinery comes applies, twin-blade joinery is also the perfect in.advantage By stacking of any two efficiencies identical blades where together, you can. approach to cutting double spline slots. you can reduce the time it takes to cut tenons, All the technique requires is two identical tongues, and other joints with parallel saw blades and some shop-made spacers. faces. At the same time, you’re ensuring The small expense pays off big time, as accuracy. For example, a common way to you’ll find once you try the method. -
Understanding Western Backsaws
Understanding Western Backsaws The Western backsaw has almost vanished. But a few toolmakers are trying to turn back the clock to when this One of the earliest tool catalogs we have, “Smith’s Key,” shows the four types The saw on the bottom is a typical pistol-grip dovetail saw from sawmaker of backsaws available in 1816 from makers in Sheffield, England. Note how Mike Wenzloff of Wenzloff & Sons. Also shown (at top) is a straight-handled saw was in every toolbox. this tool catalog shows the blades as tapered – they are narrower at the toe dovetail saw known as a gent’s saw, so named (we’re told) because it was than at the heel. There’s a likely reason for that. used by gentlemen hobbyist woodworkers in the 19th century. Why Use Western Handsaws? For some woodworkers, the above reasons blade is straight up and down. However, using The backsaws that built nearly every piece of If you do the math, mass-produced high-qual- are a compelling reason to use Western saws. a straight-handled “gent’s saw” isn’t difficult. It antique English and American furniture almost ity Japanese saws are a bargain. You can buy a If you are one of those, read on. If you still pre- just takes a little more getting used to. became extinct, thanks to the universal motor and Japanese dovetail saw for $35 that works just as fer Japanese saws and want to learn more about The teeth of a dovetail saw are quite fine, the Japanese obsession with quality. -
Demystifying the Traditional Backsaw © 2014, by Mark D
Demystifying the Traditional Backsaw © 2014, by Mark D. Harrell Introduction Introduction Talking Points • Is it worth saving? • Disassembly • Cleaning • Handle Work • Reassembly & retensioning • Truing up • Clock-sharpening • Safety • The Continuum of a Toothline Is it worth saving? • Pitting (know when it’s too bad • Badly bent sawbacks • Handle repair (you be the judge) • Sentimental value • Handsaw flex test 9 times out of ten, the traditional folded sawback saves the saw Disassembly • Leather-lined wood clamp • Angle iron • 12” mill file • Sharpening files • Dead-blow mallet • Stout screwdriver • Small crowbar • Ruler • Sharpie • Brass hammer • Leather patches • Canning wax • Whetstone • Masking tape • Stout vise These are tools you’ll likely have in your shop already Disassembly (cont.) Step 1: this is how we get our frozen nuts off in Wisconsin. It doesn’t even have to be winter. Disassembly (cont.) Step 2: lay your handle aside—secure your fasteners inside the pistol grip so they don’t get lost. Disassembly (cont.) Step 3: cinch your plate/back assembly into a your leather-lined angle iron and pry of back with crowbar. “Warning, Will Robinson! don’t do this with static backs!” Disassembly (cont.) Step 3a: know the difference between a static back and a traditional folded back—again, don’t attempt to pull off a static-back or you’ll ruin your saw. More on this later. Disassembly (cont.) Step 4: repeat this procedure gradually, then pull off back. Disassembly (cont.) Completely disassembling a traditional backsaw is no different than disassembling a hand plane; easier, in fact. Typical Cleaning Supplies (what Bad Axe Uses, anyway!) • Sunshine Polishing cloths • 3M Abrasive Pads • Cordless Dremel • Sandflex Eraser blocks • Plastic Safety Razor • Brass toothbrush • Dental Pick • Exacto Knife • Wizard's Power Seal • Nitrile Gloves • Spraybees • Wizard's Metal • Renew • Dust mask(s) & safety goggles • Dry t-shirt/cloth diaper cloth • Your child's old toothbrush. -
What's a Dado Anyway?
What’s A Dado Anyway? hen we first found the thing back The dado found on Nikumaroro has a Win 1989 we took it to be the cover number of features which make it particularly of some kind of box. Although it didn’t interesting: look much like an airplane part it was, 1. Although evidently used in what appeared at least, made of aluminum and, at the to be the village’s carpentry shop as a sur- Research In Progress Research In Progress Research In Progress end of a grueling expedition which had face to hammer upon, it was never cut apart, found little else, that was good enough. broken or even seriously bent. Alone among In the catalogue of artifacts from NIKU I, acces- the various pieces of aircraft debris found sion number 2-18 is described as “aluminum on the island to date, 2-18 is a complete plate with riveted bands on edges; part of box?” structure, and yet nowhere does it carry a found at “Karaka village, Ritiati, structure 17 part number. (carpenter’s shop?).” After six years of research 2. Identical pry marks at each of the holes we’re now able to provide a somewhat better in the right angle bend suggest that it was description. originally attached with nails to wooden TIGHAR Artifact 2-18 is a structure known flooring. in aviation parlance as a “dado.” An internal fixture rather than part of the airframe, a dado 3. Several modifications made to the structure is a panel (often insulated) which covers and suggest that it was installed in a different protects the juncture of the aircraft’s cabin location and served a slightly different flooring and the fabric-covered interior wall. -
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. -
Bahco® Superior Backsaw with Xt Toothing Bahco
BAHCO® SUPERIOR BACKSAW WITH XT TOOTHING Ergo™ handle - Unique XT toothing - Low Friction Coating Product Code Blade Length (Inch) Teeth Per Inch (TPI) Type of cut 3180-14-XT11-HP 14 11 Fine Features • Specially adapted for cutting of small-diameter timber and miter guide sawing of all sizes of materials 3180-14-XT11-HP • Bevel ground teeth on thick blade for high precision and straight cutting with exceptionally good stability • Screwed, one piece two-component Ergo™ handle • Handle placement provides even distribution of power along the tooth line • Comes with reusable plastic patented tooth protector BAHCO® PROFCUT BACKSAW For Straight and Miter Cuts HANDSAWS Product Code Blade Length (Inch) Teeth Per Inch (TPI) PC-12-TEN 12 11 Features • Specially adapted for cutting of small-diameter timber and miter guide PC-12-TEN sawing of all sizes of materials • Fine UT toothing with 11 TPI • The universal toothing is strong and hard wearing, suitable for both rip and cross cutting in all types of wood • 3-sided ground tooth form ensures excellent results in all types of wood THE TRADES THE • Comfortable-two component handle FOR TOOLS • Comes with reusable plastic patented tooth protector BAHCO® PRIZECUT BACKSAW Product Code Blade Length (Inch) Teeth Per Inch (TPI) NP-12-TEN 12 13 Features NP-12-TEN • Specially adapted for cutting of small-diameter timber and miter guide sawing, all sizes of materials • The universal toothing is strong and hard wearing, suitable for both rip and cross cutting in all types of wood • Hard Point for longer life, -
Dado & Accessories
20-73 pages 8-28-06 8/30/06 11:21 AM Page 63 Dado Sets & Saw Blade Accessories Dado Sets 63 Whether you’re a skilled professional or a weekend hobbiest, Freud has a dado for you. The SD608, Freud’s Dial-A-Width Dado, has a patented dial system for easy and precise adjustments while offering extremely accurate cuts. The SD300 Series adds a level of safety not found in other manufacturers’ dadoes, while the SD200 Series provides the quality of cuts you expect from Freud, at an attractive price. 20-73 pages 8-28-06 8/30/06 11:21 AM Page 64 Dial-A-Width Stacked Dado Sets NOT A 1 Loosen SD600 WOBBLE Series DADO! 2 Turn The Dial 3 Tighten Features TiCo™ High Dado Cutter Heads Density Carbide Crosscutting Blend For Maximum Performance Chip Free Dadoes In Veneered Plywoods and Laminates The Dial-A-Width Dado set performs like a stacked dado, but Recommended Use & Cut Quality we have replaced the shims with a patented dial system and HARDWOOD: with our exclusive Dial hub, ensures accurate adjustments. SOFTWOOD: Each “click” of the dial adjusts the blade by .004". The Dial- A-Width dado set is easy to use, and very precise. For the CHIP BOARD: serious woodworker, there’s nothing better. PLYWOOD: • Adjusts in .004" increments. 64 LAMINATE: • Maximum 29/32" cut width. NON-FERROUS: • Adjusts easily to right or left operating machines. • Set includes 2 outside blades, 5 chippers, wrench and Application CUT QUALITY: carrying case. (Not recommended for ferrous metals or masonry) • Does not need shims. -
VET Job Guide
NSW Department of Education Carpenter and Joiner Carpenters and joiners love working their hands to construct, erect, install, and repair structures made of wood. You’ll get great satisfaction Will I get a job? out of seeing your finished work enliven a home or building. Moderate growth in this occupation is predicted, with 200 What carpenters and joiners do new jobs in Australia in the next four years, Carpenters and joiners use their broad knowledge of building methods and timbers to bringing the total to make, install, repair or renovate structures, fixtures and fittings. They work on residential 117,800. and commercial projects constructing buildings, ships, bridges or concrete formwork, and in maintenance roles in factories, hospitals, institutions, and homes. What will I earn? On residential jobs, carpenters and joiners build the house framework, walls, roof frame, $951–$1,100 median and exterior finish. They install doors, windows, flooring, cabinets, stairs, handrails, full-time weekly salary panelling, moulding, and ceiling tiles. On commercial construction jobs, they build (before tax, excluding concrete forms, scaffolding, bridges, trestles, tunnels, shelters, towers or repair and super). maintain existing structures. Shop fitter, joiners, fixers or finish carpenters create wood furniture, window and door fittings, parquet floors and stairs for new homes and renovation projects. They may also create and sell their own furniture. Joiners are mostly based in workshops while carpenters often travel between sites until each job is completed. Carpenters may work as subcontractors employed by building and construction companies or are self-employed. education.nsw.gov.au NSW Department of Education You’ll like this job if… Roles to look for You enjoy creating things with your hands. -
Carpentry, Culinary Arts Instructor Guide and Curriculums. Bilingual Vocational Education Program
DOCUMENT RESUME ED 288 104 CE 049 167 AUTHOR Densmore, Roxanne T. TITLE Carpentry, Culinary Arts Instructor Guide and Curriculums. Bilingual Vocational Education Program. INSTITUTION Crownpoint Inst. of Technology, NM. SPONS AGENCY Office of Vocational and Adult Education (ED), Washington, DC. PUB DATE 87 GRANT G008620033 NOTE 369p. PUB TYPE Guides Classroom Use Guides (For Teachers) (052) EDRS PRICE MF01/PC15 Plus Postage. DESCRIPTORS *American Indian Education; Behavioral Objectives; *Bilingual Education; *Carpentry; Competency Based Education; *Cooking Instruction; Language Skills; Learning Activities; Lesson Plans; Mathematics Skills; Occupational Home Economics; Student Evaluation; Student Placement; Trade and Industrial Education; *Vocational English (Second Language) IDENTIFIERS *Navajo (Nation) ABSTRACT This guide is intended to assist vocational English as a second language (VESL) instructors in teaching courses in carpentry and the culinary arts to residents of Navajo reservations. The first section outlines the rationale and content of the two training programs as well as the basic VESL objectives that they seek to address. The next section, a VESL learning guide, discusses the main principles of the ESL method, learning characteristics of ESL students, the ESL learning environment, curriculum development, teaching techniques (including survival and competency-based methods, the notional-functional approach, use of the world outside the classroom, and total physical response), student assessment, and placement levels. Educational goals and curriculum design are covered next. The carpentry curriculum includes 25 units that are intended to provide students with hands-on and classroom instruction in the identification, proper handling, care, and maintenance of trade tools and equipment; the fundamental processes and techniques of the carpentry trade; applicable codes and safety practices; and blueprint reading and job estimation techniques. -
Creating a Timber Frame House
Creating a Timber Frame House A Step by Step Guide by Brice Cochran Copyright © 2014 Timber Frame HQ All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, recording or otherwise, without the prior written permission of the author. ISBN # 978-0-692-20875-5 DISCLAIMER: This book details the author’s personal experiences with and opinions about timber framing and home building. The author is not licensed as an engineer or architect. Although the author and publisher have made every effort to ensure that the information in this book was correct at press time, the author and publisher do not assume and hereby disclaim any liability to any party for any loss, damage, or disruption caused by errors or omissions, whether such errors or omissions result from negligence, accident, or any other cause. Except as specifically stated in this book, neither the author or publisher, nor any authors, contributors, or other representatives will be liable for damages arising out of or in connection with the use of this book. This is a comprehensive limitation of liability that applies to all damages of any kind, including (without limitation) compensatory; direct, indirect or consequential damages; income or profit; loss of or damage to property and claims of third parties. You understand that this book is not intended as a substitute for consultation with a licensed engineering professional. Before you begin any project in any way, you will need to consult a professional to ensure that you are doing what’s best for your situation. -
Blocks Weeds* up to 3 Months Guaranteed!
Blocks Weeds* Up To 3 Months Guaranteed! GARDEN Not for Use on Lawns STOP WEEDS* Before They Start! Precautionary Statements Hazards to Humans and Domestic Animals CAUTION Causes moderate eye irritation. Wear protective eyeware. Harmful if swallowed, inhaled or absorbed through the skin. Avoid contact with eyes, skin or clothing. Users should remove clothing immediately if pesticide gets inside. Then wash thoroughly and put on clean clothing. Prolonged or frequently repeated skin contact may cause allergic reaction in some individuals. Wash hands before eating, drinking, chewing gum, using tobacco or using the toilet. User Safety Recommendations • Users should wash hands before eating, drinking, chewing gum, using tobacco, or using the toilet. • Users should remove clothing immediately if pesticide gets inside. Then wash thoroughly and put on clean clothing. First Aid • Hold eye open and rinse slowly and gently with water for 15-20 minutes. Remove í para abrir | Presione volver a cerrar IF IN EYES: contact lenses, if present after the first 5 minutes, then continue rinsing eye. • Call a poison control center or doctor for treatment advice. • Call a poison control center or doctor immediately for treatment advice. Levante aqu IF SWALLOWED: • Have person sip a glass of water if able to swallow. • Do not induce vomiting unless told to do so by a poison control center or doctor. • • Do not give anything by mouth to an unconscious person. IF ON SKIN • Take off contaminated clothing. • Rinse skin immediately with plenty of water for 15-20 minutes. OR CLOTHING: • Call a poison control center or doctor for treatment advice. -
Measurement and Modeling of the In-Plane Permeability of Oriented Strand-Based Wood Composites
MEASUREMENT AND MODELING OF THE IN-PLANE PERMEABILITY OF ORIENTED STRAND-BASED WOOD COMPOSITES by Chao Zhang B.Sc., Tsinghua University, 2006 A THESIS SUBMITTED IN PARTIAL FULFILMENT OF THE REQUiREMENTS FOR THE DEGREE OF MASTER OF SCIENCE in The Faculty of Graduate Studies (Forestry) THE UNIVERSITY OF BRITISH COLUMBIA (Vancouver) April 2009 © Chao Zhang, 2009 Abstract The objective of this research is to investigate the effects of panel density and air flow direction on the in-plane permeability of oriented strand-based wood composites. In- plane permeability is a key factor governing the energy consumption and pressing time during manufacture. The result is expected to provide information which could potentially reduce the pressing time. The thick, oriented strand boards of five densities were made of aspen (Populus tremuloides), and pressed in the laboratory. The production procedure yielded a uniform vertical density profile and good strand orientation. The specimens were sealed in a specially designed specimen holder and connected to a permeability measurement apparatus. The permeability values in parallel, perpendicular, and 45° to the strand orientation were obtained. The results showed that permeability values decreased rapidly as the density increased. The permeability was highest in the parallel-to-strand direction, and lowest in the perpendicular-to-strand direction. The permeability value in 45° direction was between the values of parallel- and perpendicular-to-strand directions. A polynomial equation was fitted to the results and an R2 was between 0.93 8 and 0.993. To examine the void structure changes during the densification, microscopic techniques were employed. Microscopic slides for each density level were prepared with a typical method widely used for petrography, and then investigated with a fluorescence microscope.