13 Wood Joinery Types
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Dado Blade BASICS Dead-On Dadoes, Grooves, and Rabbets Are Easy to Cut When You Know Which Type of Dado Blades to Buy and How to Use Them
TOOLS & TECHNIQUES SERIES Plans NOW® www.plansnow.com Dado Blade BASICS Dead-on dadoes, grooves, and rabbets are easy to cut when you know which type of dado blades to buy and how to use them. WOBBLE DADO A single blade riding on a hub. hile one of the most One downside of a wobble It adjusts for different widths. useful tools for cut- blade is that it may leave a cut Wting joints is a dado with a concave bottom. This can blade, selecting which type to be reduced by using a V-blade. It’s buy can be a little bit confusing. still a wobble-style, but instead it To simplify it, all you need to has two blades mounted on a hub. know is that dado blades fall into Adjusting the hub pushes the three distinct categories: “wob- blades apart at one edge, creating V-BLADE DADO ble” blades, “V-blades,” and a “V” that cuts a wide kerf. “stack” sets. Okay, now let’s get to my Two blades riding on a center Wobble blades have a single favorite:a stack dado set.It’s made hub, also adjustable. 1 blade that rides on a hub. The up of two /8"-thick outer blades hub has a couple of wedge- (trimmers) with additional chip- shaped adjusters in it. As you per blades that can be sand- adjust the position of the wedges, wiched between the trimmers to the blade actually tilts at an angle make wider cuts. to the saw’s arbor.And, when you Stack sets take a little more turn the saw on, the blade “wob- care in setting up, but the dadoes STACK DADO bles” back and forth to make a and grooves they cut will have wide cut — a dado, groove, or clean, flat bottoms with little Outer blades with chipper rabbet. -
Analysis and Strengthening of Carpentry Joints 1. Introduction 2
Generated by Foxit PDF Creator © Foxit Software Branco, J.M., Descamps, T., Analysis and strengthening http://www.foxitsoftware.comof carpentry joints. Construction andFor Buildingevaluation Materials only. (2015), 97: 34–47. http://dx.doi.org/10.1016/j.conbuildmat.2015.05.089 Analysis and strengthening of carpentry joints Jorge M. Branco Assistant Professor ISISE, Dept. Civil Eng., University of Minho Guimarães, Portugal Thierry Descamps Assistant Professor URBAINE, Dept. Structural Mech. and Civil Eng., University of Mons Mons, Belgium 1. Introduction Joints play a major role in the structural behaviour of old timber frames [1]. Current standards mainly focus on modern dowel-type joints and usually provide little guidance (with the exception of German and Swiss NAs) to designers regarding traditional joints. With few exceptions, see e.g. [2], [3], [4], most of the research undertaken today is mainly focused on the reinforcement of dowel-type connections. When considering old carpentry joints, it is neither realistic nor useful to try to describe the behaviour of each and every type of joint. The discussion here is not an extra attempt to classify or compare joint configurations [5], [6], [7]. Despite the existence of some classification rules which define different types of carpentry joints, their applicability becomes difficult. This is due to the differences in the way joints are fashioned depending, on the geographical location and their age. In view of this, it is mandatory to check the relevance of the calculations as a first step. This first step, to, is mandatory. A limited number of carpentry joints, along with some calculation rules and possible strengthening techniques are presented here. -
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. -
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. -
Butt Joint and Fastener Finishing Guidelines Issue 2
________________________________________________________________________ TECHNICAL BULLETIN No.: 042314-1007 Subject: Butt Joint and Fastener Finish Guideline Issue Date: April 23, 2014 Issue No.: 1 1.0 PURPOSE 1.1 To provide a butt joint and fastener preparation guideline. 2.0 GENERAL 2.1 Magnum Board® can be finished with almost any product on the market today including, but not limited to, Portland type stuccos, synthetic stuccos, stone, brick, fabric finishes and paint. 2.2 When using these products, always follow the Manufacturer’s guidelines for surface preparation and installation. 3.0 RESPONSIBILITY 3.1 It is the responsibility of the installer to ensure the framing to which the Magnum Board® sheathing is to be fastened is square and will provide the finished look desired by the owner and / or contractor. 3.2 It is also the responsibility of the applicator of the above finish product to ensure the installed Magnum Board® is properly prepared to receive the selected finish. 4.0 MATERIAL HANDLING REQUIREMENTS 4.1 Stage materials as close to the point of installation as possible. 4.2 Store Magnum Board® flat and protect it from weather and jobsite dirt before, during and after installation. 4.3 Protect the corners of Magnum Board® prior to and during installation. 4.4 Do not stack other materials on top of Magnum Board®. 1 5.0 MATERIAL REQUIREMENTS 5.1 Premium-grade, high-performance, moisture-cured, 1-component, polyurethane-based, non-sag elastomeric sealant / adhesive such as “Sikaflex 1a” or equal. 5.2 Joint compound. Lightweight exterior spackling can be substituted for fastener finishing. 5.3 Fiberglass joint taper, woven. -
Fasteners Set the Industry's Highest Standards for Design, Ease of Use, and Reliability
Keeping your belt up and running SINCE 1907 HEAVY-DUTY MECHANICAL BELT FASTENING SYSTEMS A comprehensive line of mechanical belt fastening systems and belt conveyor maintenance tools that increase uptime and output. Around the world, the most respected name in belt conveyor solutions is Flexco. YOUR PARTNER IN The reason is simple. Flexco belt splicing products have earned the reputation for unsurpassed quality and performance in the most demanding material handling PRODUCTIVITY applications on earth. Our fasteners set the industry's highest standards for design, ease of use, and reliability. The knowledgeable advice and proven solutions we provide our customers help keep conveyor efficiency high and conveyor operation costs low. QUICK FACTS OVER 100 YEARS OF SUCCESS ABOUT FLEXCO • Flexco is a U.S.-based company and HAS BEEN BUILT has been in the belt industry since 1907. BY FOCUSING ON OUR • We have subsidiary locations in Australia, Chile, China, Germany, India, Mexico, Singapore, South Africa, and CUSTOMERS the United Kingdom to service and support customers in more than 150 countries around the world. We have learned to understand our customers' • We have more than 1800 distributor industries and challenges and to respond to their partners throughout the world—we changing needs. partner with the best distributors in We are constantly driving technology and design and every market we serve around the world to ensure our customers have strive to become the leader in belt conveyor solutions that ready access to our products, services, maximize uptime, productivity, and safety. and expert resources. We value industry relationships and believe that together, with a team of industry experts, our customers will • As a company, we focus on training and development and maintaining a receive greater value. -
Product Data
PRODUCT DATA Date: 20 March 2005 Information Sheet No.: ZE0197 EVO-STIK WOOD ADHESIVE WEATHERPROOF CROSSLINKING PVA ADHESIVE Evo-Stik Wood Adhesive Weatherproof is a one part water-resistant synthetic resin emulsion adhesive for general bonding of wood assemblies for non-structural applications. It has suitable properties for internal use and for protected external use. Evo-Stik Wood Adhesive Weatherproof is non-flammable, freeze/thaw stable, dries translucent, and meets EN 204 D3 & BS 4071: 1966 that the wet adhesive is carried into the socket MATERIALS BONDED/APPLICATIONS when assembly takes place. Wood which has Evo-Stik Wood Adhesive Weatherproof may be been stored in a cold or humid environment used for the assembly of frames for doors, should be allowed to condition in the workshop windows, drawers, etc. It is suitable for making atmosphere before bonding. mortice and tenon, dowelled, and other standard woodworking joints. It is also suitable for bonding 3. Assemble the parts while the adhesive wood veneers and laminated plastics to wood or film is still wet. The maximum open assembly chipboard cores. time depends on the substrate porosity and ambient temperature, but generally falls within Evo-Stik Wood Adhesive Weatherproof may also the range of 10 to 25 minutes. be used for bonding other materials such as rigid PVC or aluminium edge trim sections to 4. When the parts have been assembled, recessed wood for internal use. maintain light pressure on the bond line during the initial setting period, using equipment such as NOTE: It is unsuitable for assemblies vices, jigs, clamps. Dead loads may be used but continuously immersed in water, and applications are less efficient that clamping devices. -
Effect of Different Veneer-Joint Forms and Allocations on Mechanical Properties of Bamboo-Bundle Laminated Veneer Lumber
PEER-REVIEWED ARTICLE bioresources.com Effect of Different Veneer-joint Forms and Allocations on Mechanical Properties of Bamboo-bundle Laminated Veneer Lumber Dan Zhang, Ge Wang,* and Wenhan Ren Bamboo-bundle laminated veneer lumber (BLVL) was produced by veneer lengthening technology. The objective of this study was to evaluate the effect of different veneer-joint forms and allocations on the mechanical properties of BLVL. Four veneer-joint forms, i.e., butt joint, lap joint, toe joint, and tape joint, and three lap-joint allocations, i.e., invariable allocation (Type I), staggered allocation (Type II), and uniform allocation (Type III), were investigated in laminates. The results revealed that the mechanical properties of veneer-joint BLVL were reduced in comparison with that of un-jointed BLVL. It was found that the best veneer-joint form was the lap joint laminate, of which the tensile strength, modulus of elasticity, and modulus of rupture values were reduced by 38.41%, 0.66%, and 10.92%, respectively, when compared to the un- jointed control samples. Type III showed the lowest influence on bending and tensile properties, followed by Type II. Keywords: Bamboo-bundle laminated veneer lumber; Joint forms; Mechanical properties; Joint allocations Contact information: International Centre for Bamboo and Rattan, Beijing, P.R. China, 100102; * Corresponding author: [email protected] INTRODUCTION As wood resource availability declines and its demand increases in today’s modern industrialized world, it is important to explore new, sustainable building materials. In particular, bamboo has recently been recognized as a promising alternative raw material due to its abundance, fast growth rate, and high tensile strength (Jiang et al. -
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. -
Inspection of Wooden Vessels
Guidance on Inspection, Repair, and Maintenance of Wooden Hulls ENCLOSURE (1) TO NVIC 7-95 COMPILED BY THE JOINT INDUSTRY/COAST GUARD WOODEN BOAT INSPECTION WORKING GROUP August 1995 TABLE OF CONTENTS ACKNOWLEDGEMENTS A-1 LIST OF FIGURES F-1 GLOSSARY G-1 CHAPTER 1. DESIGN CONSIDERATIONS A. Introduction 1-1 B. Acceptable Classification Society Rules 1-1 C. Good Marine Practice 1-1 CHAPTER 2. PLAN SUBMITTAL GUIDE A. Introduction 2-1 B. Plan Review 2-1 C. Other Classification Society Rules and Standards 2-1 D. The Five Year Rule 2-1 CHAPTER 3. MATERIALS A. Shipbuilding Wood 3-1 B. Bending Woods 3-1 C. Plywood. 3-2 D. Wood Defects 3-3 E. Mechanical Fastenings; Materials 3-3 F. Screw Fastenings 3-4 G. Nail Fastenings 3-5 H. Boat Spikes and Drift Bolts 3-6 I. Bolting Groups 3-7 J. Adhesives 3-7 K. Wood Preservatives 3-8 CHAPTER 4. GUIDE TO INSPECTION A. General 4-1 B. What to Look For 4-1 C. Structural Problems 4-1 D. Condition of Vessel for Inspection 4-1 E. Visual Inspection 4-2 F. Inspection for Decay and Wood Borers 4-2 G. Corrosion & Cathodic Protection 4-6 H. Bonding Systems 4-10 I. Painting Galvanic Cells 4-11 J. Crevice Corrosion 4-12 K. Inspection of Fastenings 4-12 L. Inspection of Caulking 4-13 M. Inspection of Fittings 4-14 N. Hull Damage 4-15 O. Deficiencies 4-15 CHAPTER 5. REPAIRS A. General 5-1 B. Planking Repair and Notes on Joints in Fore and 5-1 Aft Planking C. -
Learner Support Material: Civil Technology Woodworking: Grade 11
EC - LEARNER SUPPORT MATERIAL: CIVIL TECHNOLOGY WOODWORKING: GRADE 11 CONTENT TO BE COVERED: TOPICS: 1. JOINING (Generic) + (SPECIFIC) Identify and explain the use of: • Bolts and nuts • Rawl bolts • Plastic plugs • Rawl plugs Methods of joining the following items: Alternate methods of fixing window panes onto casement members and fixed frames. Application, uses and drawings of the following woodworking joints (exploded and assembled views): • Haunched mortise and tenon joint • Twin mortice and tenon joint • Double bare face tenon 2. CASEMENT (Specific) Sketch of vertical section through the transom, bottom rail of fanlight and top rail of casement with glass and putty in position Identification of parts and the drawing of the external elevation of a double casement with fanlights and two horizontal glazing bars in the casement within a frame 3. DOORS(Specific) External doors: Application, drawing of front elevations, horizontal and vertical sections and constructional details of the following doors: • Three panel door with raised and fielded panels with high lock rail • Four panel door with low lock rail, raised panels and diminishing stile • Framed ledge, brace batten doors with lock and bottom rails 22 mm thick Application, drawing of front elevations, horizontal and vertical sections and constructional details of an entrance door with a shaped top rail and fixed sidelights within a frame. Sketches showing differentiation between a door frame and jamb lining 4. WALL PANELLING AND CUPBOARDS (Specific) a) Front elevation and vertical section showing methods of installing strip boards (tongue and groove boards) as wall panelling from floor to ceiling. b) A horizontal section showing how the joint between two strip boards are joined. -
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.