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Sunday, 6 August 2017

Kreg Accu-Cut Turns any Circ Saw Into a Track Saw

Author
by David Lyell
page 16
In my shop, the track saw doubles as a second table saw – and if you’d like a low-priced alternative to a track saw, consider Kreg’s newest offering: the Accu-Cut Circular Saw Guide System. This jig uses set screws to attach a sled to the top of just about any non-worm-drive circular saw shoe (left- or right-hand blade) to allow it to perform like a track saw.
The kit includes two 24″ tracks that provide a 48″ rip capability when coupled. A “starting block” provides a steady platform for your saw before the cut begins. There is, however, no option to extend the track length to 96″ – for that, Kreg’s Rip-Cut jig, is a convenient option because they share the same sled.
The Accu-Cut’s “guide strip” forms a zero-clearance fit with the blade after your first pass along the track. When equipped with the recommended 40-tooth blade, I had virtually no tear-out on 34“-thick veneered plywood. But I did experience some slight flex between the saw, sled and track that resulted in a slight bevel. The Accu-Cut is suited for breaking down sheet goods, not for making finish cuts (arguably true for any track saw in most fine furniture applications).
From the October 2017 issue, #234

For further information log on website :
http://www.popularwoodworking.com/articleindex/kreg-accu-cut-turns-circ-saw-track-saw-3

Woodworking Projects

The Basics of Cabinet Making
Hearing that someone is a cabinetmaker tends to bring respect for the woodworking skills of the person described. That's as it should be, but the skills are neither arcane, nor impossible for the average woodworker to gain. After all, most of us feel anyone can make a good box and cabinets are really nothing more than big boxes. Size imposes some extra demands, and limits, but otherwise, cabinetmaking is box making enlarged.

Cabinetmaking as a skill set has so many facets that almost any woodworker with a decent level of interest, and a modest number of tools, can become competent in some part of the field. Overall competence takes longer, of course, but learning to make shop cabinets is a good scheme for starting on the acceptably easy end. After all, if you mess up, they're only shop cabinets. Or you can start with a simple rolling cabinet for tools, or other of life's necessities, such as a kitchen island or rolling kitchen or tool support cabinet.

Square It Up

Until cabinetmaking progresses into furniture making, the joints remain fairly simple: the hardest requirement is to make absolutely certain that all measurements are accurate and all corners are square. Basically, that means your first need in making cabinets is to go through your shop and make sure all tools are squared away. Check the table saw to make sure the fence is parallel to the saw blade, which you will already have checked to make sure it is parallel to the miter slot. Make sure, too, that each time the fence is locked it remains parallel to the blade. Check the verticality of the blade at this point. An engineer's level is excellent for this purpose, ensuring accuracy because you base everything on that 90° and the parallelism to the fence. Check the fence face, too. Check next for accuracy at a 45°. Make sure the fence face is 90° to the saw's table surface.
"Standard cabinet making is based on the right angle. If you get that 90° correct, measure other angles and distances carefully, and don't slop up the assembly, you are going to make some good, solid cabinets."
Repeat the process with the jointer fence, making sure it locks at 90° and stays there during use, doesn't sag away or creep), as it also must at 45°.

Another set-up repetition comes with your compound miter saw. Get it square and then check intermediate angle settings for accuracy.

Most good tools remain accurate for a considerable length of time after the original work of setting them up. Some will be obviously off in short order, but with others, you may not notice until you've wasted wood. Keeping a small engineer's square in an apron pocket is a good way to prevent problems. Check every few days to see that settings that claim to be square really are still 90° You'll quickly learn which of your tools are most likely to slip out of adjustment most often. Among these you'll find the radial arm saw and the compound miter saw.

At this point, you want to review all you've ever heard about getting smooth cuts with the various types of saw blades. Working with face frames calls for a top grade 24 to 30 tooth finish rip blade. Working with laminates and MDF and similar manufactured materials requires a superb laminate cutting blade, one that resists the abrasive action of the adhesives in the manufactured wood products and the resins in the laminates. Fortunately, most of today's blades are carbide tipped, because that is what you absolutely need for cutting particleboard and MDF, and for slicing laminates. Carbide teeth also last a lot longer in regular use than does high speed steel so that high speed steel blades are now used mostly in special circumstances (when nails or other metals might be found in the wood being cut, for example).

Get Ready

Check your blades and make sure they're sharp, free of gum and pitch, and ready to go. Measuring and marking tools come next. The tips here are handy for all types of projects, as well as for making cabinets, so you might want to file them away:
  • Use the shortest tape measure the job requires (obviously, you're not going to use a 10' tape measure to work out cabinet dimensions for a 28' kitchen, but most of us don't want to be lugging a 33' tape measure to measure a 10' x 12' kitchen). If you use more than one tape measure on the job, measure and compare several distances with both tapes to see how they differ. Carefully note those differences and allow for them in use.

  • Learn to make and use story sticks. Story sticks almost eliminate the need for measurements by any other means.

  • Always treat squares gently. Get hold of an accurate framing square and an accurate try square and check their squareness often, resetting as needed

  • Use a marking knife instead of a pencil when laying out cuts. Save the pencil for your story stick.

  • Use a compass or a Contour Scribe to mark cabinets for installation against walls and molding. Use a rasp, scroll saw, or belt sander to shape to fit.

  • Develop consistency in measuring and marking, including the transfer of measurements to tools when needed for making cuts. For example, if you're going to split your mark one time, do it every time. If you're going to cut to the left of the mark once, do it every time. Move your mark for corresponding accuracy, do not move your cut.

  • There is an awe-inspiring range of tools for every cabinetmaking job. You don't need them all, but you do need some. Consider carefully what the job is going to force you to have on hand. Then make sure you have those tools.
Slicing The Sheets 

Most sheet material cutting can be done on a framework that includes several 2 x 4s, a couple of sawhorses and a chunk of 2" thick Styrofoam (or other plastic insulation board). Add a good quality straightedge or a cutting jig to a top quality blade on your circular saw, and you'll get cuts accurate enough for almost any cabinetmaking job, though the final cut is usually more accurately done with a table saw with a wide (50" or 52") capacity fence, and a large outfeed table. A standing, or vertical, panel saw makes it easier, as well as more accurate, but is an expensive tool for the hobbyist. 
Kreg Rip-Cut Saw GuideSome Styrofoam, a shop built straightedge guide for your circular saw, and a top quality saw blade for all length cuts is all it takes. A little extra time and care is required when transferring measurements, but once the guide is clamped in place, accurate cutting is easy. Laminates can be trimmed with a laminate cutter and rolled into the contact cement using a J roller, both inexpensive tools. Veneer edge trimmers also work for laminates, so special power laminate trimmers, and the bits for them, are not essential (though they ease trimming work by a fantastic degree: the bits can be used in any 1/4" chuck router, too). 

When the time comes to put doors on your cabinet carcass (box), you'll probably find a need for more power tools. The doors themselves can be built on the table saw (including doing the raised paneling, if any), or they can be done with a table saw and a shaper, or a table saw and a router table. One of the latter two choices eases work considerably, and usually results in a better looking job (normally, using a shaper or router table gives a raised panel that needs much less sanding than does one produced on a table saw), allowing more professional finishing procedures. 

Standard cabinetmaking is based on the right angle. If you get that 90° correct, measure other angles and distances carefully, and don't slop up the assembly, you're going to make some good, solid cabinets. It's when we come to the extras, the special joinery for decorative or structural purposes, the pieces that move out and away from security as base or wall cabinets and into the furniture arena, that we see real complexity rearing its lovely head. That extra fancy joinery is not necessary, and can even be counterproductive when you're producing cabinets, whether for your shop, kitchen, bath or any other room in a house. For the most part, cabinets are joined using butt joints, rabbet joints, dadoed joints, and pocket screws, biscuits or dowels for extra strength, or speed (or both), in assembly. The beauty in most cabinets in the home comes from raised panels, wood grain and the general proportions of the cabinets themselves. When you start making furniture in addition to cabinets, then the dovetail joints, finger joints, mortise and tenons and other more complex techniques come into play. 

Learn to make the basic cabinets needed around a home and shop. Branch out from that point, making, as you desire, fancier cabinets, or move on over into furniture where artistry and craftsmanship can be far more demanding than simple cabinetmaking. 


More Woodworking Projects


For further information log on website :
http://www.woodworking-news.com/woodworking-projects/cabinet-making-basics.shtml

Cabinetmaking


Cabinetmaking
Cabinetmaking involves more than simply designing, building, and repairing cabinets. It encompasses working with a variety of structures such as doors, windows and window frames, and all types of furniture. Cabinetmakers use many types of materials in this work, including veneer, fiberboard, particle board, hardboard, plywood, adhesives, abrasives, hardware and metal fastenings. They must follow blueprints and designer specifications exactly to construct and repair these wooden articles. Accuracy is imperative as they regularly need to fit small parts and sub-assemblies together, to precisely make and install cupboards and cases and to operate woodworking machines to cut and form parts. Today sophisticated equipment, basic woodworking machines, and portable power and hand tools are used to perform many of the job functions.
Cabinetmakers must have a broad knowledge of wood, its structures and properties, and an assortment of cabinetry hardware and materials. A worker with training and education could start in production and work their way up to a supervisory or management position in the wood industry, as the skills are transferable to a number of other professions.

Main duties

Cabinetmakers perform some or all of the following duties:
  • Study plans, specifications or drawings of articles to be made, or prepare specifications
  • Mark outlines or dimensions of parts on wood
  • Operate woodworking machines, such as power saws, jointers, mortisers and shapers, and use hand tools to cut, shape and form parts and components
  • Trim joints and fit parts and subassemblies together to form complete unit using glue and clamps and reinforce joints using nails, screws or other fasteners
  • Sand wooden surfaces and apply veneer, stain or polish to finished products
  • Repair or restyle wooden furniture, fixtures and related products
  • May estimate amount, type and cost of materials required.

Who do they work for?

  • Self-employed
  • Furniture manufacturing
  • Repair companies
  • Construction firms
  • Cabinetmaking contractors

Sample titles

  • Bench Carpenter
  • Furniture maker
  • Woodworking Machine Operator
  • Cabinetmaker
  • Cabinetmaker apprentice
  • Custom wood furniture maker

Essential Skills

  • Document use
  • Numeracy
  • Problem Solving
  • Decision Making
For full Essential Skills profile click here

How to join the field

  • Completion of secondary school is usually required.
  • Completion of a four-year apprenticeship program or A combination of over four years of work experience in the trade and some high school or college courses in cabinetmaking is usually required to be eligible for trade certification.
  • Trade certification is available, but voluntary, in all provinces and territories.
  • Red Seal endorsement is also available to qualified cabinetmakers upon successful completion of the interprovincial Red Seal examination.

Salary

Between $13.50 and $29.00. Annual salaries between $28,000 to $63,000

For more information, contact:

Skills/Compétences Canada
294 Albert Street, Suite 201
Ottawa, ON K1P 6E6
Tel: 877 754 5226
Website : http://skillscompetencescanada.com/en/

For further information log on website :
https://skillscompetencescanada.com/en/skills/construction/cabinetmaking/

Friday, 4 August 2017

Question Bank on Forestry competitive examinations

Author
14.61 · Kerala Agricultural University

xyz

Abstract

The book is “Question Bank on Forestry for all competitive examinations”. It deals with all syllabus of general forestry for all competitive exam such as JRF, SRF, SET, ASRB, UPSC, ICFRE, SAU’s, NET, SET, FOREST GUARD, FOREST RANGER, ACF, IBPS, Agricultural Coordinator and various entrance examination of agricultural universities of forestry graduates as well as agricultural back ground. The compilation is an endeavour to present, present day relevant questions in userfriendly / systematic in more reliable way. The questions presented in this book are mostly memory based which has asked in various examination. These set of questions will give the candidates an idea about the question pattern of the above mentioned exams and will be help to those student who wants to pursue their career in Forestry and Agroforestry. 

Question bank on Forestry competitive examinations


Available from: https://www.researchgate.net/publication/284730411_Question_bank_on_Forestry_competitive_examinations [accessed Aug 3, 2017].

For further details log on website :
https://www.researchgate.net/publication/284730411_Question_bank_on_Forestry_competitive_examinations

Comparison of sapling demography of four dipterocarp species with different seed-dispersal strategies

Published Date
Received 15 June 2004, Revised 5 December 2004, Accepted 5 December 2004, Available online 14 January 2005.

https://doi.org/10.1016/j.foreco.2004.12.002

Author
YayoiTakeuchia. Numbers and letters correspond to the affiliation list. Click to expose these in author workspaceOpens the author workspaceOpens the author workspace. Author links open the author workspace.TanakaKentab. Numbers and letters correspond to the affiliation list. Click to expose these in author workspaceOpens the author workspace. Author links open the author workspace.TohruNakashizukac. Numbers and letters correspond to the affiliation list. Click to expose these in author workspaceOpens the author workspace
a
Center for Ecological Research, Kyoto University, Kamitanakami Hirano-cho, Otsu 520-2113, Japan
b
Tomakomai Experimental Forest, Hokkaido University, Takaoka, Tomakomai 053-0035, Japan
c
Research Institute for Humanity and Nature, Takashima-cho, Kamigyo-ku, Kyoto 602-0878, Japan

Abstract

To determine the relative roles of seed dispersal in regeneration, we compared the spatial distribution and demography of four co-occurring dipterocarp species with different seed dispersal strategies: two long-distance seed dispersers with winged seeds (Dipterocarpus globosus and Shorea beccariana) and two short-distance dispersers with wingless seeds (D. tempehes and S. laxa). The spatial distribution and dynamics of saplings of the four species were investigated to test whether seed dispersal confers benefits with respect to either increasing the availability of safe sites or avoiding high mortality near conspecific adults. The median distance between a sapling and the nearest conspecific adult increased with sapling size in the long-distance dispersers. The saplings of short-distance dispersers were largely aggregated near conspecific adults, and the median distance did not change with sapling size. Light- and topography-dependent mortality and density/distance-dependent mortality were observed in some size classes of saplings of both long-distance dispersers. However, the mortality of short-distance dispersers did not show clear density dependence, partly because of the low mortality. We concluded that the functions of long-distance seed dispersal, i.e., escape or colonization, differ with size in D. globosus and S. beccariana, while the short-distance seed dispersers D. tempehes and S. laxa have other mechanisms to avoid mortality.

For further details log on website :
http://www.sciencedirect.com/science/article/pii/S0378112704008448

Thursday, 3 August 2017

Composite Panels Manufactured from Bamboo and Rice Straw

Principle Investigator: Dr. Salim Hiziroglu
Other participants: Songklod Jarusombuti, Department of Forest Products,Kasetsart University Vallayuth Fueangvivat , Piyawade Bauchongkol, Worakit Soontonbura, Royal Forest Department, Bangkok, Thailand
Funded by: Agricultural Experimental Station Kasetsart University and Royal Forest Department, Bangkok, Thailand, and FAPC.
This study investigated some of the important properties of particleboard and medium density fiberboard (MDF) manufactured from non-wood underutilized species, bamboo and rice straw in Thailand. Various type of experimental panels were manufactured using different ratios of both types of raw material. Rice straw did adversely influenced panels properties. However addition of low amount of rice straw in all panels did not substantially reduced both mechanical and physical properties of the samples. Panel made from 100% bamboo resulted in the highest values.
Currently sandwich type panels, having thin layers of fiber on the faces and particles in the core of the samples are being manufactured.

Rice HarvestingBamboo Plantation
  
  
Fiberboard panel manufacturing process
  
  

For further details log on website :
http://nrem-old.okstate.edu/faculty/researchlabs/Hiziroglu/Bamboo%20Panels/BambooPanels.html

Surface Characteristics of Japanese Wood Composite Panels

Principle Investigator: Dr. Salim Hiziroglu
Other participants: Dr. Shigehiko Suzuki
Faculty of Agriculture, Shizuoka University, Japan
Funded by: Japan Society for the Promotion of Science (JSPS)
and Agricultural Experimental Station.
This study investigated surface characteristics of commercially manufactured particleboard and fiberboard panels before and after they overlaid with melamine impregnated papers. Overlaid samples exposed to 55% and 93% relative humidity and their surface roughness was evaluated using a stylus type equipment. Significant difference between roughness of the samples at initial condition and 93% relative humidity was determined. Janka hardness of the samples exposed to two humidity levels also resulted in significant difference from each other.

Overlaying Process
Average Values of roughness parameters
 
 
 
Typical roughness profiles of the samples

For further details log on website :
http://nrem-old.okstate.edu/faculty/researchlabs/Hiziroglu/Japan/JapanesePanels.htm

Resistance of Eastern Redcedar Panels to Damage by Termites

Principal Investigator : Dr. Salim Hiziroglu
Other participants: Dr. Brad Kard, Department of Entomology and Plant Pathology
Dr. Mark E. Payton, Department of Statistics
Funded by : Agricultural Experimental Station and FAPC.
This study investigated resistance of experimental particleboard panels manufactured from eastern redcedar (Juniperus virginiana L.) to feeding by the wood destroying eastern subterranean termite, Reticulitermes flavipes (Kollar).Eastern redcedar panels with and without foliage were exposed to foraging termites. Particles and blocks sustained some damage by feeding termites but were not equally preferred. In choice test were all particles and panels plus control samples were simultaneously available to foraging termites, radiate pine sustained 44.6% weight loss compared with 2.1 to 6.1 % weight loss for particle and blocks. It appears that redcedar panels tested exhibited moderate resistance against termite damage.
FORAGING SUBSTRATE
STERILIZED SAND AND VERMICULATE
(10:1 RATIO)
STERILE DEIONIZED WATER WAS ADDED  350 ml/1,000 g DRY MIX.

  
Testing of Termite Survival
 
  

For further details logo website:
http://nrem-old.okstate.edu/faculty/researchlabs/Hiziroglu/Termites/redcedar%20termites.htm

Structural Composite Panel Manufactured from Eastern Redcedar

Principle Investigator: Dr. Salim Hiziroglu
Funded by: Agricultural Experimental Station and FAPC.
This study addresses to use low quality eastern redcedar trees to manufacture structural panels. Laboratory type flaker at Forest Product Laboratory, Louisiana State University was employed to produce strands from 6 in long eastern redcedar sections. Initially experimental panels having strands with random distribution were manufactured. Physical and mechanical properties of the samples will be evaluated. In the second part of the study oriented strandboard panels will be produced and their properties will be tested.

Raw MaterialsFlaking Process
(Louisiana State University,
Forest Products Development Center)
  
Stranding ProcessRandomly Oriented Strandboard Forming Box
 
  
Unpressed MatPressing of the Panel
  
 
Strandboard samples

For further detail slog on website :
http://nrem-old.okstate.edu/faculty/researchlabs/Hiziroglu/Redcedar%20panels/ERC%20panels.htm

Value-added Composite Panels Manufactured from Under-utilized Species in Oklahoma

Principle Investigator : Dr. Salim Hiziroglu
Funded by: Agricultural Experimental Station and FAPC.
Eastern redcedar (Juniperus virginiana) , mesquite (Prosopis glandulosa) and osage orange (Maclura pomifera) are some of the under-utilized invasive species in Oklahoma. Currently they have very limited uses, such as shelterbelt, wind break, and fence post. This study investigated some of the important properties of experimental panels made from particles of three species and their mixture of 50 %-50% ratio. Whole-tree chipped material was used to manufacture the panels. The samples were tested for mechanical strength and physical stability properties according to the procedures defined by ASTM D-1037. Modulus of elasticity and modulus of rupture of the panels made from 100% eastern redcedar resulted in the highest bending among four types of panels. Thickness swelling of the samples ranged from 11% to 20%. All panels yielded adequate bending strength, stiffness, and internal bond strength. Based on the findings in this study, it appears that whole-tree chipped particles of three species can be used to manufacture value-added panels without having any adverse influence on panel properties.

Eastern redcedar invasionEastern redcedar logs
  
 
Harvesting of Osage Orange
 
  
Pressed panel3-layer unpressed mat
  
Bending test set-upInternal bond strength test set-up
  

For further details log on website :
http://nrem-old.okstate.edu/faculty/researchlabs/Hiziroglu/Underutilized/underutspp.htm

Advantages and Disadvantages of Fasting for Runners

Author BY   ANDREA CESPEDES  Food is fuel, especially for serious runners who need a lot of energy. It may seem counterintuiti...