Archive for the Category ◊ Tools and Shop ◊

Author:
• Wednesday, November 20th, 2013

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Or a block plane? Answer: It’s out on the bench almost every time I’m working there. I don’t always know ahead of time what I’m going to use it for, but I know I am going to use it for something, and I know it will get the job done.

Really, this Bad Axe Hybrid Dovetail/Small Tenon saw is the most versatile backsaw I have ever used. The amazing aspect is not only how many tasks it can do, but how well it does them. It cuts wonderfully smoothly. For example, it is now my favorite saw for tenon shoulder cuts – a crucial crosscut, but it also does a nice job for small tenon cheeks – a rip cut.

Here are the specs of my saw, which I have been using for about three months: 12″ long, 0.020″ saw plate, 14 ppi, “hybrid” filing, depth under the back 2 1/2″ at the heel, tapering to 2 3/8″ at the toe. The hybrid filing is about 10° (negative) rake and 12.5° fleam. Remember ladies and gentlemen, BATW makes exquisite handles in a variety of woods in five sizes to fit your hand. As I have discussed in other posts, I also very much like the hang of BA saws.

This is the saw I recommend if you are working with small to moderate size projects and want to own only one backsaw that must be as versatile as possible but that will never be displaced by more specialized backsaws as you expand your tool kit. If you want to further specialize, Mark Harrell has a great offer to facilitate this (see the ninth paragraph down in the linked page).

There is a “soul” in these Bad Axe saws that I feel is very special. These tools improve my work.

There are excellent saw maintenance tutorials and learning materials on the BATW site. Mark also offers hands-on saw sharpening and maintenance seminars at BATW HQ that will doubtlessly take your skills to the way beyond.

Category: Tools and Shop  | One Comment
Author:
• Saturday, November 09th, 2013

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The teeth of a traditional woodworking float, very much unlike a rasp, span the full width of the tool. The cutting surface looks somewhat like a super-wide ripsaw. Iwasaki floats share some characteristics with traditional floats but have important differences in design.

These modern floats are remarkably smooth cutting and leave an amazingly smooth surface on the wood. They have almost no tendency to “catch” on the wood. They also allow great control to produce a true surface, such as in making fine adjustments to tenon cheeks. Aside from very hard steel and very sharp teeth, these floats have interesting features that contribute to their wonderful working properties. 

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As you can see from the photos, unlike a traditional float, each tooth row is discontinuous across its width. Furthermore, each row is curved so that most of the cutting edges are presented to the wood at a skew to the length of the tool. Each gap in the row is followed by a cutting edge just behind it. In this way, these tools act similarly to a segmented spiral cutterhead in a thickness planer, which is also very smooth cutting and produces small shavings and tearout-free surfaces. 

This also helps reduce clogging in the floats. The wood that does accumulate in the grooves is easily cleared by tapping the tool or, more thoroughly, by brushing.

Click on the thumbnail (below) to see the macro photograph and note that below the leading faces of the teeth is a small curvilinear bump. This acts as a chipbreaker, further facilitating a smooth cut without tearout.

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It is easy to get the feel of using these tools – use a firm but gentle approach to the wood. However, keep in mind that a skew is built in to the cutting edge. Since the tool is “pre-skewed,” your natural tendency to skew it as you would a rasp might work against you. If you use a skewed stroke, the actual presentation to the wood of one side of the tooth line is being less skewed and may tend to catch. The other side is being more skewed, and the tooth line may tend to slice along its length. This is more intuitive than it sounds and you will quickly work out an effective approach with the tool for the particular task at hand.

I’ve been using the 200 mm fine flat model for a few years now, and recently bought the coarse 10″ flat model. Even this, the coarsest grade, leaves a nice fine surface on the wood. The chamfer in the enlarged photo (below) is directly from this float.

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Iwasaki floats come in coarse, medium, fine, and extra fine grades, and flat, half-round, round, curved, and plane maker’s models. Woodcraft, Lee Valley, The Best Things, and Highland Hardware have good, though different, selections. They’re a good buy.

Author:
• Monday, August 26th, 2013

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This is the best screwdriver I have ever used. Made by Spec Tools, the Overdriver Pro has been in service in my shop for 23 years.

Similar to many drivers, the magnetic shaft accepts 1/4″ hex bits, which makes it a versatile space and money saver, and it has a ratchet mechanism to reduce hand fatigue and speed the work, though this one is exceptionally smooth and quiet. There is room to store several bits inside the handle.

What makes this tool unique and great is its patented 4:1 on-demand gear ratio. When you want low speed with high torque, use it like a regular driver with a 1:1 gear. When you want high speed with low torque, use your second hand to grip the large collar at the top of the shaft to actuate the 4:1 mechanism, making it easy to exceed 400 RPM. The smaller collar at the base of the handle reverses the ratchet direction.

None of this would matter if it was flimsily built, but this tool is very well made and tough. It has seen plenty of use in all sorts of DIY work in addition to the woodshop. The handle is hard plastic that gives a surprisingly good grip and is very durable, but can be a little rough in sweaty hands. There is no lock setting on the ratchet mechanism, which I would sometimes find convenient when making a final torque adjustment on a screw and want to back off a little.

The model pictured above has been replaced by the OD-2001 – same tool, different color. It and the RGO-5412, which has a friendlier looking handle containing some firm rubber, are the company’s pro model straight drivers. They cost more but are worth it.

This screwdriver does not seem to be sold by many stores so I thought readers would like to know about it. Spec Tools is located in eastern Massachusetts, and you can order from their site.

This review is unsolicited and uncompensated.

Addendum: I would like readers to know that after I posted this review, the nice people at Spec Tools sent me a package of a few tools, which they insisted I keep with no expectations on their part. I did not solicit, hope for, or at all anticipate this, nor did I subsequently change the content of the post. It is not why I wrote the review. Therefore, I have kept the tools.

Author:
• Friday, May 03rd, 2013

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These saws solve problems.

The Japanese azebiki saw, at the top in the photo, has curved tooth lines designed to start a cut in the middle of a board. One side is rip, the other crosscut. The neck is thicker toward the handle, which, along with the short cutting length, makes this saw fairly stiff for a Japanese saw.

The azebiki works well cutting against a straightedge wood guide to make kerfs for starting grooves and dados, including sliding dovetail sockets. Use a chisel to clear the waste and a router plane to true the bottom. I prefer an electric router for this work but sometimes it is too risky or awkward, so it is good to have hand tool options.

For all sorts of odd small-scale sawing tasks, the azebiki saves the day. It is inexpensive and worth having in the shop.

The Z brand 6″ keyhole/compass saw (S-150), at the bottom in the photo, has Japanese three-bevel crosscut-style teeth (17 tpi) with variations in the set to help clear waste. This saw cuts more smoothly than other Japanese and Western keyhole saws that I have tried.

At .035″ thick, it is stiff enough to maintain control when sawing curves, as long as the stock is not too thick. Of course, it cuts on the pull stroke, which occasionally is a disadvantage when jabbing into a small hole to start a cut.

I bought the skinny keyhole saw with the wooden handle many years ago, and it hangs around waiting for an odd situation where there is only a tiny hole or narrow slot to sneak into with the nose of the saw. It would be expecting a lot for a saw of this size to cut smoothly, and indeed, it does not.

The little guy keeps his place on the roster because, though infrequently, he continues to make plays when needed. And he doesn’t take up much space on the bench.

Second from the top in the photo is a Z brand flush cut saw (S-150). You might not need this type of saw if you use the trick I discussed in an earlier post, but I still like having it as an option. The .016″ thick plate is very flexible, so it can be bent to allow the handle to be lifted away from the work surface, as you use the fingers of your other hand to press down on the saw blade.

To prevent scratching the work, the three-bevel crosscut style teeth (21 tpi) have no set whatsoever. I prepped the saw by lightly working each side on a medium sharpening stone to ensure that any trace of burr would be gone. As discussed here, binding can be a problem with this saw but it works well enough for shallow cuts.

Z brand saws are well made. The replaceable blades are inexpensive, so there is no worry if you occasionally abuse them when desperately trying to do an awkward job.

This part 8 concludes the My Saws series. Or does it? Our current woodworking world has some great saw makers at work, modern technology, and an expanding appreciation of the woodworking wisdom of our forebears, so a new saw for my shop is always a possibility. The bottom line will always be: how the tool can help me make things that I so dearly want to make.

Note: The entire series, parts 1-8, of “East meets West: My Saws” can viewed on a single page via this link.

Author:
• Thursday, April 25th, 2013

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This coping saw frame is an old one made by Eclipse in England. The handle, threaded stem, proximal blade anchor, and the yellow tabs are transplants from an otherwise poorly designed $8 Irwin saw. The handle’s rounded triangular cross section and comfortable grippy material make it less fatiguing to use than the wooden original.

Small frame-type saws like these lack the robust rigidity of their larger cousins and thus perform better cutting on the pull stroke, which also happens to be more natural and efficient when it is used vertically.

I like Olson CP304 blades for general work (.020″ thick, .125″ wide, 15 tpi). The CP301 blades are slimmer (.018″ thick, .094″ wide, 18 tpi skip tooth) and may fit into the kerf of some dovetail saws when used for removing waste, though the total set of these blades varies from about .002″ to .008″ in the ones I measured. CP307 (32 tpi) are handy for the inevitable metal cutting that woodworkers do.

In addition to “serious” work, the coping saw is great for very young kids who tend to dig in and stall with heavier handsaws. The coping saw seems to avoid this because the blade is under steady tension, helped along by the pull stroke. The blades, of course, are inexpensive.

Clamp the wood firmly for the little woodworker, who should use two hands on the saw. You will be the only one who cares if the cut is straight. Even at younger than four years old, my son and daughter played in the shop with me, sawing little wood pieces, building little things, and making big memories.

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Knew Concepts takes coping and fret saws to vastly higher levels. I have an earlier model 5″ titanium frame fret saw. This style is currently available in aluminum, in addition to the newer “bird cage” titanium model. They also make a similar coping saw.

These saws are amazingly light and rigid, plus offer a convenient cam lever tensioning mechanism and indexed blade tilt adjustment.

This saw is excellent for inlay work using #2/0 blades (28 tpi skip). Again, the pull stroke setup is best. I wrapped the handle in black friction tape.

It is by far the best saw I have used to remove dovetail waste. You can get very close to the baseline using a single cut. This makes chiseling the remaining waste faster and, with less push back of the chisel, more accurate. The fret saw blade easily fits into the kerf made by most dovetail saws, and can be redirected sideways within one stroke.

After experimenting, I found #3 blades (Pegas brand) to be the best for this task (.0118″ thick, .038″ wide, 19 tpi skip) – faster, narrower, and cleaner than the #5 (.0145″ thick, .043″ wide, 16.5 tpi skip).

Knew Concepts saws are examples of tools for which we might otherwise have complacently accepted the limits of the standard designs.

Next: miscellaneous saws that solve problems.

Author:
• Monday, April 22nd, 2013

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Why part 6? Parts 1-5 were posted in 2010, and cover the main Western and Japanese handsaws and joinery/backsaws that I use. I have since added the Bad Axe dovetail saw to that group and it has risen to the head of the class. This post will cover bowsaws. Part 7 will cover coping and fret saws. Part 8 will cover miscellaneous accessory saws. 18 saws isn’t a lot, right? Right.

The Woodjoy bowsaw, pictured above, is my bandsaw without a motor. Glenn Livingston produces this thoughtfully designed and beautifully made saw along with other excellent tools. It is a very sturdy tool with about 16″ between the stiles. The toggle system easily permits half turns, which is important in properly setting the blade tension.

The “Turbo-Cut” blade, listed at 400mm (15 3/4″) long but with a comfortable 13 1/2″ of tooth line, has super-hard (>Rc 70) Japanese-style teeth, 15 tpi. The pattern, which could be considered a modified ikeda-me, is seven three-bevel crosscut teeth followed by a pair of special rakers that have their end bevels cut in the opposite direction from those of the crosscut teeth. It crosscuts fast, and seems to rip even faster.

The blade is about 5/16″ wide, .024″ thick, with the teeth widely set to a .048″ kerf. This makes it surprisingly maneuverable following curves, though the cut is fairly rough across the grain.

For power, comfort, and accuracy, I prefer to use this saw with a horizontal push cut, and the frame is plenty rigid enough for that. Some may prefer a horizontal pull cut, or a vertical push cut, though the latter may be difficult at typical workbench height.

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This is a fairly heavy saw, so here is how I hold it for cutting curves. I grip the handle with my dominant right hand, similar to holding a straight-handle dovetail saw, and align it with my right shoulder. This reliably steers the saw while my left hand provides passive support near the end of the rail. The saw works best when you let it do the work and use as much of the blade length as you can with every stroke.

This saw could quite reasonably be used in a hand-tool-only shop in place of a bandsaw for roughing out curved table legs and other heavy curved work. It has the moxie and the control to easily handle 8/4 maple.

I like this size saw for curved work. Woodjoy also makes larger sizes, and Turbo-Cut blades are also available in 1 1/4″ width.

I bought the bowsaw pictured below more than 30 years ago. It was made in Denmark by JPBO but, as far as I know, is no longer available. This is the model of saw that was preferred by the late great teacher Tage Frid. He used it with a horizontal push stroke for joinery and crosscutting, and vertically for ripping stock.

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Not long after buying it, I replaced the original blade with one labeled “The K and P Saw, Western Germany,” also no longer available. An excellent blade, it is tapered in thickness from the teeth to the back, so it can be prepared with very little set. The blade is about 19″ long and has 10 tpi, which I file rip. Frid advocated a rip filing for both ripping and crosscutting.

This saw is surprisingly light yet rigid, probably due to the width and orientation of the frame members – unlike most bowsaws, the wide dimension of the rail is horizontal. The toggle system is less refined than on the Woodjoy saw, but half turns are still possible by loosening and reinserting the toggle stick in the opposite direction, then retightening it.

I find I get the best control and endurance by holding it by the lower part of the fairly wide stile.

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This saw does not get a lot of use in my shop now but it is still handy to have for various ripping tasks. I find it is especially accurate and comfortable for cutting tenons, though I’m in the habit of using the ryoba for that.

Because I like using my bandsaw so much (“the hand tool with a motor“), I also don’t frequently use the Woodjoy bowsaw. Nonetheless, I still want both of these hand tools in my shop – they give me options and they’re ready when I want them.

Next: the fret saw and the humble coping saw.

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Author:
• Sunday, February 10th, 2013

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Lee Valley Tools recently made available Square Hole Punches that easily form a square hole for filling with a square peg.

A simple peg or, even better, the drawbore method, are time-tested ways to reinforce mortise and tenon joints. I prefer the look of a square peg, but it is much easier to use a round peg inside the joint. I have tried various methods such as whittling the lower portion of a square peg into a roundish shape. Still, it is fairly tedious to neatly form the square portion of the hole with standard tools.

I have tried using a corner chisel and experimented using a hollow chisel mortising bit for this. Despite some success, I was still not happy with those methods. Lee Valley has made this much easier with their Square Hole Punches. Please see their website for how they work. I’ve tried them out in the shop and they work well.

They are well made and cleverly designed – except for one problem! However, I think this problem could be solved by adding some options to another one of their new tools, the Dowel Former. I sent the following message to Lee Valley. I invite your comments.

Hi Lee Valley folks,

I would like to suggest a coordination between your excellent Square Hole Punches and your new Dowel Former.

As you know, the diameter of the round hole in each Square Hole Punch is 3/64″ less than the size of the punch. I think I understand why. If the hole were larger, the thickness and strength of the wall of the punch would be compromised. If it were smaller, it would be too hard to drive the punch. Because the punches are sized in common convenient measurements, such as ¼” and 5/16″, the holes are necessarily odd sizes in the 64ths, such as 13/64″ and 17/64″, respectively.

However, when using the punches, I would like to use the drilled hole to insert a round peg for the mortise and tenon joint, and then fill the square hole with a square plug. I think for many woodworkers that would be the major benefit of the Square Hole Punches. However, to my knowledge, dowels are not available in odd sizes such as 13/64″, 17/64″, etc. Machining my own dowels is a hassle I would rather avoid. Whittling them to those sizes is tedious and inaccurate. True, I can make my own dowel plate but it is not likely to be as good as what you can manufacture, and I like working wood more than metal.

One solution would be to make the Square Hole Punches a bit larger, so that the holes would be in 32nds. For example, the ¼” punch could be 17/64″ and its hole would then be 7/32″. But, once again, who has a 7/32″ dowel? Not a good solution. Another approach would be to make the punches in sizes such as ¼” + 3/64″ = 19/64″ and  5/16″ + 3/64″ = 23/64″ so the round holes will be handy diameters, namely ¼” and 5/16″, respectively.

Enlarging the round hole is not a good solution. It would likely create inaccuracies and sloppiness, especially since enlarging it up to the next common dimension would make its diameter equal to the width of the square hole.

I think there is an easier approach. I suggest keep the Square Hole Punches just as they beautifully are, and make inserts available for your new Dowel Former to form dowels which fit the holes in each of your Square Hole Punches. I suspect this could be done relatively easily without a lot of retooling (unlike altering the sizes of the punches), and, if I understand correctly, you manufacture the Dowel Plate at your facility since it is a Veritas tool.

I present this suggestion in the context of having the highest regard for your company and the contributions you have made to the craft of woodworking. I plan to post this suggestion on my blog at www.rpwoodwork.com/blog and invite comments, as readers so often come up with good ideas and constructive suggestions.

Thank you very much,

Rob Porcaro

Category: Tools and Shop  | 6 Comments
Author:
• Saturday, February 09th, 2013

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Here are more morsels of shopology from the “sawdust and shavings of my shop” that I hope will be helpful for readers.

1. Recognize the difference between efficient rhythm and dulling repetition. Finding the sweet spot can improve the quality, speed, and enjoyment of your work.

For example, in the above photo, sawing the cheeks for four tenons in a bunch put me in a nice sawing groove, accurate and fairly fast. After four more sets for the other ends, I was ready to move on to other tasks. Immediately doing likewise for another set of rails, would probably have put me over the threshold of monotony, and induced careless inaccuracies.

2. It is helpful to have a separate sharpening station, however modest, so you do not have to clear space on your bench for sharpening gear and the mess that sharpening can create. A dedicated station will also encourage timely attention to edges.

3. Milling rough lumber to finished thickness in one session can be risky, especially if there is substantial thickness or distortion that must be removed. If there is any doubt at all, it is safer to mill to near the final thickness, watch the wood for a few days, then, when it is convincingly settled, go to the final thickness. Then joint the edges and square the ends.

4. Keep router collets clean at all times. A slipped router bit is not fun. I use cotton-tip swabs before putting the router away after use. And clean the pitch off the bits before putting them away. I like CMT 2050 cleaner for that.

5. Be cognizant of the “zoom power” that you are working in. There is a larger margin for error for joints and edges in a basic pine bookcase than in a small, fine walnut jewelry box. Working at the wrong zoom power can create undue stress in the building bookcase, and obtrusive sloppiness in the box. Be practical.

6. Move and adjust the light to where you need it. Just do it. Then resume working.

7. There is almost always a smarter and less smart order to do things in building a project. Without going too crazy, take some time to think about the planned outcomes of processes and what can commonly go wrong. Then plan a course.

8. Without reinventing the wheel, it pays to once in a while rethink common procedures, constructions, and tool setups. Without a doubt, there is always more to learn, and I want to put at least some of it to use in my shop.

Happy woodworking, dear readers.

Category: Tools and Shop  | Tags:  | 6 Comments