May 19, 2012

Small Hall Table – Starting the Mock-Up

This weekend I had some free time and spent my time working on the mock-up for the small hall table.

I started with the legs. I was concerned that the size of the legs I drew up in my plans might be too bulky. The legs I drew up were 1 ¾” square at the top and tapered down to 1” square. After making the first leg I was sure it was going to be too bulky, for this table. I mocked-up another leg that was 1 ½” square at the top and tapered down to ¾”. I like this leg much better. It just goes to show that it is hard to judge size and proportion in a “CAD” program. A full size drawing or a mock-up might be needed.


To cut the tapers I made a simple jig. It’s just a piece of ½” MDF, with a couple stops attached to it. The stops held the blank in place pretty well, but I added some double-stick tape for good measure. After cutting the first two tapers, I had to add a small “shim”, the size of the waste I cut off, to the lower part of the jig. This kept everything lined up for each cut. The cuts were made on the table saw. The jig runs up against the rip fence.

After getting the legs worked out, I had some time to start on the form I was going to use to glue-up the apron. The apron will be a bent-laminate glue-up. This is going to be a somewhat “small” glue-up, so I just plan to us e a few pieces of MDF. The apron will be about 1 ¾” wide. 3 layers for ¾” MFD will give me the width I need to do the glue-up. To make the radius cuts I need, I used my band saw. I’ve seen this done on many woodworking shows, but haven’t tried it yet. I didn’t make fancy jig for this, it’s just a piece of MDF attached to my top. I then drilled holes for the different radii I needed, and used a piece dowel as the pivot point.

The boards that were going to be cut, were somewhat small so I only used double-stick tape to attach the jig to my top. Someday, I may spend some time to make a “reusable” jig. For now a simple board taped to the top worked well.

I started the glue up of the 3 layers of MDF. I plan to use some cork to line the form, but I have to track it down first. I think I’ll have time next weekend to do a test glue-up of the apron. I’ll show the completed form and glued up apron at that time.

Looking for lumber

I went by 2 of the larger hardwood suppliers in my area (Crosscut Hardwoods and Edensaw), looking for lumber for the small table I’m starting. For the first time I struck out finding what I wanted. I was looking to build the table out of Cherry. I wanted the top to be one piece and it needed to be about 10″ x 20″. Most of the boards I found were closer to 6″ and 8″ wide. I didn’t want to glue up the top, I thought the joint might look odd on the half circle shape. I did find one board that would work, but they were calling it “Figured Cherry” and it was over $20/bf. If it had figure in it I might have gone with it, but I didn’t really see any figure in it. Unless you call sapwood figure!

On to Plan B. Now I’m looking to use veneer for the top. I’ll just add one more thing to this project that I haven’t done yet. This simple little table is turning into a real experiment for me now. I started looking around online for veneers. I found some really nice Redwood Burl veneer at B&B Rare Woods. I had come across this company awhile ago, but I haven’t ordered from them yet. I sent off a few questions to them, and I’m waiting to hear back. It sounds like they are in the middle of moving to a new location, so I’ll give them a little while to get back to me.

In the meantime, I plan to pick up some inexpensive wood to start the mock-up. I plan to mock-up a couple different sizes of legs, to figure out which proportions work best. Design and proportions is something I’m still working on and I think a mock-up is needed. I’ve seen a lot of new woodworkers try their own designs, and quite often they come out chunky and heavy. This is going to be a somewhat small/delicate table, and I don’t want tree trunks for legs.

It’s interesting, Christopher Schwarz just talked about design in the latest issue of Popular Woodworking (Oct 2008). I had recently come to the same realization that there are no real design classes out there for woodworkers. Part of what I want to share in this blog, is how I develop that skill. I’ve been thinking about looking at some of the community colleges around me to see what they offer. If anyone is aware of design classes that can be taken by “average” people let me know.

Small Hall Table – Initial Design Idea

Now that I have finally finished my workbench, it’s time to move on to projects that have been waiting for me to finish the workbench.

We have needed a small hall table that will be near our front door. It needs to fit a specific area, which isn’t very wide. The table needs to be less than 20” wide. It will be a place to drop keys and mail. So it doesn’t need too large. I thought about some of the different design options. I wanted it to be clean looking, not too decorative. I looked through a few design books and kept an eye out in furniture sale fliers for design ideas. End the end, I started to settle on a half round table with tapered legs.

I spent some time in SketchUp to rough out my design. The top will be about 20” in diameter. I haven’t settle on the height yet, but it will be around 32” high. I also think I will use Cherry for the project, but it will depend on what I can find at my suppliers. I’d like to find a nice piece of figured Cherry for the top.

I gave some thought to the type of joinery I would use, to attach the legs to the apron. I was thinking I could use mortise and tenon joints for the back legs. Then I thought I could use sliding dovetails. Beside the joinery I choose, this project won’t be that complicated. I’ve never used sliding dovetails, so I think I will challenge myself and give it a try. For the front middle leg I will use a bridle joint.

The other challenge for this project will be the apron. I plan to make the half round shape, using bentwood lamination. This will also be a new experience for me. I’ve seen this done a lot but have never tried it.

Because some of these techniques are new to me, I will be trying them out on some less expensive wood first. I’ll create the apron and a leg or two out of Poplar. This will allow me to practice cutting the sliding dovetails, and to see how the bentwood lamination behaves.

To help cut the male end of the sliding dovetails, I looked around for dovetail planes. I really couldn’t find what I was looking for. I new Phil over at Philly Planes made different kinds of wooden hand planes. I sent him an email asking if he made dovetail planes, and I was happy to hear back that he does. I’ve got my name on his to-do list. It will be a few weeks before he can get to it, but that just gives me time to work on getting the test pieces put together.

Day 4 and 5 – Handsawing class with Christopher Schwarz

My last post really went into a lot of detail on what cuts I used on which joints, to demonstrate where the different classes cuts can be used. I won’t bore you with that kind of detail in this post. Instead I just give a general overview of what we did for our final project in the class.

Out final project was a Shaker Silverware Tray. It’s a “simple” and clean design, as you would expect from the Shakers. Clean and simple can be hard to pull off. Everything has to be just right, from the design to the execution. Otherwise it will look like someone just through it together. This tray is simple in design, but the proportions and slight curve in the handle give a pleasing look. Whenever I walk by it, I just want to pick it up and look at it and feel the shape. I try not to let my wife catch me fondling my projects :) .

As you might have guessed, this tray was made with using only hand tools. Well, only after the lumber was given to us. The wood was prepared beforehand by the school. There wasn’t time in the class for us to prep the wood ourselves using only hand tools. This was a handsawing and cutting class, not a rough to ready hand planing class.

Before this class I think I might have cut 10 practice sets of dovetails. The first sets weren’t the prettiest, but I kept trying. I can say it does get easier with practice. The more time you spend with saw in hand the better you will get. During the first part of the week we did have a lot practice sawing, which helped prepare for the hand-cut dovetails.

Let me also put in a plug for Rob Cosman here. Before I took this class, I watched a couple DVDs by Rob Cosman on hand-cutting dovetails. Rob has some very nice DVDs covering a few topics on hand tools. They are very informative and walk you through all of the steps in cutting dovetails. The DVDs are so good I can watch them over and over again. I can’t say that about a lot of woodworking DVDs. Rob has even come out with a shop manual you can take with into your shop. It covers cutting dovetails step-by-step. Also, Chris mentioned that he took a class from Rob, years ago when he (Chris) was starting out in woodworking. Rob will give you the confidence that you can do this, and it’s within everyone’s reach.

The curved end pieces were marked out from a template Chris had. I then used a chisel to chop away the excess wood. You could use a coping saw or some other method here, but a chisel does quick work of it too. I refined the curve with a rasp and then a spokeshave. I haven’t used a spokeshave that much, but I was really impressed with the clean smooth surface I got with. As with most hand planes, no sanding was needed after I was done.

The holes for the handles were made using a brace and bit. We drilled overlapping holes, with the brace and bit. The cherry we used was only 1/2″ think and a little brittle. One of my ends did crack, because I didn’t have it well supported. A little cyanoacrylate glue, fixed it right up. You can’t hardly see the crack.

After few pass with a Smoothing plane, I applied a few coast of Tung Oil. The dovetails came out pretty well. It’s hard to see in the pictures, but there a few small gaps. I’m making process but also realize that these are suppose to look handcut and not machine cut. I’m not saying they have to imperfect or gappy to be hand-cut, but that absolute perfection is not needed. I know I will get better overtime and my cuts will get tighter. Until then I’m not going to beat myself up over it.

Day 2 and 3 – Handsawing class with Christopher Schwarz

In this post, I’m going to go into some detail on how we built our sawbenchs. I’m going to explain the types of cuts (1st, 2nd, and 3rd-class) we used. This should give you and idea of when to use the different types of cuts and why.

The next 2 days of the class were spent making our sawbench. A sawbench turns out to be an essential tool for the sawyer. When using a handsaw (crosscut) or large rip saw, the sawbench allows you to work with the lumber at the proper height and angle for the saw. For a crosscut saw that is 45 degrees, and for a rip saw that is 60 degrees. If you tried to use these larger saws at your regular workbench, you will find the cutting action very uncomfortable and awkward. I found this out on the first couple of cuts we made.

We didn’t have our sawbenchs yet and I think no one wanted to go up and try Chris’s, out for fear of putting a cut into it! Luckily most of the other cuts we we had to make were made with backsaws, which work well at the bench.

The first task was to cut the legs to rough length, and at a 10 degree angle. This really was a rough cut, as the legs would be cut to final length after the bench was completed. We also worked on the shoulder cut at the top of the legs. The legs are set into the top of the bench, and the top rest on these shoulders. It was a fun challenge, seeing that everything was cut at 10 degrees. I started out with the cheek cuts, and used a 2nd-class cut for these. I then moved on to the shoulder cut, which were 1st-class cuts. I did pretty well, seeing that I still didn’t have much sawing experience under my belt yet. The cheeks and shoulders were cleaned up using my large Lie-Nielsen shoulder plane. It was pretty easy to clean up the cuts to the gauge lines.

One thing I learned during the class, once you get enough sawing under your belt, it won’t matter if the cut is at 90 degrees or 10 degrees. As in most everything, experience breads confidence. Also, as I got more experience sawing, the amount of clean up I had to do was less and less. The closer you can get with your cut, the less work you will have to do with some other tool.

Out next task was to start on the large stretchers. They had to be cut to length and the ends needed to be squared up. I used a benchhook and my Lie-Nielsen 5 1/2 bench plane to shoot the ends. Our next challenging joint was the half-dovetail on the stretches. A half-dovetail is a very traditional joint in bench construction. It’s a little easier to to cut than a full tail, and a half tail gives adequate support and anti-racking strength.

These dovetail joints are also lap joints and are let into the legs. The angle cut on the dovetail and vertical lap/cheek cuts were treated as 2nd-class cuts. They needed to be flat and square, but the finished surface wasn’t critical. Both of these surfaces are concealed inside the joint. The cheeks were also cleaned up using a router plane. The router leave a pretty nice surface, but if you have some tearout it’s not that critical.

The shoulder cut on the on the other hand is a 1st-class cut. This cut needs to be dead on. The shoulder can be seen, and must be tight. My cuts weren’t perfect, so I had to spend some time with shoulder plane to get them nice and flat.

Then the challenge was to half-tail cut in the legs. Use the stretches as your templates. I clamped a stretcher to a pair of legs and marked out the joint with a marking knife. I then used my marking gauge to mark the depth of the lap joint. I made the depth of the lap joint about an 1/8″ of less the thickness of the half-tail on the stretcher. This makes the stretch sit proud of the leg, which can hide any slight imperfections you might have in your joint.

Now that everything was marked it was time to cut. These cuts were all 1st-class cuts. These cuts will be seen and need to straight and square. There was a lot of material that needed to be removed. There are a few strategies that you can use. You can use a chisel to pare away the material. You can also make multiple saw cuts across the area and take the material out with a chisel. I tried both and they both worked well. To use a chisel alone, I think you need a large chisel, at least 1″ or more. I tried it with my 3/4″ chisel and it took awhile to pare away all of the material. Whichever method you use, you will most likely finish up with a router plane. The router plane does a very nice job of flattening and cleaning up the surface.

After all of the joints were cut and cleaned up, the large stretchers were glued to the legs. Glue should be enough, but some students chose to screw them also. I just glued mine. If you screw them, you can screw from the backside of the legs so that the screws aren’t as noticeable.

Now came time to attach the leg assemblies to the top! As mention earlier, the legs are inset into the top. This meant laying out those cuts and removing the material. I clamped a leg assembly to the top and used a marking knife to markout the joints. I think we set the legs in about 5/8″ of an inch. I treated these cuts as 1st-class cut. I used the multiple saw cuts technique to remove the waste. Then used the router plane to flatten up the bottom of the cut. When attaching the legs to the top, we used screws. It needs a little more support than the glue can give.

The small stretchers were the last pieces that needed to be cut and fitted. By this time, the simple half laps on the stretchers were a piece of cake. Again, the shoulders were 1st-class cuts and the cheeks were 2nd-class cuts. The cuts were cleaned up using a shoulder plane and now one of my favorite tools the router plane.

The slot cut into the top is a ripping slot. It’s used when ripping smaller pieces. It allows the bench to give support to the cut while allowing the saw to travel a few inches into the cut. You then move the board forward and proceed with the cut. If needed you can flip the board around and start cutting from the other end.

The final step in the process is to cut the legs to the proper height, for you. The top should be just at the knee or slightly below. For me that ended up being around 20″.

The holdfast you see on the bench is used to hold boards in place while chopping mortises. Chris told that these benches were also commonly used as mortising benches. The holdfast is positioned so that it can hold the workpiece over one of the legs. This give you a lot support while chopping the mortise. Also, if you flip the holdfast around knock it onto the top, it functions as a handle :) .

For those who would like to make one of these benches, Chris did post some plans on his Lost Art Press Blog. The plans are pretty close to what you see here, but there are some slight differences. For instance, the plan doesn’t include the half-dovetail in the long stretcher. It wouldn’t be that difficult to add it if you want that feature.