Resawing by hand…

I often find myself needing to resaw large slabs of wood efficiently in my shop, and since I love my rip saws, its only natural that this is the tool I choose to accomplish that task.

Resawing is, technically speaking, sawing a piece of timber along the grain to reduce it in thickness. Common resawing operations are making veneer from a board, sawing a thicker board in half for book matching or, as in my case, cutting a single 2 inch thick chunk into two 1 inch thick slabs for handle blanks.

I selected a nice piece of bubinga, about 8 inches by 8 inches by 2 inches thick, so that  by resawing it, it becomes two very usable pieces…I could get two full size hand saw totes out of them, or, with efficient layout, maybe even four back saw totes (two from each piece). Bubinga is a realtively hard, dense, and tough wood….resawing it should be fun!

The first step before I start actually sawing is layout. And like all good work, the layout is critical. It’s very difficult to just clamp up the blank and start sawing, praying with each stroke that you stay square…that’s a real crap shoot (and I’m no where near good enough a sawyer to keep it straight anyway!) So, the trick is to use a marking gauge and scribe a line all the way around the blank along the center of its thickness to mark where your saw will cut.

Here’s the blank marked all the way around. I also darken the scribe line a bit with pencil…

Now I place the blank in my tail vise with one edge parallel to the bench top (it doesn’t matter which edge). In order to keep the saw tracking straight and square, you need to create a saw kerf all the way around the blank along the scribe lines. This will guide the saw blade as it cuts and ensure that it is tracking true in both dimensions. Without doing this crucial step first, as I mentioned above, it’s real crap shoot.

So, with the blank tightened up in the vise, I start with my 24 inch 6 point rip saw and begin to define the saw kerf along one edge of the blank. The key to remember as you start to cut is to use light preasure…don’t grip the handle tight and force it…hold it gently, letting the teeth do the work. At this point, the kerf is not defined, and taking it slow and easy to track the blade properly in the scribe line is paramount. If you force the saw, it will jump out of the line and cut off track. You should be gently holding the saw tote and only feeling the saw pushing back on your forward thrust…just in the palm of your hand. Keep the tooth line parallel to the face of the cut at this point… you’re aiming to create a saw kerf of even depth along the line. An 1/8th of an inch deep is plenty. Here’s my blank with the first kerf cut…

Next, I rotate the blank forward by 90 degrees and perform the same step all around the four sides of the blank. The fourth kerfing cut should join the first and third and each kerf should meet at the same point…right in the middle of the thickness of the blank.

With all four sides kerfed  in, now I rotate the blank 45 degrees in the vise and clamp it down so that one corner is pointing up….

The next step is to treat the blank like a giant mortise and ‘saw out the corner’ as Adam Cherubini likes to say. With the two kerfs started on each side, the saw plate will guide itself with little effort and cut true as a plumb bob.

I switch to a full size D-8 rip saw (thank you daryl!) at this point and start with, once again, gentle sweeps of the saw. I always let the saw do the work, especially at this point. The key here, is to align your eye so you can see the saw plate staying on line with the front and the back kerfs…that’s how you know you’re sawing true. Once I’m an inch or two into the kerf, I can start to really pump my arm back and forth to speed the cut….I always keep an eye on the front and back kerf to ensure I’m staying straight, but at this point, the saw pretty much stears itself.

Here I am about half way into the first ‘corner’…

Once I reach just shy of the half-way point, it’s a simple matter of flipping the blank 180 degrees in the vise, so that the other ‘corner’ is sticking up and repeat the previous step. Again, the key is just lining up the saw strokes with the two defined kerfs on each side and sawing away. You can see how easy it is to track the saw properly with the kerfed in corners….

When the blank is almost cut through, the two pieces start to feel loose and at this point, I switch back to the smaller saw and finish the cut…

A few more gentle strokes and the two pieces are free!

So there you have it….resawing the old fashioned way. The two blanks are nice and even in thickness…with a little planing, they’ll be ready for new lives as saw totes. I suppose you could say the more traditional way to resaw by hand would be with a frame saw, but I much prefer this method….I can’t see using a frame saw for much of anything (sorry Frank Klaus!).

All in all, this was probably five minutes or so of sawing….pretty quick. I’m not really worried about time in the shop though (and I’m a poor judge of it as well, I should add!)  My true motivation in resawing by hand is simply pleasure…I just love the feeling of mindfully sawing away. Call me crazy, but this is pure Zen (like Wilbur likes to say!). Plus, I probably burned about 20 or 30 calories, and that’s worth at least a bite from my cheeseburger from lunch…

:o)

Advertisements
Published in: on November 17, 2010 at 9:48 pm  Comments (7)  

The URI to TrackBack this entry is: https://thesawblog.wordpress.com/2010/11/17/resawing-by-hand/trackback/

RSS feed for comments on this post.

7 CommentsLeave a comment

  1. Matt, I totally agree about the pleasure of moving the saw.
    One question, though, out of curiosity: how do you define the kerf on those initial cuts? This is something I’ve been experimenting with lately, and have yet to settle on a method (i.e., far corner or near corner first, or nearly straight across—especially tough with those bigger handsaws).

    p.s. don’t let Wilbur see that pull saw in the background or he may step up his efforts to recruit you for the dark side.

  2. Good question.

    I start the kerf with the saw at a low angle and resting on the far corner of the blank. I use my thumb in the traditional manner to track the saw and draw back to define the initial kerf. Then, I lower the saw to just about parallel with the face of the blank and use forward strokes to define the kerf further. A well scribed line is key here and it gives just enough definition to keep the saw tracking in it. A few strokes is all it takes to define the kerf, and then you can saw away to deepen the kerf to desired depth.

  3. I enjoyed reading this! Good article!

    yaakov….

  4. Great tip about kerfing in around the block of wood, how would you approach a plank that is 8 inch by 2 inch by over a few feet long? Would you consider kerfing in on this or just marking the 2 long edges?

    • Another good question!

      I think you’ve got two options:

      1) You could kerf in along the 8 inch edge and kerf in along the first 12 inches or so of the long edge of the board with the rip saw. Then saw out the corner as stated above. Once you get passed the kerfed in area and you’re a good ways into the board, flip it over about every 6 to 12 inches to keep your cut true (another trick I learned from Adam Cherubini). Keep flipping and cutting until you finish the resawing.

      2) The other way you could do it is use your plow plane with an 1/16th inch cutter (or the smallest you’ve got)and plow a groove around all four edges of the plank, just like above, except with the plow and not the saw. Then, start sawing as above using the grooves made by the plane.

      Good luck!

      -Matt

  5. Great article! Great blog! Your suggestion of plowing a groove all around is brilliant!

  6. I enjoyed the article and the blogs. However, I must admit I am not familiar with all the woodworking terms. It seems to give you and others such pleasure, for which I am glad.


Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

%d bloggers like this: