Once again, a plane-making chapter in this series. The ultimate object, of course, is to make picture frames in 14th century style. To make a frame you make a molding. Once you have the molding it is not so hard to make a frame. But to make the molding you need molding planes, i.e shaped planes. After some experimentation I decided to make a plow plane. See the YouTube video I cited a good while back (Florentine 14th Century Frames). It is used to make the stair-steps (rabbets or rebates) that are later smoothed out to make the molding.
Of course, nowadays everyone uses power routers. But not me. In the old days it was all planes, and that is where I'm going. Onward!
Construction of a plow plane begins with the body. This is a priceless piece of oak, 145mm x 40mm x 22mm. It was once my daughter's dining room table, and the 22 mm is the thickness of the wood -- no doubt something in RGU, the Henry III units beloved by the USA. But oak does not grow in Alaska. I can live with 22 mm. The first thing is to make the body.
Next, we grind the cutter. I have gone into cutters before. I cut this one to shape on Gadget 1, see my last post. I had the good sense to make one of out of cardboard before I cut metal. It is shaped somehat like the letter L with a very thick horizontal. Final shape of the blade is obtained by grinding. I did the bulk of it with a DTT (Dremel-type tool). The cutter itself is a piece of old circular saw blade. Then we use a wet grinder to put a preliminary edge on the thing. I have no picture of this, because in the middle of battle one often forgets to take pictures! No war correspondents here.
You can find plow planes in antique stores, at exorbitant prices. They are also made in Asia, not so exorbitantly priced. You can plunk down a great deal of money and buy the beautiful Veritas plow plane (search on plow plane). I refuse. It is much more fun to make my own. I remind you of George Dyson's (q.g.) saying, "never buy anything you can make, and never buy anything you can find."
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