3/17/2023 0 Comments How.to splice 2 peices of woodI'll test it tomorrow but I can see it is good. The joint is rock solid even after a couple of hours. After a couple of hours the epoxy had set and I took the clamps off. I don't think I really had to clamp at all but old habits die hard and I did. The joint was solid from the very beginning. It was too tight to safely remove them so I deemed it an acceptable gap and carried on. I had added a bit of extra thickened epoxy in the small void I had at the end of the fingers where I had not aligned the 2 pieces perfectly into each other. The joint is stiff and strong even without the glue. I'm not sure that's bad because epoxy is happy with a loose fit anyway. I did not think to be careful to start the fingers right at the end so I ended up with a small gap. The fit was quite tight and I had to use a mallet to push the fingers together. The wood absorbed some of the epoxy and the consistency was just right. I glued with a sloppy mixture of epoxy and silica. I did the second piece and sanded the slight irregularities. There was a little bit of fuzz on some of the end grain but otherwise the fingers are perfect. The set up paid off and the cut was very easy. I had no easy way of clamping and for a test I don't care if there is a hole. I lined everything up and screwed the pieces in place. I needed to add another piece of wood so the surface would be even. It only has to lift the plate so the router bit fits.Įverything is in place. I traced the finger template on a scrap and cut it with the bandsaw. My trim bit is exactly one half inch and it fits nicely between the fingers of the jig, unfortunately it is deeper than the thickness of the jig so I will have to lift the jig so that there is room for the little bearing and the screw that keeps the bearing on. One of the uses of this jig is to make box joints. The slots and fingers are exactly one half inch wide so in theory they should be perfect. I wondered If I could use it to make finger joints to join plywood. I never used it but when I moved it came to the surface. Many years ago I had bought a jig to make hidden dovetails for drawers. I was hoping to simplify the scarfing process. I was curious to see if I could cut finger joints using my router. Pitch or tar mixtures were often used in traditional boatbuilding, between layers to help make the joint watertight and help keep it together.Įpoxy is now the adhesive of choice. The overlap is often 8 to 10 times the thickness of the board to insure good strength and if glue is used, good adhesion. The ends of the planks to be joined need to be tapered and overlapped. The goal of scarfing a plank is to make a strong joint that bends in a similar way to the rest of the board. Scarfing is a common technique to join 2 pieces of wood into one longer plank. It is rare to get long flawless planks and for this reason many methods of joining wood to make it longer were developed. Boatbuilders have had to adapt their boatbuilding methods to use materials that were available locally.
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