Using the drill press assures the hole go straight through the stick.įor the two guide nails, I use a small drill bit to create a straight pilot hole and then drive a nail through. Redpoint bits are good for this because the center spike holds the drill bit accurately on the mark. I'll drill a hole at the center mark for a pencil. The caliper tells me this pencil is just slightly over 5/16 of an inch. That way I can set how much the lead extends so that it will draw a good mark but not snap off. This is the kind I like, these Paper Mate ones that have a twist-out lead instead of a clicking lead. To draw this elliptical pattern, I'm just gonna use a mechanical pencil. And the other one is the minor axis, which is 6-1/4 inches. One is the major axis, which is 10-1/2 inches. I'm just gonna draw a reference line along the stick.Ġ2:27: I need to make three marks on here. I have a dimension of 6-1/4 for the minor axis and 10-1/2 inches for the major axis, and those are the two dimensions I need for laying out a pattern for drawing the ellipse.Īnd when someone asks me how do I draw an ellipse, I say, "Well, with an ellipse stick." Right? To make an ellipse stick, I just need a scrap of wood, preferably somewhat straight, and the length of the stick needs to be a bit greater than the sum of the major and the minor axes. An ellipse has major and minor axes that give it the elongated shape, and the pattern we're making is for one-fourth of the ellipse which will form the cut on the joists for this pergola. I started out with the 2x12s in this large pattern, and I'll use the same process to create a slightly smaller ellipse of a different proportion for other 2x10 numbers on the pergola.Ġ1:21: The first thing we need for laying out an elliptical pattern is the major and minor axes of the ellipse, where a circle has one center point and one radius. Because I'm using a range of lumber sizes for the pergola, starting with 2x12s, going all the way down to 2x4s, I need to make a separate elliptical pattern for each so that the proportions look nice on the width of material. I want to show the process I use for laying out and creating this pattern and then using the pattern to produce consistent, accurate results. ![]() In this video, I want to show the process I use for creating smooth, consistent, accurate results considering the method uses basic shop tools. One of the design elements is an elliptical cut making the sweep in the bottom of these haunches that will hold other parts of the pergola. I'm in the shop today making parts for this backyard pergola. ![]() Make a pattern using elliptical sticks, and then use a router with flush-cut bit to replicate onto the big stock
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