Select each polygon, right-click to select “explode curve.” Choose one side of the dome and select the center two faces. Continue to rotate each face in 5 degree increments until you have a spiraled dome. Select one of the polygon faces and use the vertical line as the rotation point to rotate the polygon 5 degrees. Then, draw a vertical line through the center of the dome. Select a midpoint on the bottom of the polygon and draw a line to the center. Select the entire dome and use the scale tool to compress the dome down. Select each polygon face and hit “S” to scale each one down. Hit “M” and move the top face to the bottom and type “5.” Extrude the shape up and select the top face. Select the polygon tool and draw an octagon. Once you have the basics down, you can begin to experiment and create more complex domes in Sketchup like this spiraled dome.ĭraw a Polygon. Drag and click to another corner of the dome. Hit the “up” arrow to lock to the blue axis and then select the bottom midpoint. Press “q” to open the protractor (rotate) tool. In the default tray, go to the “soften edges” tab and use the slider to smooth out the rib.Ĭopy Ribs. Select each segment of the rib, right-click and select “make group.” Then, right-click again and make the group a component. Then select the “follow me” tool and click on the circle. Hold “ctrl” and click on each segment of the path (edge). Hit “C” and draw a small circle at one of the corners of the dome, making sure the number of sides is back to 24. With a dome created using the polygon tool, you can easily add other details like ribs on the outside. Use the same method you did to create the previous dome, but select the polygon tool instead of the circle tool. It’s also possible to make a geometric dome with ridges by using the polygon too. If you want to make the sides a little crisper, you can turn on “hidden geometry” and trace over the lines. Select the path, click on the “follow me” tool and then select the arc. Make sure you are in the same plane, and hold the “shift” key to lock to that plane and draw an arc.Ĭlose off the arc by drawing a line from the center of the octagon to the point where the arc meets the edge. Draw a line from the tip of the vertical line to a midpoint on one of the octagon’s sides. Lock to the blue axis by pressing the up arrow on your keyboard and draw a vertical line in the center of the octagon. Type “8” and draw an octagon (or any number of desired sides). When you first enable the circle tool, you will notice there is an area in the bottom right corner to edit the number of sides. Create Domes in Sketchup with Multiple Sides Then, right-click and select “intersect faces” > “with selection.” Delete your cylinder group and then delete the face where the oculus is. Select both items: your ungrouped dome, and the grouped cylinder. Create your cutting cylinder again, and make it a group. Make sure your dome isn’t a group at this point. Another way to add an oculus is to interset faces of two geometries. First, select the cylinder going through the center of the dome, then select the dome. Click on the “subtract tool” from the solid tools toolbar. To open the solid tools toolbar, right-click in the toolbars area and select “solid tools.” Before you use the “subtract tool,” make sure you delete the vertical line in the center of your dome (or any other extraneous lines or geometry). Right-click on the dome and select “make group.” Right-click on the circle and select “make group.” Use the “push/pull” tool to drag the circle all the way through your dome. Draw a circle at the tip of the vertical line in the center. Triple-click on the dome and make it a group. Add an OculusĬopy and paste the dome you just drew. If you want to modify the dome, hold “S” any of the points in the direction of your choosing. First, select your path (the first circle you drew) and then click on the “follow me” tool. Delete half of your half-circle so you’re left with just a quarter of the original circle.įollow Me. Cut the circle in half and delete the lower half.ĭraw a vertical line at the center of your second circle to mark where the exact center of the dome is. Draw another circle in the middle of the first one you drew. Hit “C” again and this time, hold the right arrow key to lock to the red axis. Hit “C” on your keyboard and click and drag to draw a circle. First, let’s go over how to create a simple, semicircular dome in Sketchup.ĭraw a Circle.
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