![]() ![]() Press the left mouse button twice without moving the mouse. Now make a loop cut by pressing the button (located on the Mesh Tools panel of the left hand Toolshelf) or by pressing “Control + R.” Locate the outer faces of the ring and wait until the loop cut cursor shows itself in purple in the centre of the faces. You need to make a loop cut on the inner and outer faces of the ring to bulge them out. (The true height of the original ring was 9mm.) ![]() Extrude the ring upwards in the Z axis to about 90cm. Now press “A” to deselect all, then press “A” again to select all. Push it to about 0.97 which will give you about 1mm proportional to the size of the circle. Instead it will extrude the points and edges inwards or outwards, as if you were scaling the circle. That is to say it will extrude the circle but not in the X, Y or Z axis. We do this by pressing “E” for Extrude, then before moving the mouse, pressing “S” to make it scale and extrude. To make the basic profile of the ring, we need to extrude the circle inwards. Go to the Scene properties on the properties bar on the right, and choose Metric as your units in your Units panel. Make a circle by pressing “Shift A -> Circle.” Using this, we measured the outer diameter.Īnd the thickness … ( Note: this one is tricky because the inside is curved, meaning the top and bottom are about 1mm while the middle is about 2mm.)Īnd finally the height of the ring and made careful notes of the measurements so we could refer to them later. We used a cheap digital vernier caliper that we bought online for about $3 from China. If you are making a model of an existing ring, then you need to take precise measurements. You have to not only master the ways of Blender but also get the model past the 3D print shop’s automatic evaluation tools. While it’s relatively easy to do and get right, to be honest, it’s not as simple as you would think.
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