Accurate 2D drawing with Rhino 3D - tutorial p3 |
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Delete the other two circles, we will first make the whole shape on the top and later array it over to the other two corners. |
Hide the rectangle and our small 15 units long line.
Next, go to 'curve/line/tangent to 2 curves'.
Click near the tangent point on the first circle, then do the same on the other circle for the second point. |
Do the same on the other side. |
Select all these curves and use trim to cut away the inner parts. Join these curves into a single curve. |
Use polar array to place this shape in the other 2 places. |
Click on the fillet curves button. |
Click on the radius option and enter 3. Also make sure you set the join option to yes. |
Fillet all the sharp corners by clicking on the two lines that make up a corner. |
Again draw a triangle with and edge length of 18.5 units. |
Place it in the center. |
Fillet the corners with a radius of 3. |
This is the final shape. |
Experiment with some extrusions and boolean operations to make a 3d shape out of it. |
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