Geodesic Dome Struts: Cutting
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| Cutting | Flattening | Drilling | Bending |
Equipment for cutting metal conduit struts
Cutting struts is fairly simple, but lengths need to be very precise, especially for timber domes. The equipment below is commonly used for cuts when making a geodesic dome.
Cutting steel struts
There are a few ways to cut dome struts. The simple way is to use a cut-off saw (first image above). A large abrasive disc slice the pipe quickly
The second and third images above are band saws, one horizontal like image #2, and image #3 vertical version. A ribbon with sharp teeth continuously turns and lowering the arm will cut the pipe. Often this equipment has guides to help you cut the same length every time.
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Cutoff saw |
Band saw |
Vertical band saw |
Use jigs for ease and precision
Cutting struts requires a lot of repetition but remember that a geodesic dome requires multiple strut lengths (except for the 1V which needs only one). To save a lot of time and especially avoid errors, jigs are essential.
The bottom line for cutting jigs is for them to be attached to your cutting equipment and be level. On some equipment it’s possible to use a guide already included with it. On those that do not have an adjustable extension you can make one, preferably with a sliding tab to adjust for various lengths.
