Difference between revisions of "Tube Frame"
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A tube frame or space frame is a chassis construsted from rigid truss members attached in a three-dimensional structure with the body panels having little or no structural function. Stiffness is maximised by triangulating the tubing to ensure that the tubes are not loaded in bending. | A tube frame or space frame is a chassis construsted from rigid truss members attached in a three-dimensional structure with the body panels having little or no structural function. Stiffness is maximised by triangulating the tubing to ensure that the tubes are not loaded in bending. | ||
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| + | ==Design== | ||
| + | Designing the tube frame is a compromise between structural rigidity, weight and manufacturing complexity. | ||
| + | ===Triangulation=== | ||
| + | Proper triangulation makes sure that the tubes are not loaded in bending. Full triangulation is probably impossible given that the driver like, can't have a frame member through their torso, but please try? | ||
| + | ==Manufacturing== | ||
| + | ===Cutting tubes=== | ||
| + | Tubes can be cut by hand, using holesaws and a drill press, or by using water jet or laser jet cutting. | ||
| + | ===Tube bending=== | ||
| + | Bending the tubes by handUsing CNC tube benders | ||
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| + | Any motorcycle builders around? They can have tools for 1" tubing. | ||
| + | ===Fixtures=== | ||
| + | Fixturing is central to the accuracy of the finished tube frame. Fixtures can be made in MDF, plywood or sheet metal. | ||
| + | ===Welding=== | ||
| + | ==Analysis== | ||
Revision as of 17:56, 20 May 2020
A tube frame or space frame is a chassis construsted from rigid truss members attached in a three-dimensional structure with the body panels having little or no structural function. Stiffness is maximised by triangulating the tubing to ensure that the tubes are not loaded in bending.
Contents
Design
Designing the tube frame is a compromise between structural rigidity, weight and manufacturing complexity.
Triangulation
Proper triangulation makes sure that the tubes are not loaded in bending. Full triangulation is probably impossible given that the driver like, can't have a frame member through their torso, but please try?
Manufacturing
Cutting tubes
Tubes can be cut by hand, using holesaws and a drill press, or by using water jet or laser jet cutting.
Tube bending
Bending the tubes by handUsing CNC tube benders
Any motorcycle builders around? They can have tools for 1" tubing.
Fixtures
Fixturing is central to the accuracy of the finished tube frame. Fixtures can be made in MDF, plywood or sheet metal.
