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The plan
Notice that additional piece on top, with the hole in it? That hole will allow the upper link bar to be mounted parallel to the lower one...
Date: 04/14/2007
Owner: Chris Robison
Views: 119
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Paper template
With the shape traced onto paper and cut out, I can trace it onto the steel.
Date: 04/14/2007
Owner: Chris Robison
Views: 94
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Since I don't have any 3/16-inch steel handy...
I remembered that the 2x4-inch steel tubing in my garage has a 3/16-inch wall thickness...
Date: 04/14/2007
Owner: Chris Robison
Views: 97
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First cut, BANG!
The rectangular tubing was formed by folding and welding, probably in an automated process...
Date: 04/14/2007
Owner: Chris Robison
Views: 111
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First piece cut out
At this point, it should be pretty clear what I have in mind.
Date: 04/14/2007
Owner: Chris Robison
Views: 106
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Pieces cut out
These pieces will definitely need some cleanup, especially on what was the inside surface of the tube.
Date: 04/14/2007
Owner: Chris Robison
Views: 94
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Cleaned up, starting to cut
Trying to get a 1/2-inch wide bandsaw blade around these curves is like steering a tour bus through the corkscrew at Laguna Seca.
Date: 04/14/2007
Owner: Chris Robison
Views: 91
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Plasma rough cuts
After some time spent with the bandsaw, it becomes clear that the closer I can get with a faster tool, the less of my life I'll spend on this part of the project.
Date: 04/14/2007
Owner: Chris Robison
Views: 121
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Inside curves are the worst
To cut around this inside curve, I have to make several cuts from the edge and cut the curve in sections.
Date: 04/14/2007
Owner: Chris Robison
Views: 147
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