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Dave's cheap sheetmetal brake

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lakeracer69

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Has anyone built one of these? I need to bend up some .025 6061T6 sheet for longish parts. I have a plan to use 4 X 4 X .250 angles for the brake parts. I want to make it around 9 feet long. It looks like he used aluminum MS hinge on his.

I was looking at continuous hinge online and was wondering what size to use. I'm thinking of something steel with a 3/16 pin diameter. Is that overkill? I know even thin stuff is hard to bend without deflection when it's long.

Here is a URL of his brake http://www.biplaneforum.com/pdfs/brakeplans.pdf
 

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