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Learning how to build Lotus Seven replicas...together!
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 Post subject: Re: shear/break
PostPosted: August 22, 2015, 10:26 am 
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Joined: August 19, 2014, 5:17 pm
Posts: 685
Location: England
I was thinking along the lines of my sketch below, if the tool carrier was brought through to the outside it could be powered with either hydraulic or a simple cantilever system from both sides . This would leave top and bottom clear for both folder and crop.

Bob

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 Post subject: Re: shear/break
PostPosted: August 22, 2015, 10:46 am 
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Joined: May 1, 2012, 9:43 am
Posts: 316
Location: Medicine Hat, Alberta, Canada
That's an interesting idea bob. I suppose you could have an arbor press style system with a rack/pinion that are mounted on both side plates and linked through a chain or the like. If you wanted to power it hydraulically then I think you would need a double acting ram acting through a cantilever or bellcrank to maintain clearance for both sides.

It might be easier to consider simply having the tool face swappable. Basically, it would be like a standard press brake but with the v-block and bending die bolted on, which you could remove and bolt on the crop anvil and edge. You would probably have to be careful about aligning them perfectly but it would be doable.


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 Post subject: Re: shear/break
PostPosted: September 11, 2016, 9:08 am 
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Joined: August 19, 2014, 5:17 pm
Posts: 685
Location: England
Small demo https://www.youtube.com/watch?v=f43FNeV41Lg







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