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Old 12-30-2012, 12:48 PM   #1 (permalink)
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Guy makes bicycle almost entirely out of cardboard

Dunno why he was so obsessed with a cardboard bike, but the end result is pretty darn cool! There is a video in the link.

Cardboard bicycle 'close to mass production': tough, green and just $20

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Izhar Gafni, from Israel, spent 18 months just folding the material every-which-way in order to discover a strong enough design, and now he claims his technique is almost ready for mass production. His maintenance-free bike uses a "secret" mix of organic materials to make it waterproof and fireproof, and is then lacquered to give it a friendlier appearance. It's expected to cost a mere $20 and weigh about 20 lbs (9 kg) -- that's 65 percent lighter than an average metal ride. In fact, this bicycle doesn't use any metal parts at all -- the solid tires are made of reconstituted rubber and a car timing belt is used instead of a chain.

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Old 12-31-2012, 12:13 AM   #2 (permalink)
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Originally Posted by Daox View Post
Dunno why he was so obsessed with a cardboard bike, but the end result is pretty darn cool!
Cost, availability and RENEWABILITY of the material. Makes sense.
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Old 12-31-2012, 02:51 AM   #3 (permalink)
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The latest version kind of looks cool. I am glad that he improved over the early designs. Those were hideous!
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Old 12-31-2012, 03:16 AM   #4 (permalink)
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At twenty dollars, that's even cheaper than a secondhand Japanese bike.

I'd buy one!
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Old 12-31-2012, 11:47 AM   #5 (permalink)
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Do the materials cost him $20? According to the comments, he is using honeycomb cardboard, like from HONEYCOMB BOARD| CORRUGATED PAD | CORRUGATED SHEET | CORRUGATED CARDBOARD | COROPLAST | CORRUGATED ROLL. I looked around a little and that was the best price that I saw, $18.75 for one 4'x8' sheet, with a discount for bulk orders. Amazon shows timing belts for just over a dollar and then there is the cost of paint and other chemicals, the tires, and what he charges for his time, currently three hours.

I am afraid that he would be selling them for more than that.
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Old 12-31-2012, 11:53 AM   #6 (permalink)
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I'd really be surprised if he could make the whole thing commercially for $20. I bet the article writer just asked him how much it cost him and regurgitated that number.
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Old 12-31-2012, 01:33 PM   #7 (permalink)
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Its probably just material cost...labour cost will need to be added to that
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Old 12-31-2012, 05:31 PM   #8 (permalink)
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It would be an interesting DIY. He could sell plans, but people do not like paying for things that they can steal for free.
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Old 01-02-2013, 06:33 PM   #9 (permalink)
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he should use copper foil tape for the electrical wires when he converts to electric !!

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