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CAD/CAM Corner
3D Printing With Sugar
6/5/2013

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 (Source: The Sugar Lab)

(Source: The Sugar Lab)

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Elizabeth M
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Pretty sweet...
Elizabeth M   6/5/2013 8:00:12 AM
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Well, this is certainly not a 3D printing application I would have imagined! I am impressed by the intricacy of the designs. They remind me a bit of ice sculptures in terms of their sensitivity to the environment and their use of a delicate and changeable material, but of course not as cold and perhaps a bit more sticky. Interesting story to cover.

JimT@Future-Product-Innovations
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Making it Edible - That's innovation
JimT@Future-Product-Innovations   6/5/2013 1:51:25 PM
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My first impression after reading only the headline, took me  back to my 6th grade art project where I built a medieval castle using sugar cubes  as the bricks.  (Cool project, I got an A+).  Keeping it around the house afterward was different story as ants quickly discovered it, and my mother banned it 'to the curb'.

Making the art projects as Edible to begin with – now there's a great innovation.  Congratulations to the von Hasseln's!

Rob Spiegel
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Printed chocolate has gotta be coming
Rob Spiegel   6/5/2013 4:23:57 PM
This concept just screams for chocolate. I'm not even kidding. Perhaps it would require a lower temperature process, but the results could be beautiful for weddings or centerpieces at conferences. I'm betting on chocolate.

Charles Murray
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Re: Printed chocolate has gotta be coming
Charles Murray   6/5/2013 6:51:58 PM
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I agree, Rob. Weddings, anniversaries, birthdays, graduations -- this idea could be a moneymaker.

TJ McDermott
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Re: Printed chocolate has gotta be coming
TJ McDermott   6/5/2013 11:00:10 PM
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Rob, it's here already.

http://www.movingbrands.com/innovation/advent

Please excuse me - I have to go print dessert.

D. Sherman
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Gold
How does it work?
D. Sherman   6/6/2013 8:37:41 AM
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It's a neat idea and application, and I can understand the inventers wanting to keep it secret, but I'd still like to know how they do it. Given that they start with granulated sugar and end up with granules stuck together, it's some sort of sintering process. With sugar, that could involve either heat or a solvent (water). It seems like heat would carmelize the sugar, but perhaps not. In any case, that would be similar to the laser sintering used for 3D printing metal parts from powdered metal.

A solvent-based sintering process would be more interesting because I'm not aware of that being used in any 3D printing systems to date. Solvent sintering could open up a lot of new applications. It could provide an alternate method of making plastic parts, compared to the plastic wire extrusion that is common. I could also see it used to make intricate structures of water-soluble or other chemicals for use where a large surface area as well as mechanical strength is needed, such as in batteries and catalysts. A chemist may even be able to devise a process by which some chemical reaction takes place as the particles are adhered together with the solvent.

I must say I was disappointed with their website. It's very minimal, it doesn't work well, and the pictures, that are almost entirely close-ups, don't really show much.

Corona Rich
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Gold
Confection on the range
Corona Rich   6/6/2013 8:38:01 AM
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But...can it be used to print guns?

There's no such thing as bad publicity, you know.

OLD_CURMUDGEON
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Platinum
Edible Desserts, etc.
OLD_CURMUDGEON   6/6/2013 9:02:38 AM
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Here in the Tampa Bay area I see quite frequently a brightly decorated van with the logo & description of EDIBLE DESSERTS.  The van artwork shows various fruits re-formed into figures, etc.  So, it would seem that although this 3-D printing is something new, this concept is not new.  I'm sure that there are small businesses sprinkled throughout the land that offer this service also.

William K.
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Re: Confection on the range
William K.   6/6/2013 9:06:56 AM
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That would lead to the ultimate sugar shot, I suppose.

William K.
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Platinum
Re: Printed chocolate has gotta be coming
William K.   6/6/2013 9:14:59 AM
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Rob, I am certain that I have seen a write-up about a chocolate printing process, within the last year, I think. So your idea is certainly valid. But I think that it dispensed a thin stream, not drops.

As for 3D printing with sugar, it would take a thin stream of granules and just enough IR to melt the outside of the grains, so the process control would need to be very tight. Not a real problem, except for finding the exact parameters. Adding any solvent would certainly lead to almost instant jamming because wet sugar is so very sticky. Really, the serious challenge would be in the feeding at a consistant rate. Of course it might just feed one grain at a time, but do it quite rapidly. 

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