From: Rod McCormick (firstname.lastname@example.org)
Date: Thu Aug 18 2005 - 21:04:25 EEST
We had a ZCorp rep demo the machine a couple of years ago and he said
the liquid was basically sugar water. Of course, fancy, expensive,
highly sophisticated sugar water. So a very weak adhesive.
I can't imagine that the gypsum material would be an active plaster or
humidity would wreak havoc with it. I'd assume that the plaster-like
material is inert, hence the need to infiltrate the gypsum parts as
University of the Arts
On Aug 18, 2005, at 12:53 PM, Charles Overy wrote:
> >They said: “Cynoacrylate?” I said I thought a type of CA was used
> for infiltrating, but not jetting out onto the material.
> You are correct. There is a relatively thin solution that comes out
> of the ink jet heads (standard HP or in the older models Cannon) What
> is in this is a mystery to me except it is non toxic. It does contain
> some water, and agents that control how fast it dries and how much it
> permeates into the powder.
> The parts are porous and you can make them stronger by infiltrating
> them with CA, wax, epoxy, etc.
> My take on describing the proeces is that the powder is selectively
> solidified by the jetted binder. The newer powders are "plaster
> based" so I assume it is a reaction that is started by the water in
> the binder.
> I am sure you can talk to someone at Z Corp www.zcorp.com
> Charles Overy
>> -----Original Message-----
>> From: email@example.com [mailto:firstname.lastname@example.org]On
>> Behalf Of Scott Tilton
>> Sent: Thursday, August 18, 2005 6:38 AM
>> To: email@example.com
>> Subject: [rp-ml] What type of adhesive is used in a Z-Corp Machine?
>> Someone asked me this question . .and I didn’t know the answer.
>> (sorry, I’m not a Z-Corp know it all)
>> They said: “Cynoacrylate?”
>> I said I thought a type of CA was used for infiltrating, but not
>> jetting out onto the material.
>> Someone else said he thought the binding was a combination of some
>> stuff jetted out of the print head (possibly water) and a material
>> mixed in the powder.
>> He swore that’s how it was done.
>> Maybe it was in the beginning.
>> Maybe it still is.
>> Maybe it never was.
>> Someone please give me good schooling on this topic.
>> If you don’t want to type it all out, drop me an e-mail and I’ll
>> call you (or you can call me) to explain it.
>> Thanks in advance.
>> Scott Tilton
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