> -----Original Message-----
> From: ross [SMTP:ross@mnl.co.uk]
> Sent: Monday, September 28, 1998 11:19 AM
> To: Rapid Prototyping Mailing List
> Subject: Re: Growth over time
>
> Many thanks to all of you who replied either personally or to the group as
> a whole.
>
> The one and only point mentioned consistently was humidity.
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> Ross Nicholls
Ross,
It looks like I was a little late to this discussion. But here is my
2 cents for whatever it's worth. I believe you wouldn't have seen these
humidity related problems with next generation epoxies like Somos7100 or
Ciba5410. Though I don't have much experience with Ciba5410, at Plynetics
Express we have been using Somos7100 for more than a year now. We built
anywhere between 7,000 - 10,000 parts or more of various sizes, and shapes
and I can tell you humidity was never an issue. I have parts lying on my
desk for more than six months and so far they didn't exhibit any
growth/warpage/swelling though seasonal humidity variations in our building
could be as wide as 10-80%.
> Kamesh
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