From: Bathsheba Grossman (sheba@bathsheba.com)
Date: Wed Apr 23 2003 - 19:06:03 EEST
On Wed, 23 Apr 2003, Paul Suomala wrote:
> * Cyanoacrylate sets very quickly - ok for pieces that
> are broken, having jagged edges which act as alignment
> features. But if you miss, you are in trouble.
Yep. I never found that plain Krazy Glue worked well, but with the
addition of Zip Kicker it does what it's supposed to do. But it's
hard to put the parts together perfectly in one try.
> * Wax welding (the seam) is ok if you can clean the weld
> line before or after casting. The green material melts
> at 95 deg C. This method will give you the cleanest
> burnout if you are investment casting the part(s).
This is what I ended up doing, for the rare broken-yet-repairable
part. Although it is imprecise and makes a messy joint, nothing else
was reliably workable.
> * Fingernail polish is very forgiving due to having a
> relatively long set-up time. You need to maintain a
> fixtured position for a few minutes - the time is
> dependent upon how much of the nail polish you use. It
> is forgiving - if you err, you have time to take it
> apart and try again.
I never could get this to work, although I bought the brand Solidscape
recommended. It just made a sticky mess. Maybe there's only one
particular product that works, or something.
> Please let us all know what results you have.
Yes, if you find something that works I'd love to hear it.
-Sheba
-- Bathsheba Grossman phone (831)429-8224, fax (831)460-1242 Sculpting geometry bathsheba.com Solidscape prototyping protoshape.com
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