Since we have this discussion on a quarterly basis, here is the reply I
sent from last quarter!! Sorry for the repeat. Cheers.
We were one of the first users of the SL5410 resin (July 97).
> Does this resin live up to the claims?
Yes, yes, yes! The biggest advantage for me was the humidity
resistance. Here in Malaysia the nominal humidity (outside) is 85+%, and
even in my humidity controlled lab, it is 50+%. We have seen NO
softening of the parts over any length of time regardless of storage
conditions. The only exception to this is QuickCast parts, which soften
in about a week. Parts are very stable and accuracy is good (we hold
0.2mm as standard operating procedure and 0.1mm if need be).
> Are build times significantly faster?
I'd guess about 55 seconds a layer faster. 3D claims 0 seconds pre-dip
delay, but we found the need to run 10-15 seconds, as compared to 60-70
seconds for 5180. Slightly faster draw speeds, too.
> Does it post cure like the 5180 without becoming gummy?
Yes.
> Are side wall finishes actually better?
They seem to be. One can achieve a knife edge if desired. (the supports
can be that sharp inadvertantly).
> How well do these parts finish off?
The same as with 5180, however, there does tend to be a large number of
pinholes and bubbles on large flat surfaces. Usually they are not a
problem, but can be on QC parts. Also, the resin is more brittle than
5180 even when cured, so care must be exercised when handling the parts.
Not excessive, but more than with the 5180.
> Do the supports remove easily?
For the most part, but they have very sharp edges so be careful not to
cut the nitrile gloves. The low green strength can be a problem here
with thin walls, so removal from the platform and finishing procedures
will have to be modified with this in mind (we broke a fair number when
we switched over).
--- Regards, Dan Davis PROTON Rapid Prototyping & Manufacturing Center Hicom Industrial Estate Batu Tiga, PO Box 7100 Shah Alam, 40918 Selangor MALAYSIA +60 3 515-2380 phone/fax> -----Original Message----- > From: lrwhitaker@mmm.com [SMTP:lrwhitaker@mmm.com] > Sent: Friday, November 20, 1998 6:38 AM > To: rp-ml@ltk.hut.fi > Subject: Ciba SL5410 > > > > We are considering replacing our SL 5180 resin in our SLA500 machine > with > SL5410. > Before we do this, I'd like to get some input from the RP community. > What > has your experience been with SL5410 running in an SLA500 machine? > Thanks > in advance for your input. > > > > For more information about the rp-ml, see http://ltk.hut.fi/rp-ml/
For more information about the rp-ml, see http://ltk.hut.fi/rp-ml/
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