List,
The design of the 4kg metal can that the SLA resin comes in creates a
liquid trap at the joint where the lid is attached, so no matter how
long you up-end the can it never completely drains.
But I found a method that works very well for getting the last of the
resin out and reduces the waste.
A large syringe with a vinyl hose extension will reach down into the
can and let you draw most of the remaining resin out. Just tip the can
at a 45 degree angle and let it sit an hour and the resin collects. I
can usually get 1.5 - 2oz of resin out of a can that had previously
been drained overnight.
By the way, the syringe works great for adding and removing small
amounts of resing when setting up the machine. I get them from the
company nurse, she orders them from a medical supply catalogue.
I also cure the inside of the can by cutting off the plastic spout and
setting it under a 150w spotlight overnight. I made a frame to fit
under my PCA to do this.
I am jealous of those of you who live in sunny climates that can set a
can out side. Around here it would never cure.
Sincerely,
Larry Blasch
Systems Administrator for Engineering Services
OPW Fueling Components E-Mail:lblasch@opw-fc.com
P.O. Box 405003 Voice: (513) 870-3356
Cincinnati, OH 45240-5003 USA Fax: (513) 870-3338
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______________________________ Reply Separator _________________________________
Subject: RE: disposal of empty resin can
Author: DANIEL CHARLES DAVIS <DANIEL@proton.com.my> at internet
Date: 3/17/99 1:05 AM
Andy and all,
I am referring to the 18Kg SLA500 (SL5410) containers. With other
resins, YMMV.
--- 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 http://www.protoncar.com/rapid.htm > -----Original Message----- > From: ATiburon@aol.com [SMTP:ATiburon@aol.com] > Sent: Wednesday, March 17, 1999 9:37 AM > To: DANIEL@proton.com.my; ctmin@engin.umich.edu > Cc: rp-ml@bart.lpt.fi > Subject: Re: disposal of empty resin can > > In a message dated 99-03-16 19:55:19 EST, DANIEL@proton.com.my writes: > > << The lid is only crimped on, so use a screwdriver to uncrimp the lid > (that's what the holes in the crimp "ears" are for). >> > Methinks you are talking about two totally differant kinds of cans. > Mine don't > have ears, and it would take much more than a screwdriver to get the > lid off. > I am continutally disappointed in the resin manufacturers lack of > thought > towards their container design. > First the container should facilitate the removal of as much resin > as > possible. Such as some automotive oil containers do. I would actually > prefer a > removable bladder, sort of like a beer power ball or somesuch. > Considering the > cost(of the resin), it is very disappointing to go to all the trouble > of > cutting the lid off to find there is perhaps half a cup of resin still > inside > the container dispite all efforts to pour it out. > Second the disposal issue. A thoughful approach to resin container > design > would certainly include an easily removable bladder, or lid to > facilitate the > curing of what little container contents would be left, given > consideration of > the first requirement. > Our solution is to throw the whole can into the incinerator with the > rest of > the hazardous waste. > Andy Scott > Lockheed Martin Aerospace > > 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/For more information about the rp-ml, see http://ltk.hut.fi/rp-ml/
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