Gary

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Gary
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  • Another thing to listen for is Z axis binding. This can generally be heard as a "knock" coming from the stepper. I often would occur at the same Z elevation. 
    in print issue Comment by Gary May 9
  • I can vouch for the skin irritation. Effect is similar to poison ivy and takes a good deal of time to heal.  Especially bad when not noticed on fingertips, and then transferred to face. Although I do not always wear nitrile gloves (I can spread resi…
  • SF Yellow is my goto general purpose resin. I don't seem to get the speeds that others do (I have the viewsonic projector) Slot 3 with 7 to 8 second layers @50um are very dependable.
  • I just had another build plate full of earrings shatter and deform, all in different ways. Printing the same layout now with castsolid. Will be interesting to see if the results are similar. Just from exposure tests, one thing about the cast solid i…
    in Draken Castable Comment by Gary April 2
  • Minwax Polycrylic is a high gloss protective surface designed for wood. Almost like spar varnish. It was mentioned elsewhere in the forums here as a way to get extreme optical properties with clear resins. It's on the thick side, so very fine detail…
    in Draken Castable Comment by Gary April 2
  • shrinkage, warping, and breakage during the build continue to be the biggest problems.  Clean-x did not resolve any surface issues, and in fact, made the surface quality of casts poorer.  However, a dip in polycrylic     does provide a significant…
    in Draken Castable Comment by Gary April 1
  • Great video! Thanks!
  • What a bummer! I didn't have any problems printing it flat on the build plate. It was after it had been sitting on my bench that I noticed the warp - and also in the casting. Shrinkage also explains why the rings split, but only when supported in a …
    in Draken Castable Comment by Gary March 26
  • Eeesh - such a complicated dance! I've had to switch back to MJ SR Y for some case furniture builds. I'll go back to this after I hear about your results. Meanwhile I'm seeing how well SR Y doesn't get along with platinum cure silicone :) How many l…
    in Draken Castable Comment by Gary March 23
  • I'll try again with the link: https://drive.google.com/file/d/0BzapArv08I07ZElmbm1aWFFIcVE/view?usp=sharing
    in Draken Castable Comment by Gary March 20
  • I have been unable to locate a perforated flask smaller than 3 1/2. Any smaller flask would be solid and only be able to have vacuum drawn from a small spot on the open bottom. Cant' see how that would make things better. Can you? I don't think ther…
    in Draken Castable Comment by Gary March 20
  • Forgot to mention - dropped the flask temp on these trees from 975 to 875F. The first tree was cast with metal too hot (concave button), the second tree was cast near optimal (flat button). Other variables?
    in Draken Castable Comment by Gary March 20
  • Well - I got the Clean-x and the results are somewhat better, but not significantly so. I've cast two trees with the kiln door open, so I don't see a lot of opportunity to improve oxygen with my current kiln. Here's the good, bad and ugly: …
    in Draken Castable Comment by Gary March 20
  • 38:100 4-6 hour cure, 15-20 minute water soak prior to burn - which is what has been recommended and sets up almost too fast. Vacuum cast. Yes casting silver - deox 50/50 from Rio. I will add a Stuller deox 935 in the future. I will try a cooler fla…
    in Draken Castable Comment by Gary March 16
  • Sorry -- 1650 was a typo. It is 1350.  Not tacky and well cured. I am using your slow peel. Re resin sprues and gates - I haven't had a problem with them.  I have issues with erosion These castings were wax spruedFirst an MJ SR Y model (before I rec…
    in Draken Castable Comment by Gary March 15
  • Sorry - screwed up an img tag ---;
    in Draken Castable Comment by Gary March 14
  • Good to know Ron. My kiln has no airflow at all. No vent. It is only big enough to hold a single flask. The electronics are at the bottom, so drilling there is not an option. Until I get the green resin I'm in experiment mode. Maybe I'll kick the t…
  • Believe it or not, I'm currently casting classic sterling I bought from Hagstoz early in the century. I used to do a lot of wire work, and a lot of those pieces are being recycled for metal and stones.  The surface quality is not great - but until I…
  • Was that your spruing of theirs? (I mean did you have them do the cast of just the wax?) Ive never been fond of the results I got from shapeways - one of the reasons I bought the traken! I got my very first cast with my new rig today. I'm actually q…
  • I was wondering how you were going to feed that textured band - what a cool solution!  I gave up on the MJ castable - awaiting delivery of the draken green - backordered. Vacuum caster arrived last week. mini kiln arrives today.  Off hand, do you kn…