Search found 287 matches

by rkundla
Wed Jun 27, 2018 9:40 pm
Forum: Casting
Topic: Whitegold - Castings with emerald resin
Replies: 28
Views: 25489

Re: Whitegold - Castings with emerald resin

We were able to improve the quality of our casting with a "new" burnout ( 1h30 min on 100 and up to 180 °C vor 1h30m before ramp up to 430( 9°C/min. - hold for 3 hours - ime where resin becomes soft and want to get out) and 3 hours at 800°C) So what was the total time to burn out before c...
by rkundla
Tue Jun 26, 2018 7:03 pm
Forum: Resins
Topic: Cracks in Emerald prints, need help!
Replies: 3
Views: 2269

Re: Cracks in Emerald prints, need help!

Since it didn't heal itself during printing, it could be lack of support causing stress on the part during exposure and then peel. That causes those pieces to shift back and forth during the printing process.
by rkundla
Wed Jun 06, 2018 9:43 pm
Forum: Resins
Topic: Solus Wax Resin
Replies: 189
Views: 81844

Re: Solus Wax Resin

The blue on the right is the latest that I was testing. On the left is the first one. Resolution is much better on the blue at 42. Prints great, casts great. another pic of a filigree in white gold. Came out great. So they are both SolusWax, just an earlier and a later iteration on the formula? The...
by rkundla
Mon Jun 04, 2018 4:37 pm
Forum: Casting
Topic: Erics paper on resin casting at the santa Fe Symposium
Replies: 16
Views: 14851

Re: Erics paper on resin casting at the santa Fe Symposium

Not all castable resins are receptive to boiling techniques unfortunately. Resins that use wax or a wax replacement (like Waxcast) could be damaged in boiling liquid. You may still need to UV cure the exterior to toughen it against the hot liquid. Unlike wax which has very specific properties, the u...
by rkundla
Fri Jun 01, 2018 5:05 pm
Forum: Gallery
Topic: DB Studio
Replies: 85
Views: 67455

Re: DB Studio

One more thing. Just shake well before use, it is not a stable resin. The chemistry of the cherry is somewhat different. I assume it got way more pigments than any other resin. Though the quality print is unique. I believe that Cherry is the most pigmented castable resin on the market. You have to ...
by rkundla
Tue May 22, 2018 4:34 pm
Forum: Casting
Topic: my recent castings
Replies: 9
Views: 9082

Re: my recent castings

Nice clean lettering. Did you apply investment to the lettering first before investing the full flask?
by rkundla
Thu May 17, 2018 7:51 pm
Forum: Casting
Topic: Solus Wax Cure No Cure
Replies: 16
Views: 14427

Re: Solus Wax Cure No Cure

Cast with Solus Wax. One was cured, one not. I clipped the prong on one to show it was the uncured piece. straight up to 1450 for 4 hours, then down to 850 cast temp Not sure if it is the photo or not, but it looks like you had some porosity as well as investment breakdown at various places on the ...
by rkundla
Mon May 07, 2018 7:14 pm
Forum: Casting
Topic: Whitegold - Castings with emerald resin
Replies: 28
Views: 25489

Re: Whitegold - Castings with emerald resin

My first guess is "as long as it takes" but it does vary based on the flask volume.
by rkundla
Thu Apr 26, 2018 12:59 pm
Forum: Casting
Topic: Casting resins cherry, emerald
Replies: 50
Views: 48184

Re: Casting resins cherry, emerald

I'd be concerned about using such flammable liquids in an enclosed appliance without any means of automatically regulating the temperature of the liquid. One mistake is all it takes for it to go up in flames. Another option that may reduce the risk could be a temperature controlled hotplate with the...
by rkundla
Fri Apr 20, 2018 4:12 pm
Forum: Resins
Topic: SolusCast: Cracks in heavy model
Replies: 116
Views: 56375

Re: SolusCast: Cracks in heavy model

Sochin, I wonder if the fact that the wax may be trapped behind the resin during the low temp phase (300°F) of the burnout could be an issue? During traditional lost wax casting, the wax would liquefy and drain from the flask during this period, but using a resin print which is still pretty solid at...