We’ve launched the revolutionary BlueCast X-One casting resin!

Regardless of whether or not you’ve already labored with jewelry-casting resins otherwise you all the time wished to strive them however by no means obtained the prospect, now we have nice information for you! We’ve simply added a unbelievable new resin to our e-shop. BlueCast X-One provides wonderful printability with the best element and provides an uncommon chance of chemical curing without having for a curing station. To show that this resin is one thing really particular, we requested the Clear Thoughts Jewelry casting studio to run in depth testing for us. Don’t neglect to look at the video!

How does casting resin work?

Should you’re a newbie or only a 3D printing fanatic who’s within the rules of jewellery casting resins, we’ll attempt to sum up the method for you – skilled jewelers might discover the next paragraph to be just about a recap of what they already know. 🙂

The precept is kind of easy: print the jewellery mannequin from SLA resin, add sprues to it, pour a liquid gypsum funding round it, take away air bubbles and let it dry. Then, the funding goes into the kiln for burnout, the place resin and sprues soften (or burn) away, leaving hole behind. Then, the hole is full of molten steel, cooled down and the tough product is prepared for some closing processing. Typically talking, there are various resins that can be utilized for jewellery casting, even the only – robust resins. Nevertheless, if it could be that simple, there wouldn’t be any casting resins available in the market. There are specific situations that must be taken into consideration. The primary is most print element – for printing filigree – this varies between completely different resin varieties, manufacturers and even printers. Subsequent, there’s burning temperature – varied resins have completely different full burnout temperatures. And at last, there’s remaining ash after the burnout. Ash is likely one of the most problematic components: robust resins are just about ineffective for high-quality casting since there’s a enormous quantity of ash remaining after the burnout. Jewellery casting resins, alternatively, are blended in a method to get the best particulars and virtually zero ash after the burnout. This fashion it’s attainable to make skilled jewellery with out a lot hassle.

What makes X-One so particular?

The BlueCast X-One is knowledgeable resin suitable with monochromatic SLA 3D printers, equivalent to our SL1S SPEED. A part of the resin combination is wax which supplies the resin its distinctive properties: the resin melts when heated after which burns like paraffin. This helps the right burnout with out leaving ash within the hollowed areas. The producer claims that the X-One doesn’t comprise any carcinogens and emits negligible odor and fumes. Liquid resin has low viscosity and solidifies at 18 °C (64 °F), that’s why it’s essential to work with it at temperatures starting from 20 to 30 °C (68 to 86 °F). A temperature-sensitive strip displaying orientational temperature helps in the event you don’t have a thermometer round. The producer recommends mixing the X-One with Filigranizer when printing high-quality (filigree) buildings.

The BlueCast X-One is now obtainable in our e-shop for $119 / € 143.99 (incl. VAT) per 0.5 kg bottle.

Step-by-step printing and curing directions

The resin and printed fashions have a darkish inexperienced shade and are comparatively smooth because of the wax inside. It’s essential to print with a sluggish print profile for the bottom likelihood of print failure. The BlueCast X-One comes with a non-traditional choice of chemical curing as a substitute of the usual UV curing methodology. A correctly cured mannequin ought to have a gentle gray matt floor.

For the perfect outcomes, we advocate the next process:

  • Preheat the bottled resin to 30 °C (86 °F, with CW1S, heat water, or microwave).
  • Shake properly earlier than use, the producer recommends at the very least 1-minute shaking.
  • Let the resin relaxation for five minutes after pouring it into the vat. This helps remove bubbles. It’s also possible to use a vacuum pump to remove the bubbles.
  • Print with following print settings: 0.05 mm – 7/25 s sluggish profile, 0.025 mm – 6/25 s sluggish profile, 0.1 mm – 8.5/25 s – sluggish profile. All print profiles for SL1S SPEED are already in PrusaSlicer.
  • Uncured fashions have a darkish greenish shade. One of the best casting properties might be achieved after a profitable curing course of, which is indicated by a gray matt floor. This may be accomplished by chemical postprocessing which supplies the perfect casting and mechanical properties. Alternatively, a UV curing with CW1S will be accomplished (1 min. washing and at the very least 15 min. curing) however with non-consistent outcomes.

Chemical postprocessing

The chemical postprocessing is finished with correct washing and drying. BlueCast recommends washing the fashions in 91 % or 99 % ethyl alcohol however we came upon that isopropyl alcohol (99.9 %) works as properly, with one small distinction – it’s needed to scrub fashions approx. 5 minutes longer. The true washing time depends upon the scale and form of the mannequin. Tiny buildings might get washed properly sufficient after 10 minutes, whereas bigger fashions may want longer washing occasions. For particular components, you’ll must do your individual analysis.

The following crucial step is drying. If this and the earlier step had been accomplished correctly, drying ought to end in a gray matt floor everywhere in the 3D-printed mannequin. In case the method wasn’t profitable, the mannequin will stay partly darkish inexperienced and the method must be repeated. Small darkish spots normally don’t trigger a lot hassle and will be left as they’re with out repeating the curing course of. One of the simplest ways of correct drying is direct publicity to sizzling air (hairdryer, CW1S, warmth gun) proper after eradicating the mannequin from the alcohol tub, whereas it’s nonetheless moist. Bigger fashions react greatest to a warmth gun preheated at 150 °C (302 °F) however excessive temperatures might harm tiny (filigree) buildings and will trigger warping of bigger buildings (helps and comparable components). The best compromise is 15 min. drying in CW1S preheated to 60 °C (140 °F).

Uncured (left) and correctly cured print (proper)

Mixing the funding and burnout

As soon as the post-processing is finished, the mannequin must be put into the flask with gypsum funding, burned within the oven and the cavity full of molten steel. The producer recommends burning the resin at 750 °C (1382 °F) however ensures full burnout at 680 °C (1256 °F). We haven’t had the prospect to strive burning or casting the fashions ourselves because of a scarcity of apparatus and needed abilities. That’s why we requested the Clear Thoughts Jewelry casting studio to strive the entire course of and doc each step. The values might differ for varied flask sizes and funding varieties however that is the process they used within the video linked above:

  • Water removing at 150 °C (300 °F) for 1-3h
  • Thermal transition stage 150-370 °C (300-700 °F) for 1-2h
  • Maintain 370 °C (700 °F) for 1-2h
  • Sample removing stage 370-730 °C (700-1350 °F) for 2-3h
  • Maintain 730 °C (1350 °F) for 2-3h
  • Cut back to casting temperature over 1-2h

The graph depicts burnout temperatures over the time

Jewellery created by Clear Thoughts Jewelry, utilizing the X-One resin. Obtain the OpenSource Signet Ring right here.

Now, the fashions look fairly good after the casting and a few sharpening, don’t they? And the Opensource gear ring mannequin is offered at printables.com. Don’t neglect to look at the video from the testing! We hope you’ll just like the X-One and might’t wait to see your superb creations.

Joyful printing!


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