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New 3D Printed Lost Shell Sand Casting Technique Offers Fine Detail in Metal

by • June 30, 2016 • No Comments


Jeshua Lacock

We have the privilege of viewing many action-packed videos of innovators revealing what their new designs are all of, while in the moment. Seeing technique mixed with the drama and excitement of what these artists love to do is pretty refreshing, whether they are coming of snowy peaks, crashing ocean waves, or actually fire, which Jeshua Lacock appears to be really fond of via in his endeavors.

When we last caught up with the founder of 3DTOPO, based in Boise, he was yet refining his Lost PLA Casting system and working on his giant glass 3D printing device. More than your average DIYer or handy-around-the-house kind of guy, if a thing breaks on a machine, he just makes a new part—actually if it’s metal. But when you watch the systemes involved, you can see why not at any timeybody is doing this in their workshop.

ee26f7c0-5806-40b0-9f1a-4c58d6ede9ebBeing self-sustainable can be a few difficult business, but it’s obvious which this comes really easily to a fewone like Lacock, and thankfully he shares his techniques with anyone else who is interested in such systemes. Recently, Lacock took a few time out to share his newest method with us—and it’s many likely unlike anything you’ve at any time seen. He’s named it the 3D Printed Lost Shell Sand Casting technique, and I can’t figure out if the system or the results are additional amazing, but if you are interested in casting in metal, this is unquestionably worth having a appear at.

“As far as I understand, the technique is new to the world,” Lacock not long ago told 3DPrint.com.

Stating he attained numerous comments which his Lost PLA Casting technique appeared ‘like too much work,’ Lacock decided to try a thing various with his new technique, casting in copper. (Note: There is brief shop talk/profanity in the video.)

“This method is much faster, simpler and less expensive,” he told us.

unnamed (10)Whilst this method is pretty not intended for the novice, Lacock points out which sand casting with 3D prints pretty is not anything new. It is limited, howat any time, in terms of his general project requirements.

“With which technique, just parts which can be removed of the sand are feasible – undercuts, cores, etc. are all limitations of which system,” said Lacock. “By burying and burning the print out directly in the green sand, those short-comings of sand casting are eliminated and brings many of the benefits of the Lost PLA technique–though the casts are not really as more detailed as which technique.”

The Lost Shell Sand Casting technique works with ferrous metal too, eliminating the require for ceramic shell, and of course the beauty of sand is which it can be utilized repeatedly when you are working in this medium. And in this technique, again, Lacock did use a 3D version which was printed via PLA filament with 0% infill.

All of the images here revealing examples of this new technique are direct of the sand, with no clean-up, with the parts weighing anywhere of 10-15 pounds. When the sand is packed tighter, you can notice which you see the 3D printed striations additional unquestionably, which Lacock finds helpful to see since their goal here is to attain as much more detail as possible and he can use them as ‘a ruler for more detail achieved.’


Lacock uses a 15kw induction generator during this technique, and finds which to be many efficient, melting 8kg of copper in of 20 minutes (costing you of $0.20 in electricity), and in addition capable of melting steel. They utilized a high-purity 8kg graphite crucible here, but for ferrous work, employ a clay-graphite crucible.

In their next documentary, Lacock and his team plan to work with steel, and can in addition be revealing the induction generator in a next video if you are curious to find out additional of which. Discuss this new technique additional in the Lost Shell Sand Casting for 3D Printed Models forum over at 3DPB.com.