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Old 10-14-2016, 02:24 PM
Andrew Werby Andrew Werby is offline
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Join Date: Dec 2005
Location: Oakland, CA
Posts: 647
Re: 3-d Sculpture Modeling Programs - Sculptris

You need to burn PLA out for longer than wax - it doesn't liquefy and run out of the mold, so it needs more time. More oxygen in the kiln helps too. You can usually blow out a mold after burnout to remove any loose ash that remains.

Somehow I pictured all the unbound sand running out of a closed mold like sand in an hourglass - but it might take some pre-planning to make that happen.

Andrew Werby
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