International Association of Penturners - View Single Post - Casting in a Vacuum
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Old 11-14-2017, 12:52 PM   #8 (permalink)
Curly
 
Join Date: Nov 2010
Location: Saskatoon SK., Canada.
Posts: 2,478
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You could try and vibrate the mould to shake loose the bubbles. An orbital sander touching the side can work as can a blade-less jigsaw or reciprocating saw.
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