Post AKUj7WAD2CFG0SCF3g by Hinge@80percent.social
 (DIR) More posts by Hinge@80percent.social
 (DIR) Post #AKUj7WAD2CFG0SCF3g by Hinge@80percent.social
       2022-06-14T22:35:10.290790Z
       
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       I finally got a reasonable result casting 3d printed parts.Here I cast the face shield of a greco style helmet.  It came out good enough to use as a night stand accessory.R&D is done and we're on to prototyping.Lessons learned so far.PLA is too ashy for my purposes, I'll be switching filament to a wax based product that leaves less residue.Plaster or any gypsum product is not suitable as an investment.  Ceramic shell casting is the way to go.  I made a slip using taxidermy clay (don't) and it worked ok.  There is cotton fiber in that kind of clay but it was 5 bucks for 10 lbs.Zinc is more forgiving than aluminum.  The last cast actually included a Lorcin 380.
       
 (DIR) Post #AKUj7WbrNOMZOD8K9o by joenarcoleptic@freeatlantis.com
       2022-06-14T23:31:42Z
       
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       @Hinge That is so freaking awesome.
       
 (DIR) Post #AKUjMkABGb89ljRY4e by joenarcoleptic@freeatlantis.com
       2022-06-14T23:34:27Z
       
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       @Hinge Try this:https://www.amazon.com/Polymaker-PolyCast-Filament-Designed-Investment/dp/B08G16P738
       
 (DIR) Post #AKUjcxcczk2U8zTxRY by joenarcoleptic@freeatlantis.com
       2022-06-14T23:37:22Z
       
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       @Hinge or this:https://i-beamfilament.com/product/i-beam-blue-wax-pla-casting-3d-printer-filament-1-75mm-1kg-spool/