10-18-2016, 09:03 AM
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Ciderwright
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Join Date: Apr 2013
Location: Burlington, WI
Posts: 633
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Mine was in PLA and finished pretty nice - just not easy.
As a chemist by day, I have access to tetrahydrofuran, which is supposed to soften PLA, like acetone does ABS. Well, it works, but just barely.
What worked best for me was a light touch with a steel file and a lot of sanding. The 'design' sizing appeared to be the bottom of the ridges, so I had to take the shoulder down all the way smooth. I ended up using good old wood filler for the finishing touches on the upper portion. That worked fine.
I was amazed at how the primer made ridges barely discernible quite visible.
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