Smoothing with THF seems to be the best way. But make sure you use rubber gloves (Not Latex since this stuff also desolves latex)

Pricerange: $ 10.00

http://www.printedsolid.com/smoothpla/

< before / after >



http://www.homedepot.com/catalog/pdfImages/ca/caf5af3e-85b3-43dc-8d5a-812d23b0ac83.pdf