Help: Acrylic Black Specks and Pitting

[rickbatey]

Has this ever ran good? The pitting sounds like gels or unmelted pellets. The nozzle tips looks incorrect for the sprue too. I would use the Eliminator from Sam Kern or properly sized full internal nozzle tip AND nozzle body! What is the extruded pressure when running? It should be around 800-1200psi or so. If higher then resin is being over heated. Is this resin UV or FR? That will cause it to be VERY shear sensitive and degrade. I think the water temp could be hotter. Are the parts hazy when ejected? That’s typical for this resin because the part isn’t fully setup but you can drop them into clean plastic totes with clean water.
Rick.

[Joel JS]

Thanks Rick, ... will investigate your ideas. Joel