Key principles.
Standard matte
Most common 3D print finish. Removes loose powder, evens texture.
Acetone for ABS
Solvent vapor smooths visible layers. Limited materials.
Mass finish
Vibratory tumbling for batch finishing. Cost-effective for production.
Custom
Hand sanding for cosmetic surfaces. Labor-intensive.
Primer + paint
Sand smooth, prime, paint. Premium aesthetic.
SLS/MJF nylon
Nylon parts dyed black or color in solution.
Critical features
Machine flat datums and bearing surfaces post-print.
Mirror
Polish to mirror for premium SLA prints.
Metal coating
Electroless nickel or chrome plating on plastic prints.
FAQ
Bead blast for matte. Polish for mirror. Paint for cosmetic. SLA accepts all standard finishing.
Bead blast standard. Dye in solution for color. Vapor smooth limited.
Sand layer lines smooth, then prime and paint. Acetone vapor smoothing for ABS.
Bead blast then heat treat. CNC machine critical surfaces. Polish to specification.
Bead blast cheapest, paint most expensive. Each step adds 20-50% cost.
Bead blast for industrial. Painted for consumer products. Dyed nylon for general.
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