Prusa i3 MK3 - Page 57

11.9  ASA
Acrylonitrile-styrene-acryl (ASA) is a material with properties similar to ABS, its main benefit
is increased weather and UV resistance. Another advantage is overall dimensional stability.
To achieve a cast-like surface, acetone smoothing can be used…
ADVANTAGES
DISADVANTAGES
Heat and UV resistant
Bad smell
Soluble in acetone (easy post-processing)
High level of warping
Can be vapor smoothed
● Nozzle temperature: 270 - 280 °C
● Bed temperature: 100 - 110 °C (bigger object -> higher temp.)
● Heatbed:  Make sure the surface of the heatbed is clean. Usage of brim is suggested
(see Prusa Knowledgebase).
11.10  nGen
Developed by Eastman Chemical Company and colorFabb, nGen offers increased
resistance to heat as well as dimensional stability. The material is low-odor and styrene-free.
ADVANTAGES
DISADVANTAGES
High gloss
Brittle
Good surface finish
A bit of warping
Good layer adhesion
● Nozzle temperature: 240  °C
● Bed temperature: 80 - 100 °C (bigger object -> higher temp.)
● Heatbed:  Make sure the surface is clean. Do not use isopropyl alcohol to clean the
bed, or the adhesion may be too strong, use window cleaner instead. If you do not
have anything else on hand use the bundled glue as a separator after cleaning it.
Windex or similar window cleaner is a great option for nGen and you don’t need to
use the glue after the cleaning. Spray a small amount on an unscented paper towel,
and wipe the print surface.
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