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Dulling
Causes:
Dulling of the film is a regular wear phenomenon (mainly when using
abrasive fillers in 3D printing material). In this case, the transparency of the film
decreases due to microdefects that are caused by the printing (tear-off) and
cleaning process (scratches).
Error:
With decreasing translucency or increasing opacity, the light scattering at
the interface between the bottom of the vat and the 3D printing material increases.
Depending on the degree of turbidity, this leads to a reduction of the printing
object quality caused by increased separation forces. A strong dulling can lead to
(partial) delamination of components or broken structures. When evaluating the
film condition, please note that the PowerVat glass has a slightly frosted surface
to make peeling off the film during printing more efficient.
Recommended actions:
A slight clouding on the film does not affect the printing
quality, however in case of heavy clouding or printing errors, the film shall be
changed immediately.
1.
After the print job, remove material from the PowerVat
2.
[Step A] Removing the Top Part (follow cleaning instructions)
3.
[Step B] Removing the Film (follow cleaning instructions)
4.
5.
[Step F] Assembling the Top Part
Uneven Film Tension
Causes:
Uneven film tension may be caused by compression of the film during the
assembly of the clamping plate
[2]
(see [Step E] Assembling the Film) or by loose
screws
[8]
that lock the clamping plate. Furthermore, very high loads during the
printing process can lead to a plastic deformation of the film, which causes an
inhomogeneous stress distribution.
Error:
Unless the PowerVat is filled with material, the film should always "float"
over the glass surface. For verification, please conduct the "Knocking Test": a film
floating above the glass plate results in a hollow, high-frequency noise, while a
film adhering to the glass results in a dull knocking sound. Especially in the middle
