©Layer thickness：
The thickness of the layer printed by the printer each tim
,
the supported thickness range is
0.1mm~0.025mm.
The 0.1mm layer thickness prints faster and the printing accuracy is relatively low.
The time and precision of 0.05mm layer thickness printing tend to be relatively balanced.
The 0.025mm layer thickness prints more accurately and prints for a longer period of time.
©Layer exposure time：
In addition to the bottom layer
,
each layer is exposed to UV light for curing. Different resin are also
have different in layer exposure time.
©Bottom layer exposure time：
The time of bottom layer cured by the UV light
,
because the bottom layer is the base layer that
supports the entire model
,
the exposure time is longer. Different resin are also have different in bottom
layer exposure time.
©Factors affecting exposure time:
1.
Type of resin: Different resins are not sensitive to light
,
so different resins cure at different times.
Generally
,
the gray resin bottom layer exposure time is longer.
2.
Model factor：
❶
Structures such as small cylinders
,
thin walls
,
and thin supports need to increase the exposure time
of the layers.
❷
Structures such as small holes and small gaps need to reduce layer exposure time.
❸
The model with an excessively large underside requires an increase in the bottom layer exposure
time in order to adhere firmly.
3.
Layer thickness factor：The larger the layer thickness
,
the longer the exposure time required
,
and
108
the smaller the layer thickness
,
the shorter the exposure time required.
©Exposure intensity：
The light intensity of the light board
,
this item is basically a fixed value of 255bit
,
and generally does
not need to be adjusted.
©Lifting distance：
After printing each layer
,
the model is separated from the tank and lifted upwards. In general
,
the
larger the cross-sectional area of the model or the more dispersed the model layout
,
the larger the
lifting distance required; the thicker the photosensitive resin
,
the larger the lifting distance required.
©Lifting speed：
The rate at which the resin is lifted upwards to separate the model from the
FEP
membrane after the
resin has cured. When the model is separated from the
FEP
membrane
,
in order to ensure that the
integrity of the model is not broken
,
the lifting speed should be reduced
,
so the platform lifting speed
should be less than the falling speed. Under normal circumstances
,
there are small features or models
using fine support
,
the lifting speed should be reduced; the softer resin after printing should reduce the
lifting speed; the larger the cross-sectional area of the model or the more dispersed the model layout
,
the lower the lifting speed.
©Decline speed：
After the resin is cured
,
the platform is lifted and the speed of the film is lowered. In general
,
there are
small features or models that use fine support
,
and the speed of descent should be reduced; the softer
resin after printing should be reduced in speed.
109
Basic operational concept
Basic operational concept
Summary of Contents for SparkMaker SLA
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