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In this study, we investigated the effect of printing orientation and laser spot size on fabrication of
embedded microchannels by SLA. For this purpose, rectangular microchannels of width ranging
between 210 µm and 1160 µm were printed in acrylic based photopolymer Clear™ resin. Printings
were done by using Formlabs Form 2 desktop printer with laser spot diameter of 160 µm. Results
showed that, channels with 460 µm design width could be printed to yield 425±14 µm wide channels,
which indicates the lower limit of the width of the microchannel that could be fabricated by using this
particular printer. We also observed that channels should be oriented perpendicular to printing plane to
allow uncured resin to flow out of the channels.
International Congress on 3D Printing (Additive Manufacturing) Technologies and Digital Industry
3D-PTC2019
Ender Yıldırım
Ulaş Yaman
M. A. Sahir Arıkan