Support structures are always needed in SLA/DLP/LCD 3D Printing which are one of the most important safeguard for successfully producing 3D printed parts. Support structures are used for avoiding deformation and crumbling. As the support structures are produced as an inseparable part of the whole print, post-processing is necessary to remove the visual marks left on the part. Support Structures in Top-down & Bottom-up 3D Printing Support structures in top-down and bottom-up 3D printing are not the same: In top-down 3D printing, support structures are similar to FDM. They are needed for producing accurately overhangs and bridges. As they are no peel force/separation force (Click here to know more about peel force/separation force: How to Eliminate Z-axis Lines Caused by Peel Force/Separation Force? ) during the 3D print process, the part can be oriented in any position. In top-down 3D printing, the most crucial factors to consider is to minimize the amount of support t