Resin(SLA/DLP/LCD) 3D Printing

Adding support is always a headache when it comes to photo-curing SLA/DLP/LCD 3D printing. A lot of times, there will be problems about support structures appearing in the 3D printing process more or less. A typical situation is that parts of the support structured are missing or even broken. How to solve this situation? Improper Parameters Most of the time, the missing or broken support structures are caused by improper parameters, mainly related to those following parameters. Contact Depth of Top The deeper the contact depth, the deeper the support tip inserts into the model. We need to confirm that the contact depth is deep enough to win the tug of war between the build plate and the FEP film in the bottom of the vat. With luck, it may result in deformation or misrun in the joint part between 3D model and the broken supports. If you are unlucky, there is only the raft/bottom and support structures on the build plate while the model is not printed successfully at all. Also...

For a bottom-up stererolithography 3D printer, the most common failure would be the adhesion problem which means that you only get support and raft structures on the build plate after 3D printing instead of the intended object. In this case you will see part of the model still sticking to build plate and part of it sticking to resin vat. Though this experience is so frustrating, sometimes you even get nothing on the build plate and only raft/bottom sticking to resin vat. So before solveing this issue, let’s make clear why the raft/bottom is not sticking to build plate first. Most of the reasons why the raft/bottom is not sticking to build plate are related to the build plate and the first layer. If the build plate is not flat, you will likely have adhesion problems and possible failures especially when you are attempting large prints. The slant raft or bottom may cause the failures for the generation of supports. Then the print job fails. Besides, if the distance between the scr...

Usually, it is impossible to avoid using 3D printing support structures for overhangings and bridges as it might affect the quality of your print. When selecting the suitable support settings, your print have achieved half of success. But do you know what's the best support settings for resin 3D printing? The name of support settings maybe differ according to various slicers. In order to have a better understanding of those settings, let's take Chitubox as an example. Download ChiTuBox:  https://www.chitubox.com/download.html The support settings of ChiTubox, as illustrated below. 1. Raft Raft is the first layer which is also called attachment layer as the primary purpose of a raft is to help with bed adhesion. The raft is printed directly on the platform, then the object and support are printed above the raft. The exposure time for the rafe is at least 10 times the regular exposure time to make sure that any potential gap between the build platform and va...