- Problems obtaining a suitable smooth finish, as the raw printouts are "plastery"
- The time required to post-process printed objects
- Difficulties in printing solid black ("greyish") and solid white ("yellowish") material
- Whitening of models due to excessive humidity affects on the hardening agent
You can watch a great video of the ZCorp printing process here. It's interesting to note that the video (and most others you'll encounter) do not show the post-processing work.
Clearly, not optimal. But still very useful, as many businesses do use ZCorp daily. We think (as Desmoda does) that this may be an opening for ZCorp's competitors to leverage.