Here is a test strip model with a psychedelic art pattern, printed with Binder Jetting 3D printing technology and 3D Systems VisiJet PXL.
At FacFox we call it ColorJet technology and CJP Fullcolor Sandstone material.
Colorjet 3D printing uses sandstone-like plaster as the material and a binding agent to fuse the grains together.
The result is a full-color model with great details and patterns that can be customized with different inks.
Compared to MJF full-color sample strip, the sandstone version is darker and coarse. The material has a lower rigidity, flexibility, and resolution. Dropping will definitely ruin the sandstone statue.
However, as it's quite cheap among all the full-color printing technology. This technology is ideal for creating realistic and eye-catching prototypes, mock-ups, figurines and avatars.
Solution
Step 1: As the default layer thickness is 0.1mm and sandstone prints have medium tolerance, the thickness of all the modeling details was examined to ensure they can all be printed out.
Step 2: A rolling batch left a uniform layer of sandstone-like powder. From there two printing heads passed over the batch, coloring and adhering to the object at the same time. The batch of powder then made another pass, until the object was completed.
Step 3: After printing, the butterfly was then coated with cyanoacrylate (super glue) or a different infiltrant to improve part strength and enhance the vibrancy of the colors. A secondary epoxy layer could then also be added to further improve strength and color appearance.