The MJP process consists of a print head, platform, UV lamp, and a planarizer. Just like any 3D-printing machine, the process requires a 3D CAD file. The 3D printer then prints each layer of the file in UV curable liquid plastic onto a flat platform. The wax support material is also jetted to fill voids and other non-freestanding features. UV lamps solidify the materials, creating a fully cured plastic or wax part.Multi Jet Printing (MJP) is a new Rapid Prototyping process that provides a quick turnaround for smooth, high-resolution, hard plastic parts with complex geometries.
MJP Design Guides
Tolerances： ± 0.02 mm is standard.
Overhangs： Cleaning does not need manual work, only need to melt the wax, can clear the stent in 30 minutes.
Walls： MJP can manage very thin walls but QSY do not recommend anything under 0.3 – 1mm.
Mating Parts： Minimum 0.5mm gap between axel and bore or other moving parts.
Holes & Slots： We recommend a minimum of 0.5mm but the larger the better especially as wall thickness or depth increases.
Text & Engraved Details： Are at risk of closing up if not designed with 0.5mm > minimum height.
Pins & Embossed Features： Pins ≥ 0.8mm but even then risk breaking. Embossed features ≥ 0.3mm.