Multi-jet Modeling (MJM) is the additive manufacturing process of a large industrial print head jetting material onto a build plate one layer at a time. The print head has many very small holes that jet droplets of build material and support material simultaneously to build your part one layer at a time. The material used is a type of photopolymer similar to the SLA process that requires a UV light to cure. You will find this type of 3d printing in a wide verity of business applications including dental, medical, jewelry, and manufacturing.
One of the major advantages of MJM is that the support structure is wax. This leads to a hands-off finishing process that requires an oven to melt the wax away, leaving your finished printed part. Also because the print head jets such small droplets, MJM allows for details in parts that are extremely small and precise. Printing a screen, similar to that on a screen door is quite easy for this technology. No other technology is able to achieve the level of detail that MJM offers.
Key benefits of MJM:
- Superior surface smoothness and fine feature detail without support scaring
- True to design exceptional internal geometry
- Fast, durable hard plastic parts
- Castable patterns
- 100% Real Wax precision high-definition patterns for direct investment casting applications
- Multiple finishing options
Note: if support (wax) is used, keep in mind that you need to have drainholes in your model.