There is really a growing field of rapid prototyping referred to as 3D printing. It entails an additive manufacturing approach where thin layers of material are built up on top of one another over minutes or hours of time. The supplies can contain plastics, photopolymers, and also some kinds of metals.

PolyJet Printers

1 such 3D printer is produced by Objet and it uses their proprietary PolyJet technologies. PolyJet 3D printing actually works in a manner similar to regular inkjet printers. The key difference is that the “ink” is in fact a liquid photopolymer that gets cured practically immediately by an ultraviolet lamp within the printer. Imagine a picture being printed on a piece of paper, but the picture has a measurable thickness to it. Now imagine thousands of slightly diverse pictures becoming printed on top of one another. Following a few hours, you actually have a 3D element that you can hold within your hand! This is incredibly valuable for engineers, artists, and also hobbyists who want or need to have components made in much less than 1 or two days.

Good quality

1 of the perfect features of PolyJet printing will be the top quality and accuracy of the models. Accuracy and precision are really related to common stereolithography (SLA) processes. The layers is usually as thin as 0.0006 inches, and functions which include walls and holes is often as thin as 0.0027 inches. The surface finish could be smooth and glossy, with no post-processing essential. This smooth finish is often a result of how the printer’s rolling pin levels out each layer because it goes along.


PolyJet 3D printers are office friendly, and they are roughly the size of a refrigerator. This is due to their effective and protected design. No lasers or messy cleanup are involved with these printers. Nevertheless, if a water jet is used to clean the parts, that will be take spot in a different location.

Print Heads

Two or much more print heads are included with every printer, and they include at the very least 192 tiny nozzles every. This permits a pretty wide channel of printing to happen in every pass, which increases efficiency and reduces print time. There is no less than 1 model print head and one help head in each printer.

Help Material and Cleanup

So as to print specific characteristics including overhangs, a support structure is necessary. PolyJet printers include not less than one help material print head to accomplish this. Instead of spraying the plastic-like model material, it sprays a gel-like material that offers a help program for the model features which might be larger up within the vertical direction. This makes it possible for the printers to make components of nearly any form, so long as it fits inside the machine. The support material is readily broken off by hand and then scraped off or washed off with a water jet machine. Cleanup is usually as quick as two minutes or so long as one hour for big components with several intricate details. Models also can be soaked in a resolution of sodium hydroxide for a half hour to help clean the components even additional.


Lower-end PolyJet printers may be purchased for $50,000 or less at the present time. For a lot of smaller providers or people that can not afford to invest in a printer, they can use a rapid prototyping services provider in their area to create their parts at a affordable cost.