Various technologies are available to print your 3D objects and all of them involve the model being printed in layers. Once one layer is ready, the following layer is printed and the process is repeated until the object is complete. AMR Europe’s 3D printing systems use DLP, MEM or SHS technologies. Each technology has its own properties and area of application. A short description of these technologies can be found below.
Digital Light Processing (DLP)
DLP is a technology that involves using a projector to harden photo-sensitive resin. An extremely thin layer of resin is applied to a film after which the projector hardens an entire layer of the model in one go. Another layer of resin is then applied to the film and the process is repeated. In contrast to many other technologies DLP involves constructing the model from the bottom up. DLP uses extremely thin supports for the overhanging parts of the model. These supports can be removed easily after printing.
Works using photo-sensitive resin and a projector
Support structure : Yes
Minimal layer thickness : 0.0125 mm (12.5 µ)
MEM is a technology in which thermoplastic synthetics (such as ABS or PLA) are heated in a print head to liquefy the material, after which an adjustable nozzle applies a thin thread of material.
As soon as a layer is ready, the print bed drops one layer thickness and the next layer is printed. This process is repeated until the entire model is constructed. The popular term for this technology is FDM (Fused Deposition Modelling). It is one of the most used technologies.
The Inspire and DeeRed 3D printers have 2 nozzles, enabling support materials to be applied at the same time as the build materials. The supports must be removed after printing. AMR Europe has support materials that can be removed with water and without the application of chemicals.
SHS is a printing technology that works using a thermal print head to apply heat to layers of powdered thermoplastic. The powder is fused by the print head according to the contours of the model.
Once a complete layer of the model has been fused, a new layer of powder is applied and the process is repeated until the entire model has been constructed.
This technology does not need support structures as the powder that is present functions as such. Any powder that is not fused (and thus functions as support material) can be reused.
The technology is comparable to SLS but uses a thermal print head instead of a (more expensive) laser.