Printers based on fused deposition modeling (FDM) use a thermoplastic filament, which is heated to its melting point and then extruded through a nozzle, layer by layer, to create the object. One of the main advantages of printers based on FDM is that they work with a wide range of materials.
Printrbot JR v2
The gross weight of the product when packaged, including all wrapping, and boxing.
3D Systems Cubify Cube
A heated build platform helps keep the lowest levels of a print warm as the higher layers are printed. This allows the overall print to cool more evenly.
The printer will automatically build extra structures to support the item as it is printing. The extra support can then be easily removed.
The 1.75mm filament diameter is gradually overtaking the previous 3mm standard. The 1.75mm filament feeds into the printer with greater ease and allows for more detail in the printing process.
The speed at which 3d objects are printed, measured in millimeters per second.
This feature saves time and effort in terms of maintenance, however the build platform itself still needs to be manually levelled.
More extruder heads allow you to use different colors and different types of material at the same time. A second extruder is also required to build PVA/PLA support structures around items as they are printed.
Hyrel Professional E5
Similar to regular 2D printers, this type of 3D printer mixes different colors between cartridges. This process allows the printer to reproduce the color spectrum, therefore allowing you to print in almost any color.
Polylactic acid (PLA) is popular in 3D printing as it cools and sets quickly. Unlike ABS plastic, it is biodegradable and therefore better for the environment. It can be used to build support structures for other printouts, as it can then be dissolved leaving no marks.
Polyvinyl Acetate is another form of plastic used in 3d printing similar to ABS. It can be used to build support structures for other prints, as it can then be dissolved leaving no marks.
The printer prints in ABS (acrylonitrile butadiene styrene). This is up to 30 times stronger than regular plastic and is commonly used in 3D printing.
The thinner each print layer is, the more detailed you can make your designs. Layer thickness is often also referred to as resolution and is measured in microns (µm).
Printrbot JR v2
27.5 x 27.5 x 30
This is the biggest size of object that you can print.
Bits from Bytes RapMan Education
490 x 500 x 850
The highest possible z-axis (vertical) resolution as measured in microns.
The device has a standard memory slot (such as an SD or micro SD card slot) so that you can either extend the internal storage with affordable memory modules or you can retrieve data, such as photographs, easily from a memory card.
With more USB ports, you are able to connect more devices.
The device is set up and ready to be used with the included software.