The development of the fabbster
Working in the field of Additive Manufacturing (AM) since 1996, AM was at that time only known as "Rapid Prototyping" for a very simple reason: It was far to expensive to produce anything else than prototypes. In order to change this, Sintermask was founded in 2009 to develop high performance AM systems for the industry.
We strongly believe that AM will be the leading production technology in the future if we can manage to change the design of goods from tool driven to function driven.
In 2010 we started to look into hobbyist DIY systems. A lot of different, more or less working, system concepts had been developed. Many of them were based on Arduino electronics and a lot were based on developments from the RepRap community, which are interesting systems for enthusiasts and geeks. professional writing services Making AM tangible for the masses is our mission -- Fabbster can do that job.
There are a lot of different basic concepts for 3D printing. We found that Fused Deposition Moulding, devolped in the 1980s by Scott Crump was an ideal basis for the development of a new system. Low demands for hardware and real functional thermoplastic materials combined with our expertise in software, application, material and machine manufacture.
The development of the fabbster 3D printer includes some fundamental new hardware innovations.
High quality for a low price is necessary for a stable and reliable 3D printer. With the multifunctional cassette system in combination with robust stainless steel rods, the assembly of the Fabbster becomes easier. Future extensions of the systems come to mind straightaway.
Sucessfull prints need hundreds and thousands of layers deposited precisely and reliably. Therefore a slipless traction system for the material supply was developed. Additionally to that unique feature, the profiled sticks can produce much higher pressure in the extruder than any other system used for 3D printing. The sticks are produced by injection moulding. A wide range of different materials and material combinations can be used. An automatic material supply system links the sticks together to ensure a constant supply of material sticks to the extruder.
The melting temperature for some plastics can be over 420°C (800 F), so we therefore decided not to use plastics in the extruder design. The heating wire, which is designed as double helix, and can easily be maintained without welding or soldering. Thanks to that, high power heating and an ultra short nozzle design is sufficient to melt all plastics with very low delay yield (stringing) and without extruder jams. The extruder is combined with a low noise fan and a PID control for reliable temperature management.