About 3D printing

There's a whole range of 3D printers out there. I focus on two types only:
1. Stereolithography (SLA)
The the classic 3D printing technique falls under this category. A little nozzle prints a resin layer by layer to create a 3D model. This is the most economical way of 3D printing but doesn't give the best results.  
2. Selective Laser Sintering (SLS)
Using this technique resin dust is fused together by a laser to form a solid, three-dimensional object.
The final result is far smoother (as seen on the picture above) and due to the surrounding dust each newly printed are is always supported. This makes the highly complicated shapes as seen on my website possible.