More than a few 3D printing-related companies have arisen almost by accident. A maker has a problem with a particular aspect of 3D printing, comes up with a solution to solve it, and then realizes that they can market that solution, leading to often-successful businesses. That was the case with 3D4Makers, a Netherlands-based filament manufacturer started by Jan-Peter Wille and his son Jasper. Frustrated with failed prints caused by moisture, the Willes developed a filament extruder that eliminates water from the cooling process, and found the filament to be so successful that they started marketing it. 3D4Makers now offers a large selection of standard and rare filaments including PEEK and PEI, as well as several unique materials they developed themselves. Read more at 3DPrint.com: http://3dprint.com/165626/3d4makers-filament-extrusion/