Filament extrustion

filastruder
Polyamide PA 2200 http://www.direct3dprinting.com.au/nylon.html, http://www.soliforum.com/topic/6014/nylon-pellets-for-filastruder/ ,  http://www.soliforum.com/topic/3935/polymer-extrusion-a-brief-tutorial/
 * http://www.filastruder.com
 * http://www.filabot.com  (available on aliexpress china)
 * http://www.ebay.com/itm/ExtrusionBot-KIT-Filament-Maker-Extruder-for-3D-Printers-/121463096250?pt=LH_DefaultDomain_0&hash=item1c47c3c3ba
 * http://www.extrusionbot.com/
 * http://reprap.org/wiki/The_incomplete_reprap_beginner%27s_guide Links to links on kickstarter

https://www.kickstarter.com/projects/1574214560/desktop-plastic-extrusion-system-for-everyone

https://www.kickstarter.com/projects/1096453211/strudittle-a-tiny-fast-precise-low-cost-filament-e?ref=live

http://www.b3dprintjobs.com/ $275, cheapest system

https://www.smashwords.com/books/view/437665 Build your own filament extrusion book

instructables
http://www.instructables.com/id/Build-your-own-3d-printing-filament-factory-Filame/