3d printers

Plans
http://www.ebay.com/itm/DIY-plastic-injector-mold-machine-PDF-PLANS-/281443092333?pt=LH_DefaultDomain_0&hash=item418750c76d pdf plans on injection molding machine

http://www.ebay.com/itm/281450613268 3d delta printer, plans in solidworks format

http://www.openbeamusa.com/blog/2014/5/22/stay-classy-makerbot Links to delta printer

https://www.kickstarter.com/projects/deltamaker/deltamaker-an-elegant-3d-printer-0/posts/555370

http://www.deltamaker.com/

http://www.inventapart.com/ https://www.kickstarter.com/projects/1650950769/rigidbot-3d-printer?ref=discovery
 * http://www.emakershop.com/browse/listing?l=964 Prusa parts list

3dmonster
http://www.3dmonstr.com/

https://www.kickstarter.com/projects/breytblat/3dmonstr-large-industrial-grade-quad-extruder-3d-p 40 microns

extruders
http://www.dglass3d.com/

http://www.ebay.com/itm/Makerbot-Replicator-2-Delrin-Plunger-Extruder-Upgrade-Kit-Printed-version-/121103618952?pt=LH_DefaultDomain_0&hash=item1c32569388 Makerbot Delrin plunger, see http://www.3dprintingstore.co.za/extruders-hotends/minimalist-extruder-kit-for-1-75-3mm-filament/

http://richrap.com/?p=121,   http://www.thingiverse.com/thing:23775  Dual extrusion

http://e3d-online.com/The-Kraken

3d Delta
http://www.thingiverse.com/thing:287103  http://www.electronhacks.com/category/electronics/3dprinting/
 * http://us.misumi-ec.com/vona2/detail/110300465870/?KWSearch=HFS3-1515&catalogType=00000034877 Aluminium extrusion

Build logs
http://www.danielhansen.net/2013/10/reprap-3d-printer-prusa-i3-build-log.html

Lego
http://www.hpi.uni-potsdam.de/baudisch/projects/faBrickation.html

3d designs
http://repables.com/

http://www.thingiverse.com

Filament DIY
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/

Gear maker
http://www.plagear.com.tw Plastic gears

3d
http://www.3d-printer.co.za

http://www.ultraflow3d.co.za

http://www.sumpod.com/

http://www.indiegogo.com/projects/sumpod-3d-printer-and-mini-cnc-round-2

3D-Manufacturing
http://www.thingiverse.com/thing:7975

You might also want to mention: RepRap -- http://reprap.org Fab@Home -- http://fabathome.org and Thningiverse - http://www.thingiverse.com

Also, even though it's not 3d printing, shopbots might also be worth a hat-tip.

Bearings
http://www.instructables.com/id/Nylon-Printable-608-Ball-Bearing/ Nylonn printable ball bearings