sextruder v4
https://www.amazon.com/Bowden-PTC-Fitting-5x-Printers/dp/B015ALICN0 Fittings
http://www.omc-stepperonline.com/gear-ratio-271-planetary-gearbox-dual-shaft-nema-11-stepper-11hs120674dpg27-p-133.html stepper
http://www.ebay.com/itm/2pcs-304-Stainless-Steel-Capillary-Tube-OD-4mm-x-3mm-ID-Length-250mm-/271980434337?hash=item3f534c13a1:g:0iEAAOSwHjNV7wbb Metal tube
http://www.ebay.com/itm/0-3mm-6mm-PTFE-Teflon-Tubing-Pipe-Translucent-AWG-OD-0-6mm-6-6mm-ROHS-lot-/322135617085?var=&hash=item4b00c76e3d:m:me1M18Wh738jkHM9Pmv8ccw PTFE (Pick 3MM ID 4MM OD)
http://shop.deezmaker.com/products/tatsu-v2-drive-gear-hobbed-filament-drive-gear?variant=2795843203 Tatsu v2 hob