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MakerBot Print is our newest print-prepration software, which supports native CAD files and STL assemblies,
allows you to interact with all your printers via the Cloud, and many other exciting new features.

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Hi! Very nice project, I've already started to print parts... I've a question about BoM: Why there are 5 stepper and 4 drivers? Am I misunderstanding something?

I've also a question about hotend because I'm quite confused on what to choose. :-(
Can you explain me the difference beetwen the following items, and which would fit on toyrep?
Thank you in advance.

1) "E3D v5 direct" - http://www.ebay.it/itm/Estrusore-E3D-V5-all-metal-Hot-end-j-head-kit-Prusa-RepRap-DIRECT-Extruder-/262814443384?hash=item3d30f62778:g:gjsAAOSw5cNYgKeLhttp://www.ebay.it/itm/Estrusore-E3D-V5-all-metal-Hot-end-j-head-kit-Prusa-RepRap-DIRECT-Extruder-/262814443384?hash=item3d30f62778:g:gjsAAOSw5cNYgKeL

2) "short range" - http://www.ebay.it/itm/J-Head-Hotend-0-4mm-Nozzle-1-75mm-Short-Range-3D-Printer-Makerbot-Extruder-BI94-/192069129027?hash=item2cb8365343:g:lzMAAOSwUKxYa-dO

3) "short distance", I've seen a difference on the top hole in comparison with 2) - http://www.ebay.it/itm/3D-New-Metal-J-head-Extruder-Kit-Short-Distance-per-3D-printer-with-wire-TE429-/172521890903?hash=item282b1b2457:g:iJAAAOSwjDZYm1tW