Summary

Mount for E3D All metal hotend on Johann`s Delta Rostock. I placed
some center nuts,then it will automatically center and you can easy
insert the screw.
Fit also on E3D V6
16/12 2015 Just uploaded a fan Mount file for a 40mm fan. lease check it before use. I have a small spacer betweee the effector and the Mount (1mm)
The Fan is from :
https://www.caseking.de/en/noiseblocker-blacksilent-fan-xm-2-40mm-luno-019.html

Instructions

Cheap E3D V5 Hotend..
http://www.aliexpress.com/item/FreeShpping-Short-distance-3D-Printer-J-head-Hotend-for-1-75mm-3-0mm-E3D-Bowden-Extruder/2042075836.html

NOTE. There are NO PTFT inside the Hotend. Use this link

http://www.aliexpress.com/item/Free-Shipping-5pcs-lot-white-tube-inside-good-quality-M6-26-printer-nozzle-throat-For-Reprap/1873795372.html

E3D V6 Hotend.. Work out of the Box.
http://www.aliexpress.com/store/product/1-75mm-3D-Printer-Upgrade-V6-bowden-extruder-Reprap-E3D-V6-All-metal-J-head-Hotend/1051583_32270032539.html
NOTE: There can be small variation from the EU model

E3D V5-V6 Delta Rostock