Arcol Hyena v1.1
Available at: http://shop.arcol.hu/item/hyena
History (v1.0)
For previous v1.0 announcement, read here:
http://blog.arcol.hu/?p=1920
and here:
http://www.thingiverse.com/thing:22369
V1.1 update
This is a minor, but really handy upgrade to hyena.
At one end it has 6mm flats for wrenches. So no more pliers to holding while putting the big gear onto the shaft.
This is how it should be mounted (flat end is the opposite one from big gear):

Here is a closeup of the two flat sides:

Here is how you should put the big gear onto the hyena:

Also here it is mounted on the extruder pusher:

(Note the M8 nut with M3 grubscrew! It is *really* useful)
Hyena: http://shop.arcol.hu/item/hyena
M8 nut with M3 grubscrew: http://shop.arcol.hu/item/m8nutm3
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