HomeRoast Digest


Topic: Cunill Tranquilo mod, was Re: +How important is a good grinder (29 lines)
1) From: Ken Mary
<Snip>
I do not understand how an inanimate object can be unhappy.  :-)
But I am familiar with the "zero shift". This made ME unhappy, so after
thinking about it for a few months, I fixed it. I borrowed the idea from
other grinders that have the upper burr spring loaded, forced to its
uppermost position. Without spring loading, the upper burr will rise and
fall the distance equal to the play in the burr carrier threads. The true
zero does not really shift, the burr spacing changes with the amount of
grounds between the burrs. Those grinders with the spring loaded burr or my
Cunill mod will have burr spacing unaffected by the forces exerted by the
coffee grounds.
The Tranquilo design makes a spring difficult to install. But a ring shaped
piece of one inch thick dense packing foam works great. The foam fits under
the plastic cover which has the adjustment steps. The foam does make you use
more force to change grind setting. Remember to always have the grinder
running when reducing the grind size. But there is another benefit to using
the foam, the locking button can be removed making the adjustment
"stepless". The foam has enough friction to hold the adjuster in place,
although it does oscillate a tiny bit during the grind, maybe one tenth of a
step. I have no pictures but this mod should be easy for those mechanically
inclined.
--


HomeRoast Digest