by HB on Mon Nov 21, 2005 12:15 pm
I sometimes use the Macap auto-tamper during testing when I'm feeling really persnickety about tamp pressure and level. But one problem with the level is many portafilters have curved bowls (like Elektra's), so the correct level of the tamp is again dependent on you holding the handle at the proper angle. Not all portafilters will fit either. For example, I had to remove the spout to fit the portafilter for the Cimbali Junior. On the other hand, Junior's portafilter has a perfectly flat bottom, which is ideal for an auto-tamper. Bottomless portafilters work nicely too since they have flat bottoms, though the fork becomes more of a "platform" than rest.
The Macap/Elektra dynamometric tamper is a very finely crafted piece of machinery. The suspect review I mentioned earlier derides the solid aluminum and black powercoated frame of the Macap, implying it is inferior. I disagree; its construction, movement, and precision are top-notch.
EDIT: Note that the Macap auto-tamper piston is 56.5mm, not 58mm. If you want a really tight fitting piston, Reg Barber may be able to fashion one for you. I simply tamp multiple times in a NSEW pattern to hit all the edges.
Dan Kehn