Eiron wrote:It's kinda overkill for the home user (not that that means anything to folks here ), but here's a view of Versalab's optimum operating setup. When you combine the grinder, hoppers & press, you can see how they're really designing for the commercial environment. They even 'splain some of the M3's advantages on their In the Coffee Shop web page. Surprisingly, most cafe owners (that I've talked with) haven't thought about any of these things!
This is incorrect. The grinder is not built for either heavy espresso use, or for grinding lighter roasted, harder beans such as used for cupping or brewed coffee.
-- The drive belt is not notched as in the original DRM grinder; so it will slip.
-- There is only a single sleeve bearing on the drive shaft, and it is so far away from the leverage created by the grinder burrs, that it warps. The rotation gets stiffer, goes off-center, and then freezes up completely.
-- The connection between the drive shaft and the large pulley wheel is not keyed, so it will also slip.
-- Finally, the grind adjustment is also prone to slippage, since it is not spring loaded and the single set screw has to be torqued very hard to secure it.
IMO, while the functional design of this grinder is very original and promising; the nuts and bolts production design is hopeless. It needs to be redone completely before I would recommend this grinder for either home or limited commercial use.