Teaboy I would definitely be interested to see if it de lugs like the old one I had.
The lugs are the same and I ground more than 2 kilos in one and no lug wear whatsoever. Tolerances are really tight now, they have absolutely no lateral movement, so very nice indeed, the improvements made a big difference.
If your worried about the lug wear photos….I can only thing either:
- The unit was defective in some way I cannot explain
- the motor unit was turned the wrong way to lock sometimes
For the second point, with with a grinder reasonably full of coffee (even not so full I guess), the motor unit will move ¼ of an inch or so anticlockwise in the locking direction (motor torque when grinding). The lugs partially engage and as the motor continues applying torque the whole motor unit pulls downward on the lugs with great force, nibbling them away starting at the front leading edge and gradually working clockwise.
The first time the damage happens, it makes it increasingly more likely each time the motor is locked in the wrong way.
The above are the ONLY 2 things that can cause it. My bet would be with the 2nd being inadvertently done so the user is completely unaware they have done it. I have caught myself on many occasions locking itself in the wrong way as I always do a brief gentle upward pull of the motor unit (if it pops out, it was in the wrong way).
You might say that’s impossible, I would know, but with beans in it and the motor/burr breaker resistance, turning it the wrong way can feel as if you’re locking it in.
I know this post might upset the person posting the photos, but it is what it is….I can only apply science to the problem and give the only 2 possible explanations. If you look carefully at the photos of lug damage, it’s not from lateral torque, but downward force. This downward force cannot happen with the motor unit locked in properly, because it is flush/touching with the main body and nothing can move down to wear the top of the lugs.
I’m currently testing the grinder just for espresso, it can do filter really well, no question about that….it’s whether it has the adjustability and grind quality to deliver on espresso as well. I will know this in a few days. It is important to note, espresso will be a 3m grind time, filter about 1m 15s…but you press a button and let it do it’s thing and it stops automatically.
I thought long and hard before making this post…but it’s a very good grinder and great value. I don’t get anything for saying this and it would be a shame to overlook it. I actually took the prototype to @MWJB as I didn’t have the revised production one at that time. Mark has a lot of hand grinders…so he can make his own comments.
