ZR-71 grinder prototype - Page 20

#191: Post by **FotonDrv** » May 13th, 2015, 7:52 pm

day wrote:I would imagine that this might vary quite a bit depending on the grind setting?

Probably so.

May 14th, 2015, 9:01 am

neutro wrote:How fast can the grind settings be changed? Can the grinder "pulse" its settings many times while grinding a double dose? If so it might mix in the chute; or create many layers of alternating density. Might be better than a linear profile.

In manual ie. by hand, as quickly as you can press the button, in automatic it's a bit slower, but roughly twice a second or so. It does mix everything in the chute, but you have to remember that any static will wreck things quite badly, pulling most smaller particles and dispensing them last.

T.

#193: Post by **neutro** » May 14th, 2015, 12:23 pm

Then a pulsating electric field should mix particles of different size quite well

It would make a hell of a feature name too. "Does YOUR grinder have a pulsating field chute?".

That being said, I always wondered if having a larger grind distribution, but not too wide, would provide better packing of the puck. I have no idea what the results would be in the cup though, and in the end, that's what is really important.

May 27th, 2015, 6:53 pm

Here's a peak:

ZR-71 half-glory

Bottom is in bits as I'm having a few things corrected.

Rgds,
T.

#195: Post by **shadowfax** » May 27th, 2015, 7:50 pm

I'm afraid I can't grind that, Dave.

May 28th, 2015, 1:55 am

Great reference.

#197: Post by **bostonbuzz** » May 28th, 2015, 10:22 am

It's probably easier to have no weight on the beans (bird feeder principle) than a constant weight.

May 29th, 2015, 4:26 am

I've had better results with a weight on rather than no weight at all. I can always tighten the grind automatically during the end phase of the grind to compensate for any weight changes.

T.

June 25th, 2015, 3:12 pm

Some action:

Rgds,
T.

#200: Post by **Shife** » June 29th, 2015, 5:12 pm

Love it.