New version Ultra grinder

Grinders are one of the keys to exceptional espresso. Discuss them here.
Sloom74
Posts: 6
Joined: 1 year ago

#1: Post by Sloom74 »

Hello guys, I ordered the ultra grinder from China from Mr. Zhang, and here are some pictures. There have been some changes to the design






Sloom74 (original poster)
Posts: 6
Joined: 1 year ago

#2: Post by Sloom74 (original poster) »

There are some changes: the body became one piece, the portafilter carrier was changed, and a spring was placed under the four bars to adjust the alignment of the upper carrier by tightening the lower screws.


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Jeff
Team HB
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#3: Post by Jeff »

What is the current draw with the motor running and no beans?

Sloom74 (original poster)
Posts: 6
Joined: 1 year ago

#4: Post by Sloom74 (original poster) replying to Jeff »


Hi Jeff I don't know how this is measured

Pressino
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#5: Post by Pressino »

Have you checked retention? It looks as if the burr chamber has a bit of room to accumulate grinds.

Mbonus
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Joined: 9 months ago

#6: Post by Mbonus »

Sloom74 wrote: Hi Jeff I don't know how this is measured
I'm not Jeff - but you could probably use a killawatt electic usage meter.

https://www.amazon.com/P3-P4400-Electri ... 9MDBU?th=1

Sloom74 (original poster)
Posts: 6
Joined: 1 year ago

#7: Post by Sloom74 (original poster) »

Pressino wrote:Have you checked retention? It looks as if the burr chamber has a bit of room to accumulate grinds.
It's 0.1 retention is negligible

Sloom74 (original poster)
Posts: 6
Joined: 1 year ago

#8: Post by Sloom74 (original poster) »

Mbonus wrote:I'm not Jeff - but you could probably use a killawatt electic usage meter.

https://www.amazon.com/P3-P4400-Electri ... 9MDBU?th=1
I hope I can convey the information, because of my weak English. I think that Mr. Zhang solved the problem by installing a washer with a thickness of 0.1 above the washer to adjust the height of the lower carrier from the column by 10 microns, as I understand it.