Too Much Coffee

Hi everyone,

I'm trying to design a small conical burr grinder and would appreciate all input regarding grinding issues, what annoys you in the most popular grinders and what you would like to see in them. My list of 'wants':

- no grind retention
- quiet
- small
- easy to adjust
- doserless

so far I've got this:

[img removed]

The idea is to support the rotating shaft in two places and use an adjustable (up/down) carrier as the upper burr support.

Any suggestions, advice welcome.

Regards,
dsc.

Hello dsc, your project looks brilliant - have you documented it elsewhere? The thing that really gets me with mine is the huge steps in adjustment - I'm thinking about making a worm drive adjustment and trying to spring load the burr adjustment or otherwise take out the play to get the exact grind.

What I'd like to see in a grinder is very fine adjustment that could possibly be 'disengaged' when wanting to change it massively (french press to turkish for example).

I'd love to see more of this project

When talking about disengaging the drive, this was what I wanted to reference

http://www.parttimeprojects.com/audio/d ... ars_01.JPG

From this webiste

http://www.parttimeprojects.com/audio/d ... ebpage.php

I can't help you but you have your first customer when it's ready to retail

Being easy to clean, inside and out is also important to me

You might consider putting the inside thread (female} of your adjustment rod through a spur (flat)gear. Then that gear could be rotated by a pinion which could be disengaged from the driven gear to make a major change. Large gear with a large knob and small gear with a crank. Lift up the crank and then turn knob to make a major change.
Try Small Parts Inc. you will have many similar on the continent.
http://www.smallparts.com/b/16310181?se ... =salesrank
Cheers
-Richard

Grind retention and static are the two issues that I dislike the most. One thing that I find very odd is that certain beans produce static while others are totally static free. Monsoon Malabar is a static monster for me.

Totally Ziemas, we hate it when the grinds come out at an angle because of the dosing system and then with the static end up everywhere as well.

Ive never understood why static is so much of a problem to solve, surely you just ground the area the grinds come into contact with (the burrs perhaps?) and no more static?

Skippy wrote:Ive never understood why static is so much of a problem to solve, surely you just ground the area the grinds come into contact with (the burrs perhaps?) and no more static?

I agree - this is how I'd imagine the problem to be solved!

I'm so stupid ...... off to grind the entire kitchen now

Grind the entire kitchen!?

DrTom wrote:Grind the entire kitchen!?

You said it, mate; "surely you just ground the area the grinds come into contact with..."

Edit: added additional quote for the younguns, who might have trouble understanding.

CakeBoy wrote:I'm so stupid ...... off to grind the entire kitchen now

hehe

CakeBoy wrote:I'm so stupid ...... off to grind the entire kitchen now

And now you ken the advantage of a dirt floor. Already ground.
-Richard