How to Align an EK43 Grinder 

At last someone said that.

absolutely, and be cautious of the hole, do it with a tool if possible, to cut a round aperture in the foil. When putting the bolts back, a good trick is always to turn counter clockwise with the screwdriver, until you feel the tick that teels you you are at the entry of the thread

This should be pinned!

Would you always want to put two shims near the screw, one to the left and one to the right of the screw, if you needed to raise the location around the screw? And what if you want to raise the area between two screws, as in the video, would you then want to use four shims in total (two for each screw placed to the left and right of each), or would it be OK to use two shims placed at the two screws on the side to raise?

Matthew Clark same applies for filter coffee as you want to get the most even extraction from the coffee as possible, if your burrs aren't aligned then you can't achieve it

For pourover not that much. Tho it will improve it

For the price you would expect perfection from the factory.

@@AlabamaTree Any mechanical apparatus may need some adjustment in time. I guess a new model will be perfectly fitted.or anyway within tolerances. What I understand is that having an even spacing all around does a lot for grain size eveness, and that on any grinder. I did a similar job, with the same logical that I find by myself, on a 1980 Gaggia MDF, and it does a very different job and noise now

@@IsaacOLEG still alignment problem with the new EK47s...

yeah if the alignment miss so much, one could not image that a good distribution would be achieved finally. All other mechanics would be just wasted.

The surfaces need to be polished so the grain flow well, I did as you sya because I was obliged to have thin enough grain, and the burrs did get huge streaks on their perimeter. ANd it did not work really well

If you are getting the burrs rubbing along all of their external circumference, you've gone as far as you can. The 'flats' may not be completely flat - either by design, or through their machining.

KP cadnzfin I have same question. Thanks for the video

Yes, it's necessary to align both burrs. When both burrs are misaligned, the lowest point of the top (rotating) burr makes contact with the highest point of the bottom burr and rubs off the marker. Aligning the bottom burr will make it so that the lowest point of the top burr makes contact with the entire bottom burr. This will cause the marker to rub off evenly on the bottom burr, but only the part of the top burr closest to the bottom burr (the lowest point) will do this rubbing. The goal is to make the entire top burr rub against the entire bottom burr, so that's what is done when aligning the top burr after aligning the bottom burr.

You cannot align the moving Burr, this is nonsense.

Frank Terranova Of course you can. What makes you think that?

Frank Terranova Of course you can. What makes you think that?

+crazybiscut sorry for the typo on my mobile

Scratching will create an uneven surface on the shearplate which will "catch" the sides on the slot of the burr carrier. Should make for a tighter fit.

when you making a cut on the metal, some part of the metal gets scratched off but it makes some of the part pops up.

The EK43 IS a commercial espresso grinder...

@@dlevi67 and you making this remark becouse? You do not have a clue :)

@@nagualemituje Neither do you (have a clue). I made this comment because the Fiorenzato F83 is effectively a Mazzer Major (mechanically); it is neither more nor less of a commercial grinder than the AK43, so I really don't understand your initial question. Do you want to try again?

@@dlevi67 no need, the previous statement retains as much value as did before.

@@nagualemituje I.e. nothing, as it doesn't make any sense. You don't even know what a clue is.

It would be much more costly to produce precision equipment like that though. Worked for an supplier that did parts for major vehicle manufacturers/brands. More precise tolerance demand = more tooling + more machines, more hands-on work, more QC, more rejects= big bucks. That's why Corvettes cost more.

Same question!

why not?

Fixed Burr is adjusted. Why do it again on moving Burr? Or we should play with moving Burr only. Do I get it right?

@@ginee7624 The adjustment of the fixed burr only gives you a setting where the highest point of the moving burr is in contact with all points of the fixed burr. Then you need to bring _the rest_ of the moving burr in the same plane. And @Frank Durra - of course you can (usually) align the moving burr. You can get it moving in a plane that is parallel to that of the stationary burr no matter the amount of mount run-out - the issue is that doing so will also move its axis, so you may end up with more (or less!) axial misalignment than before.