Aligning burrs

Sham

So I installed my new Mazzer burrs, they seem parallel but they aren’t perfectly aligned in their own axis when I spin them. When you tighten the 3 screws there’s a bit of wiggle room which causes this very slight misalignment of their axis. Is this actually something that needs to be controlled? It can be fixed easily by manually moving the burrs then tightening, then checking by manually spinning and repeat, but is a bit time consuming,

I think burr parallelism is the main issue with burr alignment which needs to be fixed else the grinds are uneven (the Mazzer is built so that this isn’t much of an issue) but I’m not sure about axis alignment. I drew a picture so its a bit more clear what I mean (not sure how to explain it properly).

DavecUK

Sham Ideally yes, try and get the radial alignment as good as you can by centralising the burrs to the carriers…on the basis/hope that the carriers are properly aligned to each other. It’s important in as much as like axial alignment (burr faces not parallel). It will widen the grind distribution.

MediumRoastSteam

I never thought about that… That the burrs can be misaligned on the horizontal plane too. And on that I wonder… Why aren’t flat burrs aligned with a shaft, similar to conicals? If that was the case then this would be a non-issue, and resolve a lot of alignment issues people seem to have with flat burr grinders?

Sham

MediumRoastSteam They can also just manufacture locating pins in the burr carrier and a corresponding locating slot in the burrs so that they can always be aligned… I’m guessing they don’t because it would increase the cost too much and also in most professional settings people don’t care.