The hario skerton did prove itself at fine grinds.....
But it seems the coarser you get on settings the more the burr shakes while grinding....
I would need your help to stabilize the burrs so that they perform well in fine, medium and coarse settings....
Thanks for helping me
My skerton (newly bought 3 days ago)
A pic of somebody elses mod (although theres no instructions by the poster) .....
I cant currently get an OE lower bearing since im in a country that they dont ship to......
Last edited by RayTCoffeePro; 16th September 2014 at 11:25 PM.
Hello Ray, Since no-one else has responded here, I'll chip in with my two cent's worth.
I have a Skerton, and at one time I looked into mods to use it with an Aeropress or a plunger. I never actually did any mods, because the Hario became my Decaf grinder, and as you have noted, it works well for fine grinds. Also, on their web site O.E. say that while their lower bearing gives a better coarse grind, it reduces the quality of finer grinds. Not sure exactly how or why, but it seems that it does. Whether other mods like the one in the pic will do the same, I don't know, but they might.
Apart from the O.E. bottom bearing, the other mods I found were all similar to the one in your pic. They all used nylon or teflon bushes on the main shaft to reduce wobbling of the inner burr at coarser settings.
The ID of the bush (or bushes) need to be a firm, but not tight fit on the shaft, and the OD needs to be a tight fit in the hollow centre column of the grinder. The inside of this column is slightly tapered, which makes it a bit more difficult.
One method uses two short bushes with the same ID, but different OD's. One that fits into the top of the column, and a slightly larger one to fit the bottom. The one in the picture seems to use a rather complicated combination of bushes and washers to get the same effect.
The version I liked was a single long bush tapered to fit tightly into the column from top to bottom and extending down the shaft to just above the burr. However this would require the tools and skills to machine the bush so it will match the taper inside the column.
Because the shaft is larger in diameter at the top than at the bottom, the burr has to be removed so the bushes can be slid onto the shaft from the bottom.
An entirely separate issue I had with the Skerton was that the handle would come loose while grinding, but a lock washer under the handle nut has fixed that.
Thanks Deegee, Hmmm I'm on the hunt for another travel grinder......
Like back then where I've upgraded from a gaggia mdf to a Mazzer Mini this time its for manual grinders
Ray OE ship to the uk don't they
Not in uk though right now im on trip to North Sumatra.....
And thats why im using a hand grinder.....
stabilising the lower burr can never be 100% in line with the upper burr. the skertons design was intentional in making the bottom burr have some play so that on smaller grind settings the play will result in the beans making the distance between the burrs almost certainly consistent, while a the OE kit will force it to be slightly off (.01mm off will mean a .02mm variation in outlet distance - which, when grinding filter does not matter nearly as much as when grinding for espresso)
Originally Posted by deegee
unfortunately i cannot think of a hand grinder that can give a good, even filter grind size out of the box. they all seem to use a similar mechanism to adjust the grind sizes and secure the top and bottom burrs (i have heard reports of the porlex being 'better', but from eyeballing the insides of the grinder cannot see why it would be). The lido or lido 2 would be your best bets? but... the lido is out of production and lido 2 is having supply issues at the moment. which leaves the rosco, but that's alot more expensive. (comandante was another option but saw some problems with burr manufacturers?)
The way to upgrade a skerton is with a Lido II. We have confirmation that they're the water with an early to mid October ETA. We'll reopen preorders later this week: OE Lido 2 grinder | Talk Coffee