Turns out it was the handle knob on mine too! If only I'd paid a bit more attention as I'm sure a bit of kitchen oil would've been fine for that part. All greased up and ready to go now - no more annoying my office with spine-tingling squeaks.
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Precision Hand Grinder help!
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Hi Otago,Originally posted by Otago View PostHave a look at the funnel ring on the top of the grinder and make sure it hasn't come loose. It doesn't seem to do anything to contribute to a squeaking noise but does make such a noise when being screwed in, so maybe worth a look.
Other than that I can't suggest anything other than the lube suggested by Yelta.
I managed to drop mine last week and while trying to straighten out the ding dropped it again and put a ding in the other side. Why wouldn't it land on the top rather than the bottom?
Pretty much now out of action unless I can find a slip-on catch can to replace the screw-on one.
Decided to stretch the budget a little bit for a replacement and have ordered a Made by Knock Aerspeed which is a cheaper version of the Aergrind but with more aggressive burrs aimed more at pour over/filter grind. £75 plus £17 freight ends up at $175 landed. A good little grinder with nothing of similar quality/performance that I have identified at that price point.
I ordered an Aerspeed directly from Made by Knock last week, awaiting delivery. Just wondering how long did the delivery take for yours (apparently some buyers in the past had to wait up to 2 months!)? Also how's your experience with your Aerspeed overall? there seem to be some reports on shaft misalignment, dial slippage while grinding, etc on some units, suggesting QC issues? thanks Mo
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Precision Hand Grinder help!
Hi Mo
Firstly, sincere apologies for the delay in reply. I somehow missed your post.
Hopefully you have received your grinder by now. I can't recall the exact time for my delivery but think it was within the expected 9 - 11 days. I think you can experience delays if you just happen to order when a batch runs out.
There is some runout with the inner burr but this pretty inherent in a design that still fits 38mm burrs, without a bearing below the inner burr, into a grinder that will store within an Aeropress piston. But I believe the performance is still on par with any other grinder on offer in this performance/price bracket.
On the issue of shaft misalignment I haven't personally experienced that with my Aergrind, nor the Aerspeed. There has been some comment about the outer burr in the Aerspeed being differently secured than in the Aergrind. The Aergrind appears to be a press fit whereas the Aerspeed is retained with a grub screw on one side. There are some claims that this results in the Aerspeed outer burr being pushed out of concentricity. I am not about to remove the outer burr to see if there is any substance to these claims as my Aerspeed is operating satisfactorily. If there was enough play to allow this to happen a shim opposite the grub screw would rectify the issue, but I doubt that there is enough looseness in the tolerances to allow this to happen.
As to adjustment dial slippage this could happen if an o ring on the central shaft is a loose fit. You should have received spare o rings in your package labelled standard or stiff. I suspect mine was fitted with a stiff o ring as I had the opposite problem with the adjustment dial being too stiff to turn. However, I was able to rectify this with some Dow 111.
I wouldn't disassemble the grinder if you are not very confident with mechanical issues, but if you feel so inclined the following thread on the UK coffee forum contains some parts diagrams that might be helpful. https://coffeeforums.co.uk/topic/390...issing-o-ring/
Hope you have received your grinder by now and that you are happy with it. While it does seem that some have problems, the overall impression from comments on various forums is that most owners are satisfied with their purchase.
Cheers.Last edited by Otago; 15 December 2019, 09:11 PM.
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Very timely that people have bumped this thread up. I'm not sure what's the correct term for my issue. In the past week, the grind settings on my Precision Hand Grinder haven't remained consistent.
For example, I will turn the dial until it stops, and it might fall on number 8 or 9. And then the next time I use the grinder, it might fall on 0 or 1.
I will usually use where it stops as the reference point to start my clicks, but I noticed if it falls on 8/9, 24 clicks is coarser than if it falls on 0 or 1. Then at times, 15/16 (which is med-fine on this grinder) will grind coarser. I've also found when I grind coarsely that bits of beans get stuck between the burrs.
I noticed that this could be due to the nut on the top (under the handle) being a bit loose. Should I tighten this more?
I really love this grinder and hope it doesn't need to be replaced. Had it for around 4 months and use it 3 times a day.
The manual, as posted by another member, is here - https://coffeesnobs.com.au/documenta...er-manual.html
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Hi Otago,
Many thanks for your detailed reply, very informative. Thanks!
I received my Aerspeed a while ago and overall I’m happy with it so far. However, If I want to be critical, there are two things that I’d appreciate to have your comments on them.
- If I hard lock the burrs (zero setting), where the crank cannot be rotated anymore, I expect the burrs to sit flush in line with each other, in mine the inner burr stays slightly out of the outer burr. I can feel with my finger nail a step up at the edges of the inner burr. I’m hoping the burrs sit flush once they broken in over time?
- I mostly brew for V60 and French Press so grind consistency at coarser grinds is more important for me. Zero setting in my Aerspeed is @ 10. If I open up the burrs by 2 notches (so the pointer on the handle is @ 12 now) I can rotate the crank and feel the burrs are rubbing against each other for about ¾ turn then rotate free for the remaining ¼ turn. Apparently there is a burr wobble here. By reading several threads in different forums, I’ve now convinced that some burr wobble is normal in almost all grinders. Now If I keep opening the burrs by 8/12 turn (so the pointer is on 8 now), the burr rub is completely gone. I guess it would be lessened over time when the burrs get seasoned a bit, just don’t have any reference to understand whether that much rub is excessive or is just normal? I read somewhere else that MBK considers any burr rub at below ¾ turn to be completely normal (and in fact inevitable), but not sure how reliable is this statement? Wondering what’s your thought and if you’ve ever noticed any burr rub in your grinders at all? Thanks again!
Last edited by Motalebi; 17 December 2019, 12:34 PM.
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Hi Melon
You might have hit on the possible cause of your varying grind settings when you mention grounds being stuck between the burrs. I was going to suggest that, when making changes to grind settings, you turn the grinder upside down and rotate the burr anti-clockwise to first dislodge any grinds remaining between the burrs.
As to the top nut, even when this is screwed down to its stop point there may still be some end play. Be aware that this is a LEFT HAND thread.
Hope this helps. These are a great little grinder and real value for money.
Cheers.
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I found I could slightly reduce the burr rub by changing the position on the top bearing carrier.
So I found the setting that is just started to rub, then moved the top carrier to a spot that the rub was gone, then repeated a few times getting finer each time. A dab of superglue to hold it, and that's about as good as it can get
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Thanks Otago! I am finding the stuck grounds more of a common problem. I didn't have this issue until in the last week. Also, with the top nut coming loose, it looks like it causes the bottom burr to drop a bit so the grinds end up coming out coarser than what's been dialed. I'll have to think about a way to keep this held - perhaps the suggestion of super glue. Thanks!Originally posted by Otago View PostHi Melon
You might have hit on the possible cause of your varying grind settings when you mention grounds being stuck between the burrs. I was going to suggest that, when making changes to grind settings, you turn the grinder upside down and rotate the burr anti-clockwise to first dislodge any grinds remaining between the burrs.
As to the top nut, even when this is screwed down to its stop point there may still be some end play. Be aware that this is a LEFT HAND thread.
Hope this helps. These are a great little grinder and real value for money.
Cheers.
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After letting Alternative Brewing know about the burr issue, they'd very kindly and quickly sent me a replacement grinder.
However, annoyingly and only a month after receiving this replacement, the knob attachment came off while I was grinding.
There is a hole underneath which makes me think a pin holds the handle and knob in place. See attached photo.
Could someone with this grinder please let me know how these 2 parts are attached?
I looked everywhere around my kitchen for a pin but couldn't find one.
I've let AB know about the issue.
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Yeah it’s a pin. As seen here -Originally posted by melon View PostAfter letting Alternative Brewing know about the burr issue, they'd very kindly and quickly sent me a replacement grinder.
However, annoyingly and only a month after receiving this replacement, the knob attachment came off while I was grinding.
There is a hole underneath which makes me think a pin holds the handle and knob in place. See attached photo.
Could someone with this grinder please let me know how these 2 parts are attached?
I looked everywhere around my kitchen for a pin but couldn't find one.
I've let AB know about the issue.
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