Quoted from dmacy:I’ll have to check out that funnel idea. I’ve gone through 3-4 of the FA ones too but you can get the bearings for motors which seems to be the issue. I’ve been saving the old units and harvesting parts to make good ones from broken ones too. Should have really invested in good ones with the money spent. But for casual use they’re good.
I did the same and after going through three of the cheaper FA tumblers (multiple different failures including the bowl failing) I finally learned my lesson. I ended up buying a Thumlers industrial UV-18 and have never been happier.