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By TimepieceTinkerer · Posted
Thanks for the reply! The problem is that the barrel arbor doesn’t stay centered inside the mainspring. When I insert it, it feels like it doesn’t catch properly, and as a result, it sits off-centre. Also, on the other side of the barrel, the arbor’s pivot doesn't protrude far enough—it should stick out long enough to engage and keep the full barrel assembly stable, but it doesn’t. You can see this clearly in the photo. Thanks for pointing out the raised section of the mainspring between 9 and 12 o’clock—I hadn’t noticed that earlier. I might be able to sort that out, but I’m not sure it’s the cause of the problem I’m facing with the arbor fitment. Appreciate any further suggestions! Thanks again, TT -
Got it off amazon, brand is Harfington. I just measured and it measured at 31.37mm diameter and 1.01mm thick. The original measured at 1.22mm thick. Maybe I should have ordered from esslinger. Gonna fix that now.
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By nickelsilver · Posted
I have the pro version from Frank (praezis). I use it with an old Vibrograf mic, and it's easily as good or better than my Witschi S1. -
In what way won't it fit? Is it the outside or the arbor hole? Spring looks raised between 9 & 12?
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Normally I-Rings for around 1mm Crystals are either **.2 or **.7 to match with **.5 & **.0 crystals. i.e. a 32.2mm I-Ring would be a 31.5mm Crystal. Based on your measurements I'd have thought the 31.5mm would be correct. Where did you get it and did you measure it? Edit Just looking at your photos. Was it a double dome 1.1mm originally as the I-Ring looks very deep for that size?
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