Most visitors online was 1990 , on 7 Feb 2022
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Ddave-b replied to the thread George Daniel's Watchmaking understanding!.Thanks. I had completely forgotten wobble sticks. ( have a dedicated mandrel lathe which seems very accurate .I must do some comparative...
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Ddave-b replied to the thread George Daniel's Watchmaking understanding!.If the pump centre cannot be relied on, how is perfect concentricity achieved?
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DThis is my version of Joe's spring winder. Works great for me
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Ddave-b replied to the thread Levin thread cutting.Mike, on a geared set-up, all you do for a left hand thread is to add an idler gear. Admittably, mine is on a Unimat 3. I probably...
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Ddave-b replied to the thread Levin thread cutting.double post
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Ddave-b replied to the thread Levin thread cutting.Hi Mike, I am a bit confused (not unusual),but you say 25 - 100 rpm gave acceptable surface results under power, but surely that rpm is...
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Ddave-b replied to the thread Levin thread cutting.Thread chasing ?
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