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Rifles, Reloading, Optics, Equipment
Reloading
measuring cases to .0001
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<blockquote data-quote="Trickymissfit" data-source="post: 635307" data-attributes="member: 25383"><p>The long travel dial indicators are really not all that accurate, but if you gotta use one then use one with a digital read out (gets rid of the backlash from the gear & rack). The nest issue with those long travel indicators is that they have to have the setup fairly well centered because they don't handle a side load well. If the indicator has a bar or something like that attached to the stem it will not work as well. I built one once that used the digital scale similar to the ones used on a Bridgeport Z axis. The ram was attached to the scale, and I made some little adapters that went in the ram to seat on the datum line. It was good for .0005" consistently. I had a case that I called the master for each caliber I measured, and I used it to set the zero point on the scale. Wasn't perfect, but better than using calipers. The whole thing was very simple, and the only hard thing was mounting te scale and reader head.</p><p> </p><p>gary</p></blockquote><p></p>
[QUOTE="Trickymissfit, post: 635307, member: 25383"] The long travel dial indicators are really not all that accurate, but if you gotta use one then use one with a digital read out (gets rid of the backlash from the gear & rack). The nest issue with those long travel indicators is that they have to have the setup fairly well centered because they don't handle a side load well. If the indicator has a bar or something like that attached to the stem it will not work as well. I built one once that used the digital scale similar to the ones used on a Bridgeport Z axis. The ram was attached to the scale, and I made some little adapters that went in the ram to seat on the datum line. It was good for .0005" consistently. I had a case that I called the master for each caliber I measured, and I used it to set the zero point on the scale. Wasn't perfect, but better than using calipers. The whole thing was very simple, and the only hard thing was mounting te scale and reader head. gary [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
measuring cases to .0001
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