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dial indicator help
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<blockquote data-quote="Trickymissfit" data-source="post: 496827" data-attributes="member: 25383"><p>Joseph Lamb is out of Michigan. They are well known for boring complexes and transfer machines. They build some of the finest boring heads on the planet, and send most of their rebuild work to a place in Muncie Indiana. I have been in that shop more than once, and it's impressive. I had them rebuild Devlieg J model spindles for me. These guys had the original Catapillar drawings for the spindle design, and their accuracey was simply amazing! I saw them grinding paper rollers to .0005" in 12 feet (these things are a bear to do).</p><p> </p><p>The shop with the grinder that would do .0003" in 23 feet was called Viking Engineering in Hammond Indiana. The grinder was German, and looked like a large plainer with several heads on it. I had them build brand new ways for Devliegs that were 12 feet long, and had to be near perfect for a good Moglice job (remember error doubles). I was looking for a way to get .00035" out of the cutting area, and the best place to start was with the ways. The factory drawings showed .0005" in 12 feet with a micro of about 9. I was looking for .00025" parallelism and .00015" flatness with a 5 to 6 micro. Folks said I was nuts! I had been sending ways up there to be reground for three years, but had never been in the place. Boss and I jumped in a Tahoe and drove up there one morning. Was treated well (they were making some serious cash off my business alone). Laid my CAD drawings out in front of them, and they guy just asked how soon did I need four of them? I gave him six weeks and had them in a crate in three weeks! I checked them when they came in, and he beat every number I had on the drawings. Next rebuild, Norm and I used them. Actually brought everything withing .0003" in about four feet. This gave the operator a greater window to work out of, and the the machines had almost double the usable life span (we were rebuilding x, w, z, and y axis every 20 months, and got almost 3 years of use out of them). The ways were nothing but 12 foot long parallel bars that were also matching pairs. The pads they bolted to were hand scraped flat so the new ways pulled down flat. We only had to do some very minor tweeking of the leveling jacks to reach .000015" in 12 feet with a Federal electronic level. They actually took about three days labor out of the rebuild, so they easilly paid for themselves when we installed them. Devlieg found out that Norm and I were getting positioning at about half of what they were getting, and came down to see what we were doing. </p><p>gary</p></blockquote><p></p>
[QUOTE="Trickymissfit, post: 496827, member: 25383"] Joseph Lamb is out of Michigan. They are well known for boring complexes and transfer machines. They build some of the finest boring heads on the planet, and send most of their rebuild work to a place in Muncie Indiana. I have been in that shop more than once, and it's impressive. I had them rebuild Devlieg J model spindles for me. These guys had the original Catapillar drawings for the spindle design, and their accuracey was simply amazing! I saw them grinding paper rollers to .0005" in 12 feet (these things are a bear to do). The shop with the grinder that would do .0003" in 23 feet was called Viking Engineering in Hammond Indiana. The grinder was German, and looked like a large plainer with several heads on it. I had them build brand new ways for Devliegs that were 12 feet long, and had to be near perfect for a good Moglice job (remember error doubles). I was looking for a way to get .00035" out of the cutting area, and the best place to start was with the ways. The factory drawings showed .0005" in 12 feet with a micro of about 9. I was looking for .00025" parallelism and .00015" flatness with a 5 to 6 micro. Folks said I was nuts! I had been sending ways up there to be reground for three years, but had never been in the place. Boss and I jumped in a Tahoe and drove up there one morning. Was treated well (they were making some serious cash off my business alone). Laid my CAD drawings out in front of them, and they guy just asked how soon did I need four of them? I gave him six weeks and had them in a crate in three weeks! I checked them when they came in, and he beat every number I had on the drawings. Next rebuild, Norm and I used them. Actually brought everything withing .0003" in about four feet. This gave the operator a greater window to work out of, and the the machines had almost double the usable life span (we were rebuilding x, w, z, and y axis every 20 months, and got almost 3 years of use out of them). The ways were nothing but 12 foot long parallel bars that were also matching pairs. The pads they bolted to were hand scraped flat so the new ways pulled down flat. We only had to do some very minor tweeking of the leveling jacks to reach .000015" in 12 feet with a Federal electronic level. They actually took about three days labor out of the rebuild, so they easilly paid for themselves when we installed them. Devlieg found out that Norm and I were getting positioning at about half of what they were getting, and came down to see what we were doing. gary [/QUOTE]
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