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Rifles, Reloading, Optics, Equipment
Gunsmithing
Lathe and Mill Recomendations??
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<blockquote data-quote="Trickymissfit" data-source="post: 1159313" data-attributes="member: 25383"><p>I'm a machine builder (err was one), have an ME degree and could have my metallurgical engineering degree in 18 months. I've built everything from machine centers to gauge grinders, and a lot of junk in between. I look at all pieces of machinery as nothing but, bearings, shafts, and gears. Yet super precision grinders and somewhat of a different animal. Most of us couldn't afford a grinder with .000050" capability, let alone what it takes to make it work. Owning the machine is the easy part! Samething with a lathe of quality. A small vertical mill is easy, but also a much shorter life span.</p><p></p><p>So you all go out an buy something new or used. If you got a deal on a used piece of equipment, you probably got a deal on somebodies headache. Ninety percent of the population fails to understand the why's and what's of a spindle line design in anything. A lot more to it than replacing some ball bearings (or roller bearings). A lathe carriage can easily be known as a mechanical nightmare, and a half nut change out will often ruin the day. You can always figure that at the least the compound needs to be scraped. Three hundred hours probably means the cross slide needs some work as well (a few machines have hour meters on them, and this is a good indicator of things to come). </p><p></p><p>So you get yourself a quality lathe and mill in one form or another. Where you gonna put it? Eight inches of good concrete is about the minimum. Six inches won't really work even if it's the densest variety. I prefer ten inches or more. Concrete flexes all over the place. A Bridgeport can probably work on six inches of a better grade on concrete, but eight is still better. Grinders are easy. </p><p></p><p>Then after you get a good floor and some machines you get to install them. </p><p>gary</p></blockquote><p></p>
[QUOTE="Trickymissfit, post: 1159313, member: 25383"] I'm a machine builder (err was one), have an ME degree and could have my metallurgical engineering degree in 18 months. I've built everything from machine centers to gauge grinders, and a lot of junk in between. I look at all pieces of machinery as nothing but, bearings, shafts, and gears. Yet super precision grinders and somewhat of a different animal. Most of us couldn't afford a grinder with .000050" capability, let alone what it takes to make it work. Owning the machine is the easy part! Samething with a lathe of quality. A small vertical mill is easy, but also a much shorter life span. So you all go out an buy something new or used. If you got a deal on a used piece of equipment, you probably got a deal on somebodies headache. Ninety percent of the population fails to understand the why's and what's of a spindle line design in anything. A lot more to it than replacing some ball bearings (or roller bearings). A lathe carriage can easily be known as a mechanical nightmare, and a half nut change out will often ruin the day. You can always figure that at the least the compound needs to be scraped. Three hundred hours probably means the cross slide needs some work as well (a few machines have hour meters on them, and this is a good indicator of things to come). So you get yourself a quality lathe and mill in one form or another. Where you gonna put it? Eight inches of good concrete is about the minimum. Six inches won't really work even if it's the densest variety. I prefer ten inches or more. Concrete flexes all over the place. A Bridgeport can probably work on six inches of a better grade on concrete, but eight is still better. Grinders are easy. Then after you get a good floor and some machines you get to install them. gary [/QUOTE]
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Lathe and Mill Recomendations??
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