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Rifles, Reloading, Optics, Equipment
Gunsmithing
Looking at some lathes and mills on auction
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<blockquote data-quote="SidecarFlip" data-source="post: 725248" data-attributes="member: 39764"><p>Proper nonenclature is 'swarf' not chips btw. Chips are what the English eat with their fish.</p><p> </p><p>Have 3 phase at home? Lathes especially don't like static phase conversion because the start loads are high and repowering to 220/1 can be expensive and not practible if the machine is frequency drive.</p><p> </p><p>Your prime concern will be bed length and spindle through hole internal diameter. The bigger the through hole the better and the longer the bed is (to a point) the better. You won't need anything longer than a 45" useable bed length *between centers". Make sure the machine is D1 camlock spindle, preferrably D1-4 or better and even better would b a diametrical thread cutting gearbox. All the manufactirers you listed are tits up so gtting parts can be a hassle...except B'Port that is now Hardridge.Make sure the machines are tooled and have taper attachments is possible. The nore hard tooling the better, Hard tooling can b 2-3 tims the cost of a machine and make sure the tool posts have Aloris or Aloris style wedge lock toolposts with corresponding toolholders.</p><p> </p><p>Mills are mills. All vertical mills, unless CNC machining centers with tool changers are just fancy drill presses with power downfeed. get a B'Port, parts are available anywhere. Cincinatti is a good machine but parts can be a PITA. If any of the mills are BT40 or CAT40 spindles, get that. Unlike R8, Cat 40 and BT 40 are more versitale, locate more accurately when doing tool changes and offer through spindle coolant flow.</p><p> </p><p>I've bought some great machine tools at school sales and some really bad ones too.</p></blockquote><p></p>
[QUOTE="SidecarFlip, post: 725248, member: 39764"] Proper nonenclature is 'swarf' not chips btw. Chips are what the English eat with their fish. Have 3 phase at home? Lathes especially don't like static phase conversion because the start loads are high and repowering to 220/1 can be expensive and not practible if the machine is frequency drive. Your prime concern will be bed length and spindle through hole internal diameter. The bigger the through hole the better and the longer the bed is (to a point) the better. You won't need anything longer than a 45" useable bed length *between centers". Make sure the machine is D1 camlock spindle, preferrably D1-4 or better and even better would b a diametrical thread cutting gearbox. All the manufactirers you listed are tits up so gtting parts can be a hassle...except B'Port that is now Hardridge.Make sure the machines are tooled and have taper attachments is possible. The nore hard tooling the better, Hard tooling can b 2-3 tims the cost of a machine and make sure the tool posts have Aloris or Aloris style wedge lock toolposts with corresponding toolholders. Mills are mills. All vertical mills, unless CNC machining centers with tool changers are just fancy drill presses with power downfeed. get a B'Port, parts are available anywhere. Cincinatti is a good machine but parts can be a PITA. If any of the mills are BT40 or CAT40 spindles, get that. Unlike R8, Cat 40 and BT 40 are more versitale, locate more accurately when doing tool changes and offer through spindle coolant flow. I've bought some great machine tools at school sales and some really bad ones too. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Gunsmithing
Looking at some lathes and mills on auction
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