Welcome to the world of Atlas Lathes, Joe.
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Some questions for you:
What model lathe did you get? ?They made a 6" swing, a 10" swing and a 12" swing, I think, and recommendations will vary.
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The simplest is the traditional ROCKER STYLE (some call 'em Lantern Style) tool post. ?Next step up would be a block tool holder, where you might be able to mount two or more tools and rotate the block to bring a tool into use. ?Finally (and there are variations and opinions here too) would be a Quick Change Tool Post. ?Knowing the size of your lathe will dictate what choices make more or less sense.
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Did your lathe come with change gears or a Quick Change Gear Box?
We'd love to see more pictures of your lathe
Charlie