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    YouTube of my projects - in 4K / UHD - Feedback welcome

    I was taught the proper way to use a file on the lathe is: 1. Hold the handle in the left hand and the point in the right hand so as to not reach over the chuck. 2. Always use a single-cut file, preferably a long-angle lathe file with safe edges. That was a half century ago, but it still makes...
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    Mill Vise Selection Saga...(OMG)

    The Kurt is a great tool, but way too much for your mill. Check out the selection at the Little Machine Shop for smaller vises (3-4"). If you want a lock-down type like the Kurt, look at the Tormach. Craig
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    South Bend heavy 10 vs....

    The South Bend “Heavy” 10 lathe (officially the 10-L) is a substantial lathe built on traditional South Bend design – triple V-ways, plain bearing spindle, and flat belt drive. The bed is much wider than the 9/10K lathes. These lathes were produced right up to the end of South Bend production...
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    Two Cylinder Double Acting Steam Engine Build

    That tool is, indeed, a counterbore without a pilot. Normal usage would have a properly sized pilot in the end to keep the cutting tool aligned with the existing hole. Craig
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    My new Diamond in the rough

    That is a South Bend 9B, and I hope the full set of change gears were included in the purchase. The one attachment pictured is a milling attachment. The manual that came from the factory with the lathe "How to Run a South Bend Lathe" can be downloaded from the Yahoo group...
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    How was this model airplane fuel efficiency record achieved ? Alien technology ?

    If it makes a difference, the engine is described as a 4-stroke cycle. That would mean 1950 combustions per minute (3900 RPM). Swarfrat
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    Cirrus V8 rotary valve engine build 2x scale up

    The recognized formula for determining the outside diameter of a spur gear with full-depth teeth is to add 2 to the number of teeth and divide the sum by the diametral pitch. For your 24-tooth gear, that would be (24+2)/24=1.083" outside diameter. Applying the same formula to the 48-tooth gear...
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