Depending on the scale of the part, you can start with parts that have a very slight interference, and hand sand them with emery paper to get the exact fit you want. I have found that when used carefully in controlled manner I can hand sand parts to a quite high precision. An OD can be sanded evenly by wrapping the entire OD with a band of 220 grit and carefully and evenly turning the part while keeping even tension across the width of the band. ID's can be done similarly by winding the band just smaller than the bore, inserting and counter rotating the part in such a way that the paper tries to unwind against the inner surface. You could print a custom sanding tool that is like in ID collet that holds the paper and also expands.. I have done alot precision square or flat parts with a full sheet of sand paper on top of a marble floor tile. Here you drag the part across the lapping surface with even and slow strokes, measuring often, moderating pressure to attain squareness...
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kmanstudios 1,120
I do not know what heat would be generated. That would the question. Also, what lathe chisel would you be using and is it super sharp?
I would run a small test just to see.
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JohnInOttawa 104
Heat would definitely be a factor. I'm not sure if there would be positive effects or net negative. But something would be affected.
I would use a metal lathe, so a carbide bit. I also thought that would give me finer control on cutting depth per pass.
Small test, good idea. and a good shield.
J
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