Buffing Knobs and other plastic parts

[Jeffry Blackmon]

Jerry Straight wrote:

> Oh, I forgot to say that I once heard of someone using one of those battery
> operated shoe polishers but never tried it myself.  Anyone else tried this?
> Jerry

No, but the earlier comments about wheel speed are very important.  Machinists
calculate tool speed (inches per minute) because they need to select an
efficient speed without wasting time or burning up the material being cut or
wearing out the tooling too quickly.   Jeff

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