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I knew there had to be an M&M in there somewhere...Kevin
I don't have a store bought reamer in .047" (1.2mm), which is the size needed for the crankshaft bore, so I made upa little shop reamer using hardened pivot wire. These are usually called "D" reamers, or D-bits. Normally,for a larger size it would be made up from drill rod, the end machined to make the cutting edge, then hardened.For this one I made it in a kind of half lozenge shape using an india stone to grind away the basic shape.
Dean,Is this "pivot wire" the same as the "piano wire" that I'd find in a local hobby shop?Alan
Do you use any kind of magnifying devices when you are doing this type of stuff?
What'd you use for air line? Wire insulation?Kevin
Someone should build one, Carl!