Tramming a Rong-Fu Drill/Mill - Home Metal Shop Club

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Setup to drill set screw hole• Setup work piece on top ofadjustable parallel.• Object: drill set screw holesexactly vertical.• Using optical center toposition chuck over scribedcenter.• Discovered $200 optical centerwas off center in both X and Y.• Tested optical center and haveexample showing inaccuracy.• Needed new method to centerdrill bit.
Setup to drill set screw hole• Put HSS point fromscribe into chuck.• Centered it over scribedcenter using smallmagnifying glass.• A tedious andsomewhat inaccurateprocedure.
Page 1 and 2: TRAMMING A RONG FUMILL/DRILLbyNorm
Page 3: The Rong Fu Mill/Drill• 1.5 horse
Page 7 and 8: • Placing carefullyselected shims
Page 9 and 10: Tramming with a dial indicator• L
Page 11 and 12: • Made a ¾ mild steelmandrel wit
Page 13 and 14: An alternative to shimming• Cut f
Page 15 and 16: Realities of jam nuts• Preliminar
Page 17 and 18: Future Things To Try• Spindle squ
Page 19 and 20: Adjustable Parallel Drawing
Page 21 and 22: Setup with adjustable parallel• I
Page 23 and 24: Setup with adjustable parallel• I
Page 25 and 26: Why two vises?• I prefer to use a
Page 27 and 28: Making an adjustable parallel• Us
Page 29 and 30: Milling a parallel to correct heigh
Page 31 and 32: Milling a parallel to correct heigh
Page 33 and 34: • Setup workpiece.• Drill two h
Page 35: • Setup to mill notch with ¼inch
Page 39 and 40: Making a lead dimple• Use center
Page 41 and 42: Drilling final hole before tapping
Page 43 and 44: • Attempt to tap 8-32 threadsresu
Page 45 and 46: Hard learned lessons about drilling
Page 47 and 48: • I tend to forget whichway the w
Page 49 and 50: Tapping Operations in Review
Page 51 and 52: Setup For Case Hardening• Neycraf
Page 53 and 54: • Polishing the adjustableparalle
Page 55 and 56: Result: A Box of Adjustable Paralle
Page 57 and 58: Where The Tools Came FromSource•

Tramming a Rong-Fu Drill/Mill - Home Metal Shop Club

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