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  1. MachineTom

    Measure internal taper

    If SB shows a .6020 taper that is what you need to know. If making an adapter for a center, I suggest making it a bit smaller at the large end, that way it will be recessed, about -.010 dia. should be enough. Norman #4 1/2 morse taper is about 5.375 long [gage line} Big end 1.5", taper of...
  2. MachineTom

    Measure internal taper

    Awhile back I made some spindle adapters for Rockwell lathes and others. The common problem is folks confuse taper angle, with taper size-MT. Each Morse Taper # has an angle and a size. When used in the spindle bore, the Morse ANGLE my match a certain MT, but the size is not even close. Morse...
  3. MachineTom

    What to charge to thread a rod

    What sort of work holding will you use with the Rod. 3/8 NC is tough sometimes depending on material. Scored rod from slipping in the chuck/collet never shows well. A diehead is what I'd use for the threads, work in a collet, but if material is more than mild steel, you may need a dog driver as...
  4. MachineTom

    WTB 7 inch metal shaper, Atlas 7B, South bend or others

    My buddy has a SB 7 in good shape, no cabinet. In NJ, May be to far for you. If serious I will get photos.
  5. MachineTom

    Jaws for Buck chuck

    Sorry, my jaws are to small for your chuck.
  6. MachineTom

    Jaws for Buck chuck

  7. MachineTom

    Jaws for Buck chuck

    Please post the dimensions of the jaws 'm width, groove width, height. I have some unknow jaws. Tom
  8. MachineTom

    Alignment of cylinders and crank bearings

    Most engines (full scale) have the crankshaft C/L offset to the cylinder C/L. This to reduce the angle of the connecting rod on the power stroke. This will increase engine torque a bit. combined with offset in the piston wrist pin, makes the piston skirt bear a bit heavier to one side, thereby...
  9. MachineTom

    making piston ring for Corliss Steam Engine

    I made my Corliss rings as the drawing showed. First turn the outer diameter, place piece of brass, in one of the chuck jaws, half the thickness of the offset, so a .015 will yield 030 offset in the ID. Then measure for half the width. And make the cut, flip an do the other side of the Z. I...
  10. MachineTom

    Another Karl Benz 1886 Engine and Motor Wagon.

    I dont see mentioned if you have seen the car at the MB Museum in Stuttgart. I worked for Mercedes-Benz of NA. One of the fellows I worked with had been in charge of the apprentice program, and that was who built the model you see in the museum today. When Daimler celebrated its 100 anniversary...
  11. MachineTom

    Small bore rifle barrels.

    To expand on what Ken posted. A gun drillbit does not look like a drill, a long shaft with a straight flute or two to carry away the chips, a hollow bore to flow coolant to the cutting head, which is a carbide head with 1-2 cutting edges. I use a lathe for deep drilling,( Cannon barrels)so the...
  12. MachineTom

    Is there any place to get BA Bolts / Screws in US?

    There is a site in western. NY, British Fasteners. All those sizes, taps and dies as well. Nice folks to deal with Tom
  13. MachineTom

    How to attach a sight glass?

    Look in MSC or Mcmaster, dists. all kinds from $10 up.
  14. MachineTom

    Piano wire gripper design

    There are tools called bar puller, all sizes. Used in screw machines, cnc ECT.
  15. MachineTom

    LMS Sieg SC4 Popping My Ground Fault Interrupter

    A ground fault interrupter was designed for Bathroom and kitchen use. All about moisture creating a path from hot to YOU. If you have a motor with brushes, the carbon dust creates a leakage bridge to ground, or the metal dust in a non brush motor. Leave the GFI in the bathroom where it belongs...
  16. MachineTom

    The boring bar thanks are 3/16, 1/4, 5/16. And 3/8. The shank sizes is linked to the cutter...

    The boring bar thanks are 3/16, 1/4, 5/16. And 3/8. The shank sizes is linked to the cutter size. A 360 size cutter has a 3/8 shank. There a tool holders, that accept the shank, and are .500 diameter. That is what in do when using the BB in a boring head. Tom
  17. MachineTom

    Up in flames....no pun intended.

    As a kid I used to return deposit bottles to the deli for change. Then go to the hardware store and buy 000 steel wool pads. Then wrap a small candle in paper, then wrap the steel wool around. When dark bend a coat hanger around the steel wool and light it off. Then swing it around, the sparks...
  18. MachineTom

    FS: Solid Carbide Boring Bar Micro100

    I still have these available. These are great tools, especially for small parts. They are solid carbide, sharp, and unused.
  19. MachineTom

    pre drilling for holes

    When I was 14 years old our neighbor put in a swimming pool. Every day I watched the progress, digging the hole pouring cement etc. It being summer I had all day to watch the work progress. Now it came time to install the water slide it was mid August 95 degrees and humid. I watched the worker...
  20. MachineTom

    Questing about a flywheel casting issue.

    Odd that they left a piece to hold the 2 mold halfs apart. As the flywheel is split, would not seem to be needed.
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