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  1. Replies
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    2,787

    Drills ate so thin webbed it is not uncommon that...

    Drills ate so thin webbed it is not uncommon that they may not drill straight, Drilling a second size rarely will help.

    Reamers with a much thicker web and often may flutes make straight close...
  2. High chance of loading a wheel and so marring the...

    High chance of loading a wheel and so marring the finish grinding aluminum, but yes it would take a very good condition BP to surface heads.
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    I use masking tape for touch-off. it stays where...

    I use masking tape for touch-off. it stays where you put it and can be marked with a color marker it in poor light.
    Important to consider the mill tram and the length of your touch-off device...
  4. I would likely set a diamond at the end of a long...

    I would likely set a diamond at the end of a long bar and have a hole for a stripper bolt at center line 35" away at the opposite end if running with a type 1 straight wheel, with the diamond set...
  5. Running dressed in the OD of a type 1 wheel would...

    Running dressed in the OD of a type 1 wheel would give a true Radius related to the constant diameter and likely a better finish than the canted cup wheel. Most any grinder would do nicely..like a...
  6. Q: [Does not having any machine shop experience...

    Q: [Does not having any machine shop experience is a risk in buying and running a machine shop business?]

    Superbowl nailed buying a big machine shop/business because you are managing people.

    ...
  7. QT Mcgyver: In TO or Vancouver you are not...

    QT Mcgyver:
    In TO or Vancouver you are not going get a house on a wage. I was in Vancouver last week, family member is renting a house that just sold for $3.3 million - 3 bedroom on a 40' lot (but...
  8. Replies
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    Q: Any advice would be much appreciated thank...

    Q: Any advice would be much appreciated thank you!

    Add the material, the limits of accuracy, and the quality needed.

    It would be a tough job to turn.... mill, wire EDM, cast, injection mold,...
  9. I think starting out cold turkey with a...

    I think starting out cold turkey with a shop/machine you better have a year's reserve extra money to back 50% of your time going out knocking on doors for a year trying to find enough work to support...
  10. Wow, I'm surprised it is not gone, a little...

    Wow, I'm surprised it is not gone, a little overpower and more floor space, but it would be a great gunsmith lathe,

    Likely 10HP or so.
  11. I did build an internally opposed, roller-bearing...

    I did build an internally opposed, roller-bearing crankshaft, with a mechanical variable valve timing engine (on paper) but never built one.
  12. My friend Philip make a gasoline boiler the would...

    My friend Philip make a gasoline boiler the would heat it into a vapor with somehow not blowing up. He said that it got extraordinary mileage until the prime chemicals were burned off..and then...
  13. My buddy and his dad built a magnet motor back in...

    My buddy and his dad built a magnet motor back in the 70s for an inventor, It would pull really hard but going past each pole it tried to pull the other way. What was needed was an insulator for...
  14. On a 7/8" dia part If done on the inside curve of...

    On a 7/8" dia part If done on the inside curve of a 6" cup wheel, it would take some really good inspection gear to tell that it is not a perfect radius.
  15. Replies
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    It seems like a 1/4 is not .290 dia... Wait,...

    It seems like a 1/4 is not .290 dia...

    Wait, I will pull my Machinist Handbook and check on that.
    If the 1/4 is .290, then are the 1/2s .580?...and an inch 1.160?
  16. Replies
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    1,142

    ...with a .500 carbide inserted reamer. If the...

    ...with a .500 carbide inserted reamer.

    If the ends are not near perfect so all blades/inserts are not all hitting/cutting then there is little you can do to make good tool life.

    You can look...
  17. Replies
    25
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    2,010

    Here fid a site that gives some belt information:...

    Here fid a site that gives some belt information:

    Crowned Pulleys — Which Option is Right for You? | Sparks Belting

    We used to push a belt away from a shoulder step with a hammer handle. If it...
  18. Replies
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    5,136

    My suggestion of drilling the crack ends is for a...

    My suggestion of drilling the crack ends is for a crack in a slow-speed flywheel or faceplate, not for a shaft.
  19. Replies
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    5,136

    If you can determine the crack ends and drill...

    If you can determine the crack ends and drill holes where the crack will go it would stop growing longer..then drill a couple of holes at opposite to make balance.
  20. Replies
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    I think you can go advanced edit (for a time) and...

    I think you can go advanced edit (for a time) and edit the title.

    RE: "A-can-of-beans" is not a proper title for a lathe problem.
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    Agree.. and with the part being 6 feet long...

    Agree.. and with the part being 6 feet long perhaps a long (wood) 2 x 4 V block to set the out end on.

    Might need a long 2 x 4 V block carrier to take parts from one operation to the next.
  22. Replies
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    Might you use a female cone set in the spindle,...

    Might you use a female cone set in the spindle, cut away to avoid the vise jaws to rough locate the washer? likely to get .002 close.

    A male full-circle cone to locate off the ID.
  23. Replies
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    If you have an altered standard made consider...

    If you have an altered standard made consider making the step length long enough for a number of end/drill point resharpenings. Likely the 45 will outlast the drill point.

    Some times better to...
  24. Replies
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    And a bugged center., to true up a center drill...

    And a bugged center., to true up a center drill made center to a better circle, and some times to move a center a tenth or a few.
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    If you spin circle grind at 45 it will be 45*....

    If you spin circle grind at 45 it will be 45*. This is the common way to make this tool. Stephen's correct reply and the flute will be helical.

    If you TC grind it and roll the edge below center...
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