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  1. Actually the rail car suspension springs use...

    Actually the rail car suspension springs use smaller diameter wire and the OD is much smaller. An elevator company I worked for used salvaged truck springs as buffer springs.
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    Go real old school: rough it out with cold...

    Go real old school: rough it out with cold chisels and finish by filing. Textbooks from the late 19th and early 20th century are available on the internet as PDF or Epub files. They usually cover...
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    I have been tempted to try small diamond core...

    I have been tempted to try small diamond core bits to cut out the center of the tap. Here is a product I plan to experiment with.
    10pcs 3mm diamond coated hole saw drill bits set core marble glass...
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    They are space blocks. Their use is similar to...

    They are space blocks. Their use is similar to precision gauge blocks but their accuracy is less, usually about +-.0001". Also called setup blocks.
  5. I would go with space balls or dabs of silicone. ...

    I would go with space balls or dabs of silicone. Anything else is more work and bother.
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    Get the ANSI standards for gantry cranes. Do the...

    Get the ANSI standards for gantry cranes. Do the calculations to prove your design meets the ANSI criteria.
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    That info is readily available on the internet. ...

    That info is readily available on the internet. All you need to do is search for it. You should have done that before posting here.
  8. I recently ordered screws for a caliper. The...

    I recently ordered screws for a caliper. The $500 minimum apparently does not apply to repair parts.
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    Carpenter's web site said the material is...

    Carpenter's web site said the material is available in strip form only. Check on the available thickness to see if the turned part is even possible.
  10. Before you re-assemble it drill and tap some...

    Before you re-assemble it drill and tap some holes in the adapter plate for some jack screws.
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    For really small holes forget using inserts.

    For really small holes forget using inserts.
  12. Do you have a DRO with a bolt circle function? ...

    Do you have a DRO with a bolt circle function? Use it to plunge many times around the arc. Spacing of the plunges will depend on the diameter of your tool and the allowable scallop.
  13. YouTube...

    YouTube
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    My guess it is a custom pump made for Clark. I...

    My guess it is a custom pump made for Clark. I would start looking for vendors that handle and/or recondition used forklift parts.
  15. The cross section of the gripper is so great...

    The cross section of the gripper is so great compared to the wire that material strength will not be an issue. Abrasive wear from the wire might warrant a harder material.
    Don't bother trying to...
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    I missed the threaded surface. That means I...

    I missed the threaded surface. That means I would have to design one of the fixtures so I could mount it to a lathe faceplate for threading. Design of the fixturing will depend a lot on the...
  17. My understanding is that the rollers are very...

    My understanding is that the rollers are very slightly crowned to prevent fatigue cracking at the ends. A truly cylindrical roller is undesirable.
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    An then you see machinists tightening all 3 in...

    An then you see machinists tightening all 3 in sequence. The reason the center shifts when you tighten the other pinions is that it shifts the scroll with respect to the chuck body. The scroll...
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    I already have one. Same price as yours, not...

    I already have one. Same price as yours, not nearly as nice and no micrometer feeds.
    I have some manuals if anyone needs a copy.
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    You beat me to it. It could be done in 3...

    You beat me to it. It could be done in 3 fixtures. Designing the fixtures is the hard part.
  21. I don't have the cutter but have everything else...

    I don't have the cutter but have everything else needed to rotary broach it. With the cutter I could rotary broach it faster than you can set up the slotter.
  22. I don't know for certain but I expect the mass...

    I don't know for certain but I expect the mass quench effect of the surrounding metal to be more severe than a water quench. Better include the cost of annealing and reheat treatment in your...
  23. I think you are right. I suspect it was...

    I think you are right. I suspect it was activated by a foot treadle.
    The square bar out the bottom is probably what actuates it. Coming from BC therenis a logical connection with the lumber...
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    With an imperial leadscrew you can't disengage...

    With an imperial leadscrew you can't disengage the half nuts for metric, module or DP threads.
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    Switch to an insert with an internal hex...

    Switch to an insert with an internal hex wrenching surface. McMaster has them for hard wood or soft wood.
    McMaster-Carr

    McMaster also sells installation tools for the type od insert you have...
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