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Type: Posts; User: MattiJ

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  1. Replies
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    ANSI or inch based system is I.C. ISO /metric...

    ANSI or inch based system is I.C.
    ISO /metric is gludge to approximate cutting edge lenght but it’s not perfect match because the underlying dimensions are in inches and corner radius fools you in...
  2. If you don’t overdo the compressing it should be...

    If you don’t overdo the compressing it should be ok.
    You can safely heat 4140 HT to about 1100F without affecting the tensile strenght and tempering. Pressing the heated ring to smaller opening...
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    1,030

    Good step drill last certainly longer than 5/8...

    Good step drill last certainly longer than 5/8 total thickness even in stainless as long as you use sensible sfm. But 1.5” final diameter would need suitable drill and strong guy.
    Thickest material...
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    Possible? Yes. Sensible: not unless you are on...

    Possible? Yes. Sensible: not unless you are on Sentinel islands and your life depends on it.
  5. I was thinking more of diamond wheel in bench...

    I was thinking more of diamond wheel in bench grinder where it is about 10 seconds setup and the time is spent mostly repeatedly measuring and sneaking to correct size.
    I have collection of mgmn200...
  6. Replies
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    2,740

    tpac tools looked like good hint. Any experience...

    tpac tools looked like good hint. Any experience with their ER collets?

    In general if you go for cheap chinese tooling at least buy from seller that is specialized in tooling. In my experience...
  7. Replies
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    Well done! And big thanks to you for giving us an...

    Well done! And big thanks to you for giving us an update. These threads remain too often without update if solution was found.
  8. Replies
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    2,216

    Not really a Bridgeport job, more like universal...

    Not really a Bridgeport job, more like universal mill with helical milling setup(universal dividing head).

    Muchos fun to set up for one-offsie:
    ...
  9. Replies
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    Since this is a clearly academic wanking exercise...

    Since this is a clearly academic wanking exercise you can "easily" thread the s-14 by coupling axis feed and rotary table together with some gears and universal joints.
  10. typical socket would use lot larger corner radius...

    typical socket would use lot larger corner radius and its placed differently:
    https://cdn.shopify.com/s/files/1/0133/1606/3332/products/[email protected]
  11. How many seconds to grind your own from larger...

    How many seconds to grind your own from larger insert.. yeah you needed more than one but less than full box :cool:
  12. Sandvik Corocut XS, P. Horn 274 series.. what else

    Sandvik Corocut XS, P. Horn 274 series.. what else
  13. Replies
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    801

    Slow speed, small DOC, gummy material inserts...

    Slow speed, small DOC, gummy material inserts have been covered in dozens of topics previously but here is some starting points:

    -Any old fart here is going to recommend HSS
    -Look for CCGT...
  14. 'Muricans are not familiar with AF stamped on the...

    'Muricans are not familiar with AF stamped on the wrenches since they don't use Whitworth wrench size system :D

    (A Whitworth wrench is sized according to the diameter of the shank of the bolt, not...
  15. I'm guessing you haven't seen the "building code"...

    I'm guessing you haven't seen the "building code" in third world countries. Insurance? Engineer? Certified Welder? Structural steel? maybe on their largest skyscrapers if that.
    OP is residing(doing...
  16. 54 HRC minimum and 60 max on jominy test bar. To...

    54 HRC minimum and 60 max on jominy test bar. To about half inch depth.
  17. This. 300lbs steel chunk to cool the surface and...

    This. 300lbs steel chunk to cool the surface and high energy output cutting torch to heat it fast. 60 HRC on a bad day.
  18. Replies
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    I was thinking along the same lines. Thermal...

    I was thinking along the same lines. Thermal conductivity and mass might have some small effect if you push things enough far.

    Finishing inserts are harder to find and generally more expensive in...
  19. 120 degree rhombic and you don't even need to...

    120 degree rhombic and you don't even need to rotate your workpiece :icon_bs:
  20. Replies
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    Just double-check it fits in the starting bore...

    Just double-check it fits in the starting bore :cool:
    Korloy and Mitsubishi bars with shim insert won't fit.

    I have got caught with the laydown insert boring bar minimum bore size more than...
  21. Replies
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    488

    Probably what the OP meant after all. With...

    Probably what the OP meant after all.

    With laydown inserts on internal threading tool the same angle should work for all the single-ended internal threads as the tool diameter or insert size is...
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    Internal threading tools often come without the...

    Internal threading tools often come without the anvil/plate as there is limited space available.
    Insert pocket is set to angle that works with standard pitches.
    Mitsubishi has also internal...
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    2 PC LADIES PINK SCREWDRIVER SET Phillips Slotted...

    2 PC LADIES PINK SCREWDRIVER SET Phillips Slotted Flat Head Women Girl Female - - Amazon.com

    Ok, I’m outta here :D
  24. awander got it right, no need to further multiply...

    awander got it right, no need to further multiply with .574

    IF you set the tool/top slide to 30 degrees and IF you use the tool slide to advance the cutter then you need the trigonometry.
  25. Replies
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    Dang, my bad. 🤣

    Dang, my bad. 🤣
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