Measuring a I/d

  1. Brad93

    Brad93 M J B Engineering

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    Yeah it’s pure greed. Profit is good, it keeps a company growing naturally.

    slip gauges are another thing on my list but I’ll definitely be buying them used.
     
  2. BelgiqueB Member

    Messages:
    156
    Location:
    Belgium
    What are slip gauges? I googled them but it was gauge blocks that came up, how would you measure a bore with them?
     
  3. Seadog

    Seadog Forum Supporter

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    Same thing.
     
  4. BelgiqueB Member

    Messages:
    156
    Location:
    Belgium
    How do you measure a round hole with a square block?
     
  5. Seadog

    Seadog Forum Supporter

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    What you need are gauge pins.
     
  6. mtt.tr

    mtt.tr Member

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    Essex England
    This is a cheap one internally, really poor finish.

    IMG_20200515_122129_9.jpg

    If anyone finds themselves deburring one remember that its most important that the slot remains parallel to base any taper will allow the gauge to move towards the narrower part.


    I really believe there is a place for someone to make these well and make a profit
     
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  7. Brad93

    Brad93 M J B Engineering

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    10,394
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    I’ll take one of mine apart now
     
  8. mtt.tr

    mtt.tr Member

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    4,041
    Essex England
    What out they are a **** to reassemble. The inner spring likes to spring
     
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  9. Brad93

    Brad93 M J B Engineering

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    10,394
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    Well, mine don’t have any burrs like the video, but the sides of the slots are sharp. The milling has been nicely done.

    I think they’ll lap in with time. Carts only not going to go at them with any sort of stone I own. You’d need something incredibly small and fine.
     
  10. MBB Forum Supporter

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    1,127
    Location:
    northumberland
    I have a set of micrometer bore gauges but they don't go small enough for under 1" they come up on ebay every so often. They're better than the spring type, you don't have to transfer the size to another measuring device. If you do a lot of boring they are good investment if not the spring type are quite adequate. I use spring leg callipers and and a mic more than any other method.
     
  11. mtt.tr

    mtt.tr Member

    Messages:
    4,041
    Essex England

    With bore mics and patience its rather easy to extend your capacity aswell, i have a handful of lapped extensions.
     
  12. Hood

    Hood If it walks like a duck....

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    Can't remember the last time I used the bore micrometer, anything over the 100mm max of the 3 point bore mics I have and I just use the telescopic one.
    If it were metric then I would likely use it more but it is Imperial and I can't be ersed converting :D
     
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  13. MBB Forum Supporter

    Messages:
    1,127
    Location:
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    I'm the opposite to you I convert everything to imperial.
     
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  14. mtt.tr

    mtt.tr Member

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    4,041
    Essex England

    You monster
     
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  15. MBB Forum Supporter

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    Location:
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    I think its an age thing.
     
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  16. mtt.tr

    mtt.tr Member

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    4,041
    Essex England
    @Brad93 this optical punch is tesa its brilliant and perfect in the hand.

    Thought id tempt you.


    IMG_20200515_181756_2.jpg IMG_20200515_181633_7.jpg
     
  17. Welderpaul

    Welderpaul Moderator Staff Member

    Messages:
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    Location:
    Yorkshire
    Or want an absolute fortune for a water cooled tig torch with their own specific consumables.....So buy a Parweld one which fits the machine, just a different colour (but with a swivel head), and also takes standard WP consumables.:rolleyes:
    Dunno how much truth is in it but a rep says Parweld make the Esab torches. (Same as Binzel make the Lorch torches?)

    You're all the same you welder reps:whistle:
     
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  18. Brad93

    Brad93 M J B Engineering

    Messages:
    10,394
    Location:
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  19. Brad93

    Brad93 M J B Engineering

    Messages:
    10,394
    Location:
    Essex
    Yes ESAB TIG torches come from the same factory as Parweld.

    To be honest I don’t think you can go wrong with the Lorch torches. They’re Binzel and nicely made.
     
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  20. Welderpaul

    Welderpaul Moderator Staff Member

    Messages:
    13,601
    Location:
    Yorkshire
    Yes, they seem to last the distance with us. They only way we kill them is dropping something heavy on the lines or getting a coolant leak back to the torch which fries the PCB in the torch body. Wouldn't be without the Powermasters now.

    Anyway, OT.
     
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