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Type: Posts; User: boslab

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  1. Replies
    18
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    922

    I think friction threaders sort of copied...

    I think friction threaders sort of copied friction presses, same friction cone set up, rare these days
    Mark
  2. Inventors by their nature cannot stick to one...

    Inventors by their nature cannot stick to one thing till it’s done, they try to lay one brick of a thousand houses and then get surprised when they haven’t built a house, rather than a thousand...
  3. Sorry misunderstood, oddly there was a program on...

    Sorry misunderstood, oddly there was a program on the tv about cars designed in wind tunnels, the best shape they reckoned was a banana, I’m afraid I don’t understand why, but it did explain why...
  4. Ariel atom? Mark

    Ariel atom?
    Mark
  5. Replies
    14
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    769

    Suppose an internal knurled is just a left hand...

    Suppose an internal knurled is just a left hand thread combined with a right hand, if you want diamond knurled anyway,
    Mark
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    413

    Often seen on old drawings in inches, fractional...

    Often seen on old drawings in inches, fractional sizes +/- .001 decimal dimensions +/- .0001 example, magnitudes of scale depending on number of decimal places followed this, I first saw it in the...
  7. Replies
    21
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    976

    Sacrificial anode? Mark

    Sacrificial anode?
    Mark
  8. Guess KO lee, looks right Mark

    Guess KO lee, looks right
    Mark
  9. Replies
    5
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    590

    Dura isn’t really made by any method that builds...

    Dura isn’t really made by any method that builds stress, ok there is a bit, it’s continuous cast, there is shrinkage but it’s fairly stable from my expirence, nice stuff really
    Mark
  10. Replies
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    815

    Unless you have a dead flat welding table ( most...

    Unless you have a dead flat welding table ( most don’t) just remember, three points make a plane, using this knowledge it is possible to fabricate larger components without worrying about twist etc....
  11. Replies
    23
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    1,063

    Is that the sliding tube die thing, anyhow not...

    Is that the sliding tube die thing, anyhow not difficult to make a sliding shear die set the right size, aka bench shear with a hole,
    Mark
  12. Replies
    37
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    2,562

    3 stage telescopic ram Mark

    3 stage telescopic ram
    Mark
  13. Replies
    37
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    2,562

    Don’t think it’s feasible myself, 32 or 34’ tool...

    Don’t think it’s feasible myself, 32 or 34’ tool not wandering, would think the cored bar option but wall thickness wouldn’t be sufficient for a 30’ rod without failure unless under tension not...
  14. Replies
    9
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    869

    I used potato on my Breathing apparatus in work,...

    I used potato on my Breathing apparatus in work, even in a nearly pure Carbon monoxide atmosphere (inside a gas holder from the blast furnace) where there was no way you could take it off to wipe, it...
  15. I’d avoid Chinese anything myself, if possible...

    I’d avoid Chinese anything myself, if possible
    Mark
  16. Thread: 2nd Boring Head

    by boslab
    Replies
    6
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    920

    Probably heat shrunk on, looks like it’s been...

    Probably heat shrunk on, looks like it’s been ground in situ by the spin grind marking
    Mark
  17. Replies
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    956

    Save yourself a bit of bother, make a template...

    Save yourself a bit of bother, make a template for the glass, appatures are seldom square, if your reall up a creek then a belt sander with silicon carbide works for me, slow I’m afraid but hay ho....
  18. Replies
    23
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    1,805

    I looked and wondered what the hell a hydraulic...

    I looked and wondered what the hell a hydraulic motor symbol was there for, ok minus the lines, it’s not a drg symbol I’ve used geometrically but who knows what iso symbols appear each day!
    DDs...
  19. Replies
    7
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    702

    Elu, kaltenbach over here, I have an lt250...

    Elu, kaltenbach over here, I have an lt250 kaltenbach, designed for Ali
    Mark
  20. Replies
    17
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    927

    Disks curl up anyway, rubber adhesive? Mark

    Disks curl up anyway, rubber adhesive?
    Mark
  21. Replies
    18
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    1,382

    Same 6 on my Harrison lathe, says 600 group on...

    Same 6 on my Harrison lathe, says 600 group on the tab, possible?
    Mark
  22. Thread: sewer covers

    by boslab
    Replies
    38
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    3,431

    All ductile iron, wouldn’t want them snapping I...

    All ductile iron, wouldn’t want them snapping I suppose, SG iron
    Mark
  23. It’s weird, I remember just about every formula...

    It’s weird, I remember just about every formula from math, chem, physics and can’t remember where I park the van in a big car park, what day it is or where my keys are, fascinating thing the human...
  24. When I did maths exams you had to remember the...

    When I did maths exams you had to remember the formulas, you did get 4 or 7 fig log tables, napirian
    Mark
  25. Replies
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    11,197

    I remember the raf taking on plumbers to wire...

    I remember the raf taking on plumbers to wire radar up, apparently they were better at handling the copper tubes they were using for power, I assume HF, fascinating I thought
    Mark
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