Search Results - Practical Machinist - Largest Manufacturing Technology Forum on the Web
Close
Login to Your Account

Search:

Type: Posts; User: Mechanola

Page 1 of 43 1 2 3 4

Search: Search took 0.02 seconds.

  1. Replies
    35
    Views
    2,667

    Sloppy language, sloppy thinking, what I was...

    Sloppy language, sloppy thinking, what I was aiming at. Isn’t already the topic title out of phase? 1,000 kV, I thought, what?! A million Volt, nowhere in the world is that a transmission tension....
  2. Replies
    35
    Views
    2,667

    The unit is not Amps but Ampère after the French...

    The unit is not Amps but Ampère after the French mathematician, physicist, chemist, and philosopher André-Marie Ampère, 1775–1836. Plural is still Ampère, no s.

    Volt goes back to the Italian count...
  3. Replies
    45
    Views
    6,521

    Exactly what I was experimenting with for myself...

    Exactly what I was experimenting with for myself during apprenticeship until master saw what I was doing to forbid it to me. Slow is always correct. Under time pressure speed up and decrease feed...
  4. Replies
    12
    Views
    1,360

    Would have been decent, if you wrote the correct...

    Would have been decent, if you wrote the correct title. The video’s title is

    Robertson, Phillips, and the History of the Screwdriver.
  5. It would be nice to have a live tool on A or B...

    It would be nice to have a live tool on A or B axis. You could mill-turn the face groove, a matter of two minutes. Else buy a sturdy tool (holder), plunge in at about 100 m/min and gentle feed. You...
  6. Replies
    51
    Views
    4,319

    You can bring forces down by giving the punch a...

    You can bring forces down by giving the punch a slant. Make the tool enter the stock not on the entire line of cut but increasingly along it. Would presumably need to pass the cut pieces between...
  7. Aluminium foil is your friend. No overlap,...

    Aluminium foil is your friend. No overlap, butting ends
  8. Replies
    38
    Views
    3,193

    No wonder, brass contains zinc which is...

    No wonder, brass contains zinc which is bactericidal. Reason why door handles and water taps are made from brass. The greenish tinge is copper sulphate that forms in the moment of machining brass...
  9. Replies
    5
    Views
    671

    10 degrees is too much for that design. Change to...

    10 degrees is too much for that design. Change to a wire coil spring.
  10. Replies
    47
    Views
    3,222

    Just keep doing work for the railroad and the...

    Just keep doing work for the railroad and the circle remains closed.
  11. Replies
    10
    Views
    1,243

    Yeah, much coolant. Everything else is idiotisch.

    Yeah, much coolant. Everything else is idiotisch.
  12. Replies
    56
    Views
    3,297

    You can have more things in the game like...

    You can have more things in the game like misaligned turret, tweaked ways, whole machine twisted. I hate to say it but those errors are not rare.
  13. Of course can that be made. Spun it will perhaps...

    Of course can that be made. Spun it will perhaps not be as straight as you imagined or the tip not sharp enough. Drawn it will require a large press and the forms. Cast it will demand a good sand...
  14. Replies
    44
    Views
    4,168

    Endorse that. It’s the Practical Machinist Forum...

    Endorse that. It’s the Practical Machinist Forum and your point is precisely what we can do. Everything else is castors’ or managers’ business. My experience with stress relief is based on the...
  15. Replies
    29
    Views
    2,391

    Obsession. Yeah. Drill chucks. Mine are movie...

    Obsession. Yeah. Drill chucks. Mine are movie cameras. I know where tight tolerances or rather small deviations are important, which parts move fast and which slow. Differentiation helps.

    Know...
  16. Replies
    29
    Views
    2,391

    Please don’t take it personally, of course you...

    Please don’t take it personally, of course you will because I’m pointing out something—

    it’s not tolerances that add but deviations, errors. A tolerance cannot be measured, it’s given by somebody...
  17. Replies
    30
    Views
    2,763

    Alright, two screws in the tap is a possibility...

    Alright, two screws in the tap is a possibility although still rather long. I think the designer simply thought, a tap on this side and one on the other—let’s simply let it go through . . .
  18. Replies
    30
    Views
    2,763

    Fine pitch is also standardized. Do you mean...

    Fine pitch is also standardized. Do you mean regular?

    A two-inch long M 5 thread is sign of stupidity. The mating surfaces are so big that the threads will need overly much attention in order to...
  19. Replies
    39
    Views
    3,846

    If you have a live A and/or B axis, do spinning...

    If you have a live A and/or B axis, do spinning tool roughing. R inserts, coolant, lighter cuts, but more feed. Last liberty is velocity of cut. Once found the right speed, program G96 SXXX just...
  20. Replies
    10
    Views
    1,844

    Hahaha, that makes me laugh, six sigma . . .

    Hahaha, that makes me laugh, six sigma . . .
  21. Replies
    34
    Views
    2,844

    I have learnt to first drill, then bore up, then...

    I have learnt to first drill, then bore up, then ream. Bore-up tool has three flutes, it still flexes to some extent in coil form.

    If drill makes bad walls, an intermediate turning operation can...
  22. The first cut is the most important. Clamp the...

    The first cut is the most important. Clamp the work as deeply in the vice as possible, it mustn’t stick out high on parallels. Check whether first machined surface is parallel to table. If not,...
  23. Replies
    27
    Views
    3,171

    Technically the design of that press is not good....

    Technically the design of that press is not good. The base plate on four feet bends under the pressure, one will never be able to maintain a deck flat. If it’s only to put pressure on the cards’...
  24. Replies
    41
    Views
    5,043

    If the minimum diameter is written on the bar,...

    If the minimum diameter is written on the bar, you only need to divide that measure in two. Who cares about insert tip radius, wear, and tool deflection?
  25. Replies
    89
    Views
    12,202

    I take CHF 90 per hour. Specialised work costs...

    I take CHF 90 per hour. Specialised work costs more.
Results 1 to 25 of 1053
Page 1 of 43 1 2 3 4