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

Search:

Type: Posts; User: jz79

Page 1 of 14 1 2 3 4

Search: Search took 0.01 seconds.

  1. with "stainless steel shot" I mean stainless...

    with "stainless steel shot" I mean stainless steel balls - they are non-abrading small round balls, nothing special is needed in regards to the blasting equipment, of course they do remove some...
  2. Replies
    3
    Views
    191

    program your holes in the control, mount a...

    program your holes in the control, mount a sacrificial "pallet" on the table where the work piece will be located, offset X by x amount, drill starting and end holes in the sacrificial pallet, use...
  3. you will not get a bright pearly looking finish...

    you will not get a bright pearly looking finish by blasting with sand, that is about the worst thing you can do to aluminum parts (especially if you will anodize them later), you'll get slightly...
  4. Replies
    135
    Views
    4,876

    that is a load of BS, or statistics, whatever you...

    that is a load of BS, or statistics, whatever you want to call that data, I don't want to go in details now, since I'm typing this on a phone, but in short - military spending was too little here,...
  5. Replies
    135
    Views
    4,876

    I'm curious, what is it that is going on in the...

    I'm curious, what is it that is going on in the Baltic region now, as opposed to say 5, 10 or 15 years ago?
    and where are you getting your information from?
  6. Replies
    38
    Views
    1,761

    good advice, this is what happens when the fuse...

    good advice, this is what happens when the fuse is too short and not enough bolts :D

    https://www.youtube.com/watch?v=IU28zuGqOQs
  7. Thread: Boeing 737 Max

    by jz79
    Replies
    1,147
    Views
    91,902

    a better question would be to ask if the AOA...

    a better question would be to ask if the AOA sensor disagreement system, that 80k$ optional extra mentioned few pages back, that lets the computers know that the 2 sensors are not telling the same...
  8. I had problems setting up serial connection...

    I had problems setting up serial connection between the TNC and PC, I wrote about it earlier, serial signal level from the TNC wasn't full +12 for a "1", it was at +2~3V range, on top of that,...
  9. Replies
    11
    Views
    735

    Is there a specific requirement to use stainless...

    Is there a specific requirement to use stainless screws? Stainless steel and aluminum make a galvanic couple, normally zinc plated steel would be used in such places
  10. Replies
    2
    Views
    270

    normally customer will specify thickness and...

    normally customer will specify thickness and color (not RAL btw, just "red", "blue", "black" etc) and maybe a specific seal they want, like "hot nickel acetate", "DI" (means boiling in DI water, no...
  11. venturi vacuum generators are "expensive" to run,...

    venturi vacuum generators are "expensive" to run, they waste a lot of water or air, for a chuck it would make much more sense to have a diaphragm pump (or couple in series for deeper vacuum) and run...
  12. Replies
    508
    Views
    36,606

    if it is like you're saying it is, then the issue...

    if it is like you're saying it is, then the issue wouldnt exist by default, but it is there

    "normal" mode is prioritizing achieving requested feed rate over hitting the calculated ideal travel...
  13. Replies
    508
    Views
    36,606

    if it doesn't "make the corner" in time during...

    if it doesn't "make the corner" in time during high feed rates, like not cutting that round chafer at high speed, it means it lacks accel/decel capability due set parameters, lack of power, or trying...
  14. Replies
    38
    Views
    2,759

    just a tight lid won't help with evaporation,...

    just a tight lid won't help with evaporation, you'll need to seal it (and allow pressure to build), or you'll lose couple liters of water from it during a day, that water will condensate somewhere -...
  15. Replies
    28
    Views
    1,123

    from my personal experience tig welding things...

    from my personal experience tig welding things using back purge, argon is heavier that air, so to purge the air you'd want really slow flow from the bottom towards the top, high flow will make the...
  16. might not be a bad idea, while you're changing...

    might not be a bad idea, while you're changing the end cap, to remove the lead screw altogether, and slide the table with your hands to get a feel how it moves and check for any tight spots, then...
  17. Replies
    508
    Views
    36,606

    the reason for "hammer test" is to see if can...

    the reason for "hammer test" is to see if can deform before braking, ideally it would deform first and only then break

    the closeup pic of the radius leading to cylindrical section has somewhat...
  18. I've seen repairs where the wear on the slide...

    I've seen repairs where the wear on the slide ways was too much for the gibs to compensate, and then a strip of sheet stock was added to the back of the gib (glued) to build up required thickness for...
  19. in the picture one of the X gibs seems to have...

    in the picture one of the X gibs seems to have added brass or bronze strip on it, so seems one of the slide surfaces, maybe if that was part of some repair, maybe something is wrong with the oil...
  20. Replies
    45
    Views
    2,810

    the sine wave is being generated by short...

    the sine wave is being generated by short impulses which in theory can make windings vibrate at other frequencies which wouldn't be there if it was driven from the constant 50/60Hz source, and the...
  21. I have only used it to mill plastic and aluminum,...

    I have only used it to mill plastic and aluminum, and when milling aluminum, I use al specific ZcN coated 3fl end mills, 10mm (22mm cut length), and I've programmed adaptive toolpaths with ~1.2mm...
  22. I don't want to start a debate, BUT :D if only...

    I don't want to start a debate, BUT :D
    if only I could forget seeing him making titanium screws from flat sheets on a tormach with like 95% of stock going into chips, and he didn't cut rectangle...
  23. Replies
    25
    Views
    2,493

    probably the easiest way is this sort of die in a...

    probably the easiest way is this sort of die in a press brake with appropriate stops to locate the flat part on the die:
    268858

    if they don't have a press brake, arbor press might work, 5-10t...
  24. Replies
    29
    Views
    1,755

    ideally you would mask the area before anodizing,...

    ideally you would mask the area before anodizing, and after anodizing is done, chromate conversion coating would be applied (alodine) to the bonding area (aluminum has to be bare, no oxides,...
  25. I don't have a SF32 test bar, I indicated on the...

    I don't have a SF32 test bar, I indicated on the spindle taper directly

    regarding TIR with tools, I mostly use ER25 collet holders, and tap in the nut on each tool to get it under 0,01mm, the only...
Results 1 to 25 of 342
Page 1 of 14 1 2 3 4