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Type: Posts; User: jz79

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  1. Replies
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    1,096

    sometimes the whole idea is to spend on something...

    sometimes the whole idea is to spend on something that only they appreciate, as to show how little regard they have for the money they have and are willing to spend, and potential profitability...
  2. there is definitely something going on with the...

    there is definitely something going on with the material in the marked areas - that is why I insisted on a photo, I was expecting something like this, would be interesting to see it under filtered...
  3. it seems that the pictures are telling a story:...

    it seems that the pictures are telling a story:
    1) the line width on the part seems to correlate with the lighter/darker patches of the part itself, perhaps that is an optical illusion, but I...
  4. do you want to actually solve this or just talk...

    do you want to actually solve this or just talk about it for couple more days wasting peoples time?

    it takes 5min to make a decent pic of the problem, and I'd also suggest posting pic of the drag...
  5. picture is worth a thousand words... under...

    picture is worth a thousand words... under magnification, to see what the "bad" line looks like next to a good one
  6. Thread: Anodizing 7075

    by jz79
    Replies
    11
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    927

    take a very good luck at the racking points on...

    take a very good luck at the racking points on the part, area next to them, look for soft/flaking oxide, signs of erosion due to sparking, if it is there - you need to increase the number and quality...
  7. it is normal for the equipment would the fair...

    it is normal for the equipment would the fair thing to say, machines like that are forbidden to be discussed on this forum btw

    if the spring action is smooth with no sticking and the diamond shape...
  8. might be the cross feed screw and handwheel that...

    might be the cross feed screw and handwheel that was taken off before they put it in the truck to avoid bending it during loading/unloading, look carefully at the beginning of the vid, it is still in...
  9. that was a WTF moment for me also, but there is a...

    that was a WTF moment for me also, but there is a way to switch back to the original layout, I can't recall exactly how the option was named, found it by googling, somewhere under preferences checked...
  10. Just tested that indeed Parasolid cannot be...

    Just tested that indeed Parasolid cannot be opened without an online converter, but it will open STEP files no problem, perhaps something to do with licensing, since Parasolid was Siemens owned(?)...
  11. not a great way to start off with a lie, it isn't...

    not a great way to start off with a lie, it isn't could based as you present it, it actually installs the program on your pc and can run offline as well for some period of time till it needs to...
  12. Replies
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    that is wrong, you want 0.10~0.05 for solder to...

    that is wrong, you want 0.10~0.05 for solder to flow, specifying both at 8.00 h7/H7 is basically a press fit, you can end up with 8.00 shaft and 8.00 hole, both in spec - press fit and no room for...
  13. Thread: Deeep 1/2-20

    by jz79
    Replies
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    5,976

    besides the tapping complexity, the U shape is...

    besides the tapping complexity, the U shape is liable to split open - meaning reduced load capacity, which leads me the design was probably dictated more by aesthetics rather than ease of production,...
  14. but organizing a coup in Australia was probably...

    but organizing a coup in Australia was probably much more expensive...
  15. Thread: Deeep 1/2-20

    by jz79
    Replies
    68
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    5,976

    Tried to google those designs and I can't really...

    Tried to google those designs and I can't really see where the 14" continuous thread would be used or necessary there, not saying it couldn't be there, just showing my ignorance
  16. Thread: Deeep 1/2-20

    by jz79
    Replies
    68
    Views
    5,976

    I sometimes am asked to look at some scientific...

    I sometimes am asked to look at some scientific equipment, and those are famous for odd irrational solutions, sometimes even remotely justified, but this 14" thread is just ridiculous, had it been...
  17. Thread: Deeep 1/2-20

    by jz79
    Replies
    68
    Views
    5,976

    does bragging rights count as a valid reason? :)

    does bragging rights count as a valid reason? :)
  18. Replies
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    to those who think this is just normal, here is a...

    to those who think this is just normal, here is a story about recent experience with Farnell:
    to be fair to them - prior brexit they were simply fantastic, I could order something in the morning...
  19. Replies
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    6,898

    belleville washer stack inside the drawbar...

    belleville washer stack inside the drawbar cylinder is what is pulling the fingers up all the time, and when you activate tool change and push the button, hydraulic pressure is acting on the piston...
  20. seems like someone is reinventing a wheel... ...

    seems like someone is reinventing a wheel...

    pretty much every process that can be easily done with aluminum has already been described in number of books (if you don't trust internet forums),...
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    probably you have waaaay too many of that size...

    probably you have waaaay too many of that size parts in the drum at once and they are rubbing on each other, make runs of 10; 20; 30 etc parts per load to find the max amount you can run at one time...
  22. there was a listing here not so long ago about a...

    there was a listing here not so long ago about a university looking for a machinist, that might be one option, because medical, with all their recent activities, might fall right into the "defence"...
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    sorry, when I replied to the PM I didn't notice...

    sorry, when I replied to the PM I didn't notice this post

    no, you don't need to compress anything to take the drawbar cylinder off

    from the bottom - loosen the set screw for the claw...
  24. Replies
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    I'd prefer the mentioned car glass urethane over...

    I'd prefer the mentioned car glass urethane over any silicones, less risk of contamination that may cause problems with processing the parts afterwards, I've had deal with issues of silicone...
  25. even regular typeII will powder when drilled,...

    even regular typeII will powder when drilled, black dye means it will (usually) be thicker oxide than other dyes, also higher contrast of the powder on black makes it more noticeable

    proper...
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