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  1. Thread: "Lazy" coolant

    by jz79
    Replies
    8
    Views
    293

    is there a coolant flow diagram somewhere in the...

    is there a coolant flow diagram somewhere in the manual? it sounds like a stuck valve, stuck near closed position

    there might be a one way mechanical valve somewhere or a solenoid controlled one,...
  2. Replies
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    86,757

    pictures with that days Taiwanese newspaper in...

    pictures with that days Taiwanese newspaper in the background preferably :D
  3. Replies
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    86,757

    keep regular updates with pictures coming and...

    keep regular updates with pictures coming and this whole thing may still turn positive, just don't blame upcoming problems on something, anything, say there is problem X, we're working to solve it,...
  4. not an in-shop method, unless you have a press...

    not an in-shop method, unless you have a press brake, and if you don't need the near perfect radius at the bottom, would be to use a press brake, if the final shape is "U", you'd start with small...
  5. from what I red, the early treatment plan in...

    from what I red, the early treatment plan in hospitals using hydroxychloroquine was to give it to patients who were starting to get worse (progressing from serious to severe/critical), they were...
  6. Replies
    689
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    86,757

    Wasn't it in the Chinese culture that they very...

    Wasn't it in the Chinese culture that they very rarely will admit to their mistakes, lose face in public so to speak? That would explain more than couplet things...
  7. I'm terribly sorry for the confusion, here are...

    I'm terribly sorry for the confusion, here are more traditional units and corresponding numbers:
    table length - 2 and 31/50 cubits
    the total expansion of said SS sheet over 50F would be 8 and a...
  8. thermite, I'm guessing no one is spraying water...

    thermite, I'm guessing no one is spraying water on that mdf board, air humidity changes would affect such things, significant changes would be noticeable between winter/summer, but not so much from...
  9. I don't think the moisture effect would follow...

    I don't think the moisture effect would follow day/night cycle, its too quick

    The error in the design seems the use of epoxy to glue the SS to the board, if I were to glue it at all, I'd use much...
  10. here is my amateur effort trying to solve this...

    here is my amateur effort trying to solve this same issue few days ago (I had no way of balancing the wheel alone at the time), one pic shows the hub on my grinder with adjustable weights, the other...
  11. the way I understand function of this device is...

    the way I understand function of this device is that it is not balancing anything, but instead it doesn't allow the system (spindle column) to go into its natural oscillating frequency by constantly...
  12. Thread: Titanium or SS?

    by jz79
    Replies
    13
    Views
    784

    9/16-40 multistart thread? and the material...

    9/16-40 multistart thread?

    and the material options being Ti or _cheap_ stainless steel? at least here, Ti on average is 4 or 5 times more expensive than the "expensive" 316 stainless...

    this...
  13. Replies
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    2,582

    I was just watching few vids of the S700 changing...

    I was just watching few vids of the S700 changing tools, and there is a pause between the initial Z+ move and the moment the grippers grab the tool and additional Z+ move is done for spindle to...
  14. Replies
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    2,582

    spindle decel rate affecting tool changes? that...

    spindle decel rate affecting tool changes? that sounds quite odd...
  15. if longer etching times can be proven to cause...

    if longer etching times can be proven to cause more problems, then it might be that the deox tank is not removing everything from the surface of the parts, etching eats away aluminum leaving alloying...
  16. coolant most certainly can be the cause (you must...

    coolant most certainly can be the cause (you must check pH of the coolant, compare to manufacturers spec sheet), especially on 2xxx or 7xxx series alloys, check where the spots are, if spot density...
  17. Replies
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    10,571

    so the arbor was made to the 1:12 taper with 23mm...

    so the arbor was made to the 1:12 taper with 23mm at the narrow end, I used a sharpie to mark the balancing arbor and tried to spin it inside the hub with light pressure (the taper wants to slightly...
  18. Replies
    28
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    1,661

    I now read what I wrote and yes, there is a...

    I now read what I wrote and yes, there is a slight "contradiction" :)

    Regarding the pressure and lapping, because there are a lot of tiny sharp edges on the lap, you need to overcome the...
  19. Replies
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    10,571

    I'll append my question to this thread so as not...

    I'll append my question to this thread so as not to make a new one for a simple and short answer

    I need to make a balancing arbor for my Jung F40 surface grinder and can't really find any...
  20. Replies
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    898

    Chiron are ones that use custom linear guides, so...

    Chiron are ones that use custom linear guides, so if possible, do a visual inspection, look for any signs of wear there, corrosion, do some test cuts to get idea of condition if possible,...
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    a flat file if it is reasonably sharp, will still...

    a flat file if it is reasonably sharp, will still cut material of a flat work piece, because the contact area of the teeth of the file is small and can be overcome with hand pressure

    the whole...
  22. they have safety cells in those boats now, reason...

    they have safety cells in those boats now, reason being - those crashes previously usually killed the driver, not just the risk of drowning before help arrives, but Gs from impact and tumbling
    ...
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    86,757

    it is almost like he was advised by his lawyer to...

    it is almost like he was advised by his lawyer to post some excuses from time to time to imitate some sort of activity, nothing he is writing seems believable any more, that excuse of semi finished...
  24. Replies
    111
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    5,440

    the only real problem with these machines is that...

    the only real problem with these machines is that they are not tools, they are life long projects that need constant attention, mainly because of the quality of castings - the iron itself seems to be...
  25. Replies
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    14,365

    stretched cables acting like springs probably...

    stretched cables acting like springs probably helped to yank the boom over also when the strapping or the hook failed

    here's a better resolution video of the damage
    ...
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