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  • Users: KT77
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  1. KT77

    ROT PCB Mech Mounting Hole Spacing

    There's no way some formula is going handle all this stuff. I agree.
  2. KT77

    ROT PCB Mech Mounting Hole Spacing

    Hi. Haven't been by here for awhile. 'Traditionally', I have been using 4in spacing for .063 and 6in spacing for .093 circuit boards (greater than 6"sq, commercial duty). I can't remember where I got these rule of thumb numbers (they were told to me at some time in the 90s), so I decided to...
  3. KT77

    Inventor classes in So Cal

    Mike Here's the link I told you about. Just call them. http://www.professionaldevelopmentcenter.com/contact.htm Good luck! Tracy
  4. KT77

    system freezing

    C'mon mcgyvr....I'm not blaming IV at all. It worked fine w/ my old Matrox card, too...until the assembly really got big. I was experiencing the same thing w/ large SW assys. I went to ATI because Matrox is largly untested for IV...and I wasn't up to paying $1k+ for a higher end card that SW...
  5. KT77

    system freezing

    I taked to VAR, and he got me to all that. I eventually called Nvidia, and they were actually the most helpful. They tried to get my ATI card to work...but we determined it's prob the card...so I ordered a Quadro FX 1700...just waiting for it to arrive..... Not bashing IV, but I've been running...
  6. KT77

    system freezing

    XP SP3 3GB sw userva set to 2500 Defragged on Sun dual VGA new Intel MB temp files cleaned out before defrag 'Using Direct3d or OpenGL?'....I don't know where do I find app options/hardware tab? I'll uninstall/reinstall drivers this AM thanks!
  7. KT77

    system freezing

    XP-Pro 32bit 4G RAM 2.7Gb allocated to IV 2009 just upgraded to ATI FireGL 3600 (from using Matrox Parhelia) At about 2 min into working in Inventor, my system completely freezes up. I checked Solidworks, and it freezes up, but system remains active and usable. Doesn't seem to affect pcb...
  8. KT77

    any audio tube guys here?

    alrighty PP EL34, fixed bias, given varying plate voltage (200-400Va-k), and screen voltage following by a few volts (via screen resistor tied to OT CT), does the plate load vary much w/ varying Va? How much over 50V variation? How much over 100V variation? I'm just looking for ballpark...
  9. KT77

    Inventor classes in So Cal

    I'm in Pasadena, CA. SW user since '98 Do any of you know of any Inventor classes, schools, seminars, etc in the Lost Angeles area that I could look into? I'm already using Inventor 2009, but it would help if I could get a little one-on-one, or even a JC class. Pasadena City College only teaches...
  10. KT77

    any audio tube guys here?

    I have a few questions regarding plate voltage and AC load.
  11. KT77

    modifying sketches

    #1 worked great. I wonder why this isn't in any of the Inventor books I have. It's such a necessary task. Thanks mcgyvr! #3 is what I resorted to, but made a lot more work to clean up.
  12. KT77

    modifying sketches

    SW user attempting to use IV 2009 I make a flat, square plate (sketch a square and extrude). I save the part. I use the part in an assembly. But now I want to go back and lightweight the square plate. I edit original sketch, and add big circles inside (something I'm used to doing a LOT). But...

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