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Altium vs Orcad

Discussion in 'Electronic Design' started by Jon Slaughter, Oct 16, 2007.

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  1. SMD parts do not take kindly to being removed and reused.
    Do yourself a big favour and buy new ones. 0805 or 1206 will be much
    easier to solder, easier to route tracks under (if needed), and cost
    practically nothing.
    You are taking my post out of context, I only said that in relation to
    the price of Altium Designer.
    Then I would not start with 0603's, use the bigger and easier to
    handle 0805's at least.
    "Rules" are the reason this is turning from a molehill into a
    mountain.
    If you want a standard jumper length and no holes on your board then
    that's possible using 1206 or 0805 zero ohm resistors as jumpers.
    That's why you need to practice.
    Routing is an art, and single sided can require a different
    methodology to double sided, which in turn can use a different
    methodology to 4 layers, and so on.

    Dave.
     
  2. I'll add to that you can of course also do hole-less jumper link using
    other methods like a through hole zero ohm resistor with the legs bent
    to make it surface mount. The longer your "jumper" the fewer you
    should need because you can route more tracks under there etc.

    It's all a big trade-off as with many aspects of PCB design and
    layout.

    Dave.
     
  3. I just got finish routing it. I got away with just 4 jumpers. I posted the
    route in alt.binaries.schematics. I might try and optimize it after I figure
    out how to print it to the correct scale ;/ lol.

    I can get away with 0 jumpers if I were to route between the smd resistors.
    So its actually possible with this design to do it with no jumpers. I'm sure
    I could shring the horizontal dimensions too but I guess I first need to
    verify the design to makes sure everything works.
     
  4. Anyone interested in the discussion about me routing my little project can
    look at what I did in alt.binaries.schematics.

    In this case it is possible to do it with 0 jumpers if I were to route
    between the smd resistors. This is what I was after in the first place.
     
  5. Damn, this thing is huge ;/ its about 4''x2''. Thought it would be smaller.
    I guess I could make the headers smaller. I created the footprint because I
    was thinking I might have to route more traces between them but I guess I
    can actually do it a lot smaller. Sucks to have to go through it all but I
    guess thats where experiences come into play.

    I'm thinking that I could probably increas the pad distance on those smd
    resistors a bit and put a trace between them to avoid the jumpers
    completely.
     
  6. James Beck

    James Beck Guest

    My copies of 2000 and 2001 don't have dongles.
    Just an installation key.
    Maybe something to do with a multi-seat copy???
    2006 may not have a dongle, but if it is anything like 2004, it calls
    home every time you run it, and it gets bitchy if it can't.

    Jim
     
  7. Perhaps you'd like to post it to a web site so more people can see it?
    It has not showed up on Usenet Replayer yet, so I can't see it.

    4 jumpers sounds like a good effort.

    Dave.
     
  8. Perhaps you'd like to post it to a web site so more people can see it?
    It has not showed up on Usenet Replayer yet, so I can't see it.

    4 jumpers sounds like a good effort.

    Dave.
     
  9. 0805 is such a nice size. Easy to mount, etc. They seem like they are
    made better too sometimes.
    Tango PCB.
     
  10. Good ol' fashioned teflon sheathed 28GA TPC jumper wire also works well
    for "jumpers". Imagine that. Don't forget the super glue "Tak-Pack".
     
  11. Likely design rule violation, depending on the resistor form factor
    used.
     

  12. Alt.binaries.schematics.electronic D'OH!
     
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