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Cad Program for Schematics?

Discussion in 'General Electronics' started by Gary Lecomte, Dec 4, 2003.

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  1. Gary Lecomte

    Gary Lecomte Guest

    Does anyone have suggestions for a simple, but good Cad program for
    drafting Schematics?
    Preferably one that will save directly in a JPG, TIF, GIF or simular
    types of these formats.
    Shareware would also be nice!

    Take care....Gary
  2. Robert Baer

    Robert Baer Guest

    Why those formats; none of them are vectorand so are useless for
    making Gerbers for a PCB.
    If you want to fiddle with a freebie for smapp production runs, try:
  3. maxfoo

    maxfoo Guest

    you can save to those file formats with any program if you use "ALT -PRT SCREEN"
    to copy into the windows clipboard then paste into a freeware paint program like

    Remove "HeadFromButt", before replying by email.
  4. Abbie

    Abbie Guest

    You left out autocad, they have a library for electronics ?
  5. Boris Mohar

    Boris Mohar Guest

    He also left out Etch-A-Sketch.
  6. Bob Stephens

    Bob Stephens Guest

    Some of the non-electronic guys here use VISIO. There are numerous
    collections of templates - they're called something else in VISIO -
    available for free on the Web, including electronic schematic symbols.

  7. Will it generate a partlist and netlist?
  8. Bob Stephens

    Bob Stephens Guest

    Nope, just graphics as far as I know. You will need a real schematic
    capture package to generate a usable netlist. I haven't looked into it for
    a number of years, but the ECAD vendors used to practically give their
    schematic packages away to lure new users into their camp, planning to sell
    them the pricey stuff - PCB layout, autorouters etc - down the road.

  9. Jim Thompson

    Jim Thompson Guest

    Track down a copy of PSpice Schematics. IIRC *none* of the versions
    require a key... only PSpice (the simulator) looks for the

    ...Jim Thompson
  10. Bill Sloman

    Bill Sloman Guest

    For Linux freaks, there is always gEDA

    which is included in Terry's list.
  11. Ken Smith

    Ken Smith Guest

    If you just want to draw a schematic, you can look at Linear's free spice
    program. The schematics it makes are not bad to look at. It will output
    a spice net list for the circuit.

    You can convert to a graphics format by printing to one of those
    converting printer drivers.
  12. Gary Lecomte

    Gary Lecomte Guest

    I didn't say I wanted a PCB Program, I have one and it generates
    Gerber Files. But when I draft up a Schematic to post on my site or
    send to a friend, I have to Print it and than Scan it. I find some of
    the fine Detail gets lost in the scan.

    I want a SIMPLE program Only for Schematics, that generates a standard
    Viewable Format!
    Could care less if it has symbols, I prefer to make my own.

    I didn't think this question was so hard!

    Take care......Gary
  13. qrk

    qrk Guest

    I believe I saw a download for schematics on the Cadence web site a
    month or two ago.

  14. Jim Thompson

    Jim Thompson Guest

    Now *there's* a twist for you... Cadence is abandoning support for

    ...Jim Thompson
  15. DG

    DG Guest

    I think he might be less concerned about making PCBs and more concerned
    with drawing schematics for strictly visual purposes. In this case,
    visio is actually a good option. Otherwise almost any CAD program will
    do the trick.
  16. Rich Grise

    Rich Grise Guest

    Depending on what version of windows you have, you can capture the
    screen to either the clipboard or, for example, Paint Shop Pro.

    I think ALt-PrtSc, (or Shift, or Control- or Control-Shift, or
    whatever) will put the screen on the clipboard, and you can paste
    it into any image viewer. I've done this with OrCad, both ways.
    (i.e., using PSP's capture function, as well as the PrtSc-> clipboard

    You might have to do it in segments and splice them together, but I'm
    sure you'll figure it out. :)

    Good Luck!
  17. Jim Thompson

    Jim Thompson Guest

    PSpice Schematics allows you to make your own symbols. I currently
    have hundreds.

    ...Jim Thompson
  18. When I need a graphic I can't save I use the freeware shell for
    Ghostscript & Ghostwrite from It creates a PDF
    file, then I can extract the graphic(s) with the graphics select tool in
    Acrobat reader (5 and up) Its handy for those web pages that use HTML to
    post an image you need to extract data from, but cant save directly to
    disk. I found some exploded views of a radio I needed, but my computer
    is in one building, and the bench is in another so I converted the file,
    blew it up a little, and had an 8" * 11" drawing to find the part
    numbers I needed to order.
    21 days!

    Michael A. Terrell
    Central Florida
  19. JeffM

    JeffM Guest

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