stanleycayochok wrote:
I forgot to mention we already have licenses for Library expert pro (2016.14) but not yet fully utilized. We have an existing library for mentor expedition and we are planning to overhaul, either we fix or rebuild from scratch, since we encounter problems during manufacturing like solder shorts. I have accessed POD before and downloaded some components but is it possible to download the footprints for the "Library Expert Surface Mount Families.pdf" and "Library Expert Through-hole Families.pdf" located at "C:\Program Files\PCB Libraries\Library Expert 2016\Documents" |
Stanley,
I wanted to offer an opinion from someone who DOESN'T work for PCB Libraries.
(1) IS IT WORTH REBUILDING FROM SCRATCH? When I switched from using whatever footprints I could find from wherever I could find them, to using Library Expert Pro's output, the quality of everything I produced made a big leap. I even had a contract manufacturer make an unsolicited comment on the change, saying the boards I sent were the nicest and easiest to deal with that they had ever encountered. That was what REALLY sold me on PCB Library Expert. I made the jump while switching CAD tools, so it wasn't a hard decision to make. Nevertheless, my opinion is that it would be worth rebuilding from scratch. I LOVE my uniform footprints, and I love how well the boards always come together.
(2) IS IT POSSIBLE TO DOWNLOAD FOOTPRINTS SHOWN IN THE PDF FILES? You asked, " is it possible to download the footprints for the "Library Expert Surface Mount Families.pdf" and "Library Expert Through-Hole Families.pdf", which makes me think you may not have found the huge libraries that come with Library Expert Pro
You found those pdf files in "C:\Program Files\PCB Libraries\Library Expert 2016\Documents." If you look one folder over in "C:\Program Files\PCB Libraries\Library Expert 2016\Libraries" you will find the default libraries that are included with the pro version. The surface mount and through-hole libraries are called SM.fpx and TH.fpx respectively. (There is also a BGA.fpx for BGA components.) The default libraries include a MASSIVE number of parts from various suppliers, and I find that at least 2/3 of the parts I need are already in there, searchable by case code. For example, the SM.fpx that comes with Library Expert Pro includes (currently) 3124 different footprints for surface mount components, and since each supplier will use the same footprint on multiple devices, it must cover tens if not hundreds of thousands of parts.
For example, I just Googled "Quad 741 opamp" looking for the most generic part I could imagine; up comes TI's LM348. I scrolled to the bottom of the datasheet and found that the SOIC package has a case code of "D R-PDSO-G14" I opened Library Expert Pro's SM.fpx file and searched for "D R-PDSO-G14" and immediately found the footprint.
When I don't find a footprint in the provided libraries, I next check the "Parts on Demand" service (now called "Free Parts" and get at best a 50% hit rate. (This low hit rate actually doesn't surprise me, since I only search online after checking default libraries, and so many footprints are already included in the default libraries.) If the part is found online, a single click downloads the component-specific.fpx file.
From either the default library or the downloaded fpx I can have a beautiful footprint generated in Altium in about 30 seconds, so perhaps 90 seconds total from selecting a part to having a "prefect" footprint consistent with the rest of my library.
Finally, I actually copy the footprints I find in the default libraries and paste them into my own company library, so I can keep better track of what footprints I'm actually using. This adds 30 seconds or so to each footprint generation.
In summary: (1) Yes, I think you would find it worthwhile to rebuild your footprint libraries from scratch, and (2) Yes, you have access to all the parts you saw in those pdf files.
-Alex
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