Reliable 1206 and 0603 footprints

It is true that the learning curve for Allegro is steep with it's mixture of menus and forward/backward selection and operations, but once you get the hang of it it is very rewarding since you will be able to do a lot of "powerful/dangerous" things with it. Furthermore, you and your organization can grow with it. I strongly suggests that you search the internet for beginners tutorials and also for the IPC 7531 standard (or recommendations) that will guide you in your efforts to find the dimensions you need. I almost always use the built-in wizard together with my own template to create footprints and then modify them if necessary to suit my needs.

For tutorials, there are a few that emanates from the world of academics. They are not always for the latest 17.2 versions, but they are good starters.

For up-reving older footprints, you will need to run DBDoctor stand-alone (!) and once invoked, you will be able to uprev an entire library but bear in mind that the File|Open menu does not allow you to enter wildcards such as *.dra or *.pad. You can point to the specific library folder of interest, but the remaining wildcard *'s will have to be entered using the keyboard.

If you find a downloadable library, you will anyway have to verify that it is useable according to your organizations requirements. Especially naming conventions for foot prints and pad stacks.

Well thank you very much

I found this for IPC. Taking a diagonal look...

As for the DBdoctor I already know the process - noproblem with that at all. Only when I insert the doctored part (0603) I still get "E- Cannot load symbol 'R0603".  Some hint on that?

After all after searching on the internet I fell upon another community post referring: 

"...little secret of the EDA industry: Thousands of engineers everywhere reinvent the wheel every day - they all create many of their sch symbols & pcb footprints from scratch."

So there seems to be some useless added complexity in our engineering lives on this point. I will try to keep it simpler.

p.s. I work stand-alone, no organization at all.

 

 

There are free (and paid for tools) to help with PCB Footprints. Look at orcad.co.uk/.../Footprints.pdf. SnapEDA and UltraLibrarian are good websites but make sure you get the 17.2 versions. Also inside the installation folder is a sample board that has many footprints (to an IPC Standard) that you can extract using Export - More - Libraries. Look at C:\Cadence\SPB_17.2\share\orcad\examples\pcbdesign\pcbdemo1\allegro. There is a DEMOJ-complete.brd.

This has been helpful! thanks!

Going for the free versions I found some Panasonic and Vishay datasheets and created from there with help from a video made by R.Feranec.

Complex enough but intuitive was the C:\Cadence\SPB_17.2\share\orcad\examples folder where I found your reference and another one.. this must be a final "superpro" model.