This simple Excel spreadsheet is yours to download free of charge. It has two worksheets for calculating stacks, one that uses limit (max/min) tolerancing, and one that uses nominal plus/minus tolerancing. There's an extra copy of each worksheet that is fully annotated with what I hope are helpful comments. Enjoy!
This PDF is a great two-page summary of ASME Y14.5M-1994. The only way to get this was to attend one of our training classes, but since the standard has been updated, we're giving away the old 1994 version for free. The first page is a summary of all the geometric control symbols that shows graphically how they apply: to surfaces or to features of size. The second is a more conventional reference guide that has a lot of useful information about each control symbol. Enjoy!
