Not to offend anyone but aren't they the same?

same question

They're close - the OBW has you fussy-cutting patterns so you get the same repeat in several "blades" of fabric in order to make the block. The most similar to this is the kaleidescope block. you stack the fabrics so that you slash several layers at once, but they are very carefully placed.

The stack and whack (or stack and slash) is not fussy cut, and is not precise on where the cut is made. In this one you stack the fabrics then make the cuts according the the pattern you want to end up with - four patch, 9-patch, star, etc. Buggy Barn patterns are all stack and slash (that's my generic name for them, many quilters may challenge this.)

No offense. They are both kaleidoscope patterns, but they are very different looking. The OBW is equilateral triangles sewn into hexagons (or octogons), no sashing or other fabrics. Stack and Whack is more like a pinwheel, with different fabrics completing the blocks. Very different looking. Google both, or Search here on the QMB and you can see the difference.

my previous post shows that my definition of stack and whack is different than that of other people...see gaigai's post above. The term "stack and whack" appears to have a specific definition to some people, but I use it in a generic way (which I'm sure causes some confusion to everyone but me)

Stack and Whack is by Bethany Reynolds, and is her term. Here is one:
http://www.quiltingboard.com/t-67715-1.htm

OBW is by Maxine Rosenthal and is her term. Here is one:http://www.quiltingboard.com/t-38558-1.htm

Stack and Whack is by Bethany Reynolds, and is her term. Here is one:
http://www.quiltingboard.com/t-67715-1.htm

OBW is by Maxine Rosenthal and is her term. Here is one:http://www.quiltingboard.com/t-38558-1.htm[/quote]

Thank you so much. I totally understand now. ♥ Lynne