Writing an Instructable based on another Instructable - What's acceptable? Unacceptable? Answered
If I learn to do something from someone else's Instructable, can I then write a more detailed/expanded Instructable about it? Hypothetical (and rather silly) example: Suppose that John Q. Ible is the author of an Instructable on "How To Make the World's Greatest Widget Out of Dryer Lint and Gum Wrappers." I read it, get enthused, and make a couple World's Greatest Widgets for myself. Although John's Instructable is pretty good, I find myself wishing that he'd had a few more steps detailing just how to combine the lint with the wrappers, that he'd said more about how adding toothpicks can make the W's Greatest W even Greater, and that he'd included a warning about walking and chewing gum at the same time (I escaped serious injury, but still... ). Is it okay to write my own Instructable with all the stuff I wish John's Instructable had included? Should I credit John in the Intro? Do I need to PM him with an offer to collaborate on the expanded Instructable? I'd be adding new, original material; but the whole thing would be based on John's idea & method - what's the etiquette on this sort of thing?