like Scotts says, same principal. The other way is file. no one seems to say much about the humble file anymore but they have a tremendous ability to remove material! for roughing, press on the back of the file where you want to remove material - this can provide a lot control
Scraping is a valuable bench skill - anything that isn't flat will be distorted when clamped. So a casting or some precision items should have a reference datum formed by filling & scraping - this is where it comes in as a valuable bench-work skill
The ultimate move into the 20th century is a power scraper. Biax is the on to get, probably come up on ebay, bloody expensive new (are they still made?)
the one thing i can see is that hand scraping tends to have a self regulated depth of cut - when you are finishing with lighter strokes you don't accidentally take out a thou and a half....that might be a weakness of the dremel that deserves some experiment at least
imo its not an art or a guild or anything to be purist about. its a technique that through efforts like yours, more and more will realize is very useful around the shop (for a lot more than machine ways) and that is is not beyond them to get good results from...so i applaud your efforts  |