You all know how much I love using cardstock folding templates, right? For a few years now I've been playing with the idea of a cardstock bias tape maker. Whenever I had a project involving bias tape, I would experiment, fail miserably, and scrap the idea. Well, right now I'm working on a Sis Boom pattern that requires picture perfect, 1/2" wide single fold bias tape. I have a metal tape maker that size, but I don't have the patience (or the dexterity) to keep the fabric centered for such small, even folds. So I was forced to revisit my paper folder idea, and I'm pleased to say I came up with something that actually works!
The contraption is optimized for folding 1.125" bias strips in 0.5" wide single fold tape. You can tweak the starting strip width a bit to get slightly wider or narrower tape.
Here is how it works: The strip is fed into a "slide" that does the folding. The top notch and tabs keep the strip centered, and the "splitter" keeps the outer edges from curling or overlapping. The folded tape is pressed as soon as it comes out of the slide, and it goes under two more tabs to set the folds as they cool.
Why do I feel like I'm narrating an episode of How it's Made?