Duncan Davidson and Greg Koenig joined forces a few years back to start Luma Labs, a firm that makes across-the-chest camera straps. The two collaborated first on Luma Loop, a free-sliding camera strap, and then created Cinch, one that holds a camera tighter but still allows for movement. The Loop was kaboshed by a potential patent lawsuit; the second model has been a good seller, but with volume comes decisions about ramping up production. In this episode, we discuss all that, how they developed the original Cinch and Cinch 2 (about to be released), and quite a bit about rapid prototyping.

On Twitter, find them at @lumalabs, @duncan, and @gak_pdx (Greg)