Thread/Feed chart and change gears

[Vinny]

You can use a hob by first putting notches in your blank. Once you have that the hob will drive the blank until it becomes a gear. A guy named Jose did a video on cutting gears with hobs and even how to make a hob. The video is good for the technique and gotchas, but that's about it. Most importantly, do NOT listen to his math and secondly do NOT pay attention to his [in]ability to count. Outside of that, it's a good video!