Thread: Headlamp for edge test

Dave, definitely need light. It doesn't need to be from directly above though. I personally prefer lighting from nearly perpendicular to the edge to get the best view of what is actually happening at the edge. For the bevel you want to be just a bit higher.

Here are a couple images taken with my scope. The first image is a setup of an edge I was doing some testing with. Two different stones tested side by side, honed with no tape first, then a layer of tape to get side by side scratch patterns. These images are both edges honed on coticule. The 2nd one is a HSS test edge with a slurry dilution. You can see the coticule wasn't able to get back to the edge after slurry honing.





Here is how I prefer to view the edge/apex: