I just tried one of my old jack-knife blades which is 7/16ths and it did fine at an angle of 19 degrees, but it had to be mounted high in the slot, not down onto the prongs of the depth gauge. I haven’t checked at more angles but I susupect if I tried to get a very acute angle, I would start to brush the upright of the vise.
Hope that helps!
Cheers
Leo
What is the minimum blade height (spine to edge) that the WEPS can sharpen? I imagine that there has to be a limit because the clamp will be so close to the blade edge that it will start to interfere with the stones. Most of my blades are plenty wide, but I do have a few pairing knives and such that are around 7/16 of an inch.