If you enjoy the forum please consider supporting it by signing up for a NES Membership The benefits pay for the membership many times over.
i recently bought a shun paring knife. while perusing their site i found this:
it got me to thinking that it would be nice to have a similar setup where the angle of the stone holder was adjustable. whetstones are the best but holding the proper angle is hard to learn. anybody can eyeball hold a knife straight against a stone (see spyderco sharpmaker usage).
i searched for adjustable angle blocks, adjustable sharpening blocks, adjustable knife sharpeners but only got machinist/woodworking tools or cheap pull through sharpeners in my results, plus the systems like what the op posted.
my question is....does such a base exist? what search terms would you use to look for it?