A forum member asked me a question and i decided to post it on here instead of straight to him for 2 reasons. First reason being that from what i understand now i the wharncliffe blade is actually more than likely a Sheeps Foot design. I had always heard the name "wharncliffe" but until the difference between that and a sheeps foot was asked of me i had never really researched it. From what i gather the wharncliffe has more of a sharpened point and the sheeps foot has the sharp curve of the spin down toward the cutting edge and very little if any point.
The second question that was asked of me was about the acid etching on the blades. I am using Ferric Chloride (Archers Etchant) diluted in water (1 container of etchant to one Gal of water) . I keep my fluid in a large tuperware container but i would be much better off to make a PVC tube to suspend the blades in the fluid . I rest my blades in the fluid standing up so that there is even fluid on all sides, if i just lay them in the fluid you end up with light spots where the blade rest on the container walls. Carbon steel blades blades etch very quickly (i do 30 sec intervals) 440C etches fairly quickly, these blades were etched for 20min because i wanted them very dark. A 5-10 min etch on 440C gives a nice stone grey look. CPM154 takes a while to etch, i have done 20-30 min to get a medium dark etch. After i etch the blades i rinse them with dish soap and warm water and then place them in a industrial vibratory bowl with triangular ceramic media and water with a little dish soap and let it run for about 30 min. Thats the way i have done it so far.
thanks
steve