inferno
( ͡° ͜ʖ ͡°) <*))))><
i have done some edge retention testing on cardboard and i can safely say it sucks ass.
so i had this r2 blade at hand. and i figured it would be totally dead at about 2 cardboard boxes. i have tried an r2 blade before and it was dead after 0,5+0,5 boxes, really dull. then i tried this out another time at work. i figured another r2 blade would do fine as trial run but it turned out i could cut cardboard until the cows come home and then some.
before i had cut up 2 cardboard boxes and after that 2 knives were dull. 1 r2 and 1 aus8. but now at work i went through 175m of cardboard (documented) and the r2 blade would still slice paper cleanly. maybe i had more abrasive cardboard last time?? i dont know. turns out cardboard can be very different. with or without clay for instance.
at my job i has gathered about twice as much cardboard as i thought i would need. 2 ply 8,5mm but it turns out this means jack ****. because i could cut this **** for ages. and basically nothing would happen.
so far i have gotten calluses on my thumb and then i have over worked my right arm from all cutting. and then the handle cracked on my knife. but it was probably unrelated though.
in the end it turns out for me at least that pretty much all steels from japan except maybe globals will keep a good edge for as long as you would ever want it. i still cut about 150 more meters of CB with the r2 blade. it would still cut print paper. ymmv i guess. it definitely did with me.
that being said i dont trust catra tests more than my dick.
whats a good edge retentiion test we can all perform?? it has to be reproducable.
ideas?
for me at least cardboard is out of the game because of the varibility.
so i had this r2 blade at hand. and i figured it would be totally dead at about 2 cardboard boxes. i have tried an r2 blade before and it was dead after 0,5+0,5 boxes, really dull. then i tried this out another time at work. i figured another r2 blade would do fine as trial run but it turned out i could cut cardboard until the cows come home and then some.
before i had cut up 2 cardboard boxes and after that 2 knives were dull. 1 r2 and 1 aus8. but now at work i went through 175m of cardboard (documented) and the r2 blade would still slice paper cleanly. maybe i had more abrasive cardboard last time?? i dont know. turns out cardboard can be very different. with or without clay for instance.
at my job i has gathered about twice as much cardboard as i thought i would need. 2 ply 8,5mm but it turns out this means jack ****. because i could cut this **** for ages. and basically nothing would happen.
so far i have gotten calluses on my thumb and then i have over worked my right arm from all cutting. and then the handle cracked on my knife. but it was probably unrelated though.
in the end it turns out for me at least that pretty much all steels from japan except maybe globals will keep a good edge for as long as you would ever want it. i still cut about 150 more meters of CB with the r2 blade. it would still cut print paper. ymmv i guess. it definitely did with me.
that being said i dont trust catra tests more than my dick.
whats a good edge retentiion test we can all perform?? it has to be reproducable.
ideas?
for me at least cardboard is out of the game because of the varibility.