cardboard sharpening wheels

rocketmann · May 8, 2008

I am having a little trouble with some cardboard wheels that I bought from Jantz. The wheels seem to be out of round, when I apply the edge of the blade to the wheels I get bump/bumpity bump bump and even though I'm wearing my tin foil hat (which covers my ears by the way) I can't seem to make it stop.The wheels are mounted on a 3450rpm buffer, is this too fast ??? Even if it is too fast the things would still bump at 1750. Any sugestions?? I'm running low on tin foil here

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george tichbourne · May 8, 2008

Try dressing the wheel while it is running with a coarse file. A couple of sessions will improve the balance significantly.

George

richard j · May 8, 2008

i had the same problem with the ones i bought. thats why i have the ones i use now. they are the origonal cardboard wheels and they run true. i run my wheels at 1725 rpm which makes it easier to control what you are doing. i use a piece of 30 grit backed up by a piece of wood for more stability and lightly touch the wheel until you have a clean wheel all the way around. its a little easier to keep the wheel face flat if you use a good size piece of wood.

rocketmann · May 9, 2008

Thanks for the help guy's :thumbup:.. The wheels work much better now !!!!!! I love the way they put a mirror finish on the edge... The leather wheel really makes it shine :thumbup:.

jll346 · May 9, 2008

george tichbourne said:
Try dressing the wheel while it is running with a coarse file. A couple of sessions will improve the balance significantly.

George

Ditto. They are also ment to be used at the faster RPM's as you are using.

richard j · May 9, 2008

i find the slower rpm allows for better control when working up a burr. the faster rpm works well for buffing the edge but can create more heat than the slower rpm if drawn across too slow.

Larry Hensley · May 10, 2008

rocketmann said:
I am having a little trouble with some cardboard wheels that I bought from Jantz. The wheels seem to be out of round, when I apply the edge of the blade to the wheels I get bump/bumpity bump bump and even though I'm wearing my tin foil hat (which covers my ears by the way) I can't seem to make it stop.The wheels are mounted on a 3450rpm buffer, is this too fast ??? Even if it is too fast the things would still bump at 1750. Any sugestions?? I'm running low on tin foil here .

HHmmmm More Tin Foil might be needed. I would recomend going to A store and get some more make a nice jacket to go with the hat.

I had the same problem and the guys already touched on it. it took a few tries to get the thing centered. I appreaciate the help with this as well. Thanks for the solutions to those who have answered already.

Bruce Bump · May 10, 2008

Guys, the tin foil hat needs to be worn "Punk" style when sharpening. Also make sure the wheel has a good fit on the shaft with the proper bushing. The shaft isnt bent is it? It can be trued up with a sharp file while it spinning.

I use a sharp 320 slack belt to establish a wire edge and simply take it off with the cardboard wheel. It only takes a couple passes if you have the right angle. I use scratchless pink to charge the wheel.

richard j · May 10, 2008

i have been using these wheels for over 16 years and i havent seen anything as easy to use once you learn how. i used to do it by hand with stones and then i went to an ez sharp system. once i seen the wheels and the results i had to get a set and have been glad i did ever since. i agree with bruce on the hat but it also helps to hold your tongue right when learning how to use the wheels, just dont get too close to the wheel with it out

. for convex sharpening i use the slack belt method also to work up a burr before going to the cardboard buff. you can get by with buying just the cardboard buff and just use your belt sander.