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sharpening with a bench grinder(which way should the wheels turn?)

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Forum topic by shelly_b posted 10-02-2012 10:42 PM 1649 views 1 time favorited 10 replies Add to Favorites Watch
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shelly_b

841 posts in 770 days


10-02-2012 10:42 PM

I got a set of razor sharp wheels for my bench grinder and the instructions say the wheels should be turning away from the sharp edge. My bench grinder wheels turn down, which would be the opposite of what they suggest. Should I go to the back of the grinder so the wheels are turning up?


10 replies so far

View teejk's profile

teejk

1215 posts in 1336 days


#1 posted 10-02-2012 10:58 PM

is it as simple as saying holding a chisel pointing up as the wheel rotates down?

View paratrooper34's profile

paratrooper34

760 posts in 1604 days


#2 posted 10-02-2012 11:32 PM

Shelly, the wheel should be turning down, the way you describe it. This directs sparks and debris immediately down instead of sending them airborne. I have never seen a grinder that works differently than that.

Good Luck

-- Mike

View thedude50's profile

thedude50

3515 posts in 1130 days


#3 posted 10-03-2012 12:27 AM

Yes what para Trooper SAID IS CORRECT.

-- when I am not on Lumberjocks I am on @ http://thisoldworkshop.com where we allow free speech

View shipwright's profile

shipwright

4958 posts in 1450 days


#4 posted 10-03-2012 01:07 AM

Those are great instructions.
Sort of like saying “In case of fire, RUN” but not telling you which way.

-- Paul M ..............If God wanted us to have fiberglass boats he would have given us fiberglass trees. http://prmdesigns.com/

View HillbillyShooter's profile

HillbillyShooter

4565 posts in 944 days


#5 posted 10-03-2012 01:45 AM

As I understand the Razor Sharp system, it is a honing system you use similar to the leather honing wheel on the Tormex system. If you check their web site, it shows the wheels being used on a buffer, not a grinder. A grinder cuts into the metal to sharpen as observed above, but a honing wheel works by polishing the edge by spinning away from it—when you hone on a leather surface you pull the sharp edge away from the edge not push the edge into the leather surface. The Razor Sharp wheel needs to be turning away from the edge, not into the edge as the latter will cause the blade to catch/cut into the wheel and be thrown downward. Also, if you’re not clear on how to use the Razor Sharp Wheel, the web site has a telephone number and I strongly recommend you call and make sure you understand how to use the wheel as cutting into the wheel as it rotates towards the edge could result in a nasty accident.

-- John C. -- "Firearms are second only to the Constitution in importance; they are the peoples' liberty's teeth." George Washington

View shelly_b's profile

shelly_b

841 posts in 770 days


#6 posted 10-03-2012 06:46 PM

thank you, hillbillyshooter- that was what I was worried about since the edges are somewhat soft I didn’t want it to catch the edge. And since they are honing wheels and not grinding wheels, they really don’t throw much debris or sparks. I read the instructions but they were confusing. For knives and scissors it was clear that the wheel should not turn towards the cutting edge, but the instructions for woodworking tools were not very clear…I will see if the video can help clear it up. thanks! if anyone has these wheels

View Bill White's profile

Bill White

3447 posts in 2612 days


#7 posted 10-03-2012 08:03 PM

DO NOT POINT THE CHISEL UP!!!!
Point should be DOWN-handle up.
Look at some vids on the Tube or elsewhere.
I set the points up for sharpening, and down for honing.
If my comments are redundant, so be it.
Listen to ‘Trooper.
Bill

-- bill@magraphics.us

View HillbillyShooter's profile

HillbillyShooter

4565 posts in 944 days


#8 posted 10-03-2012 11:44 PM

See the following link for what I think Bill White is strongly recommending for safety reasons:

http://www.grizzly.com/catalog/2012/Main/220

Note the knife appears to be a lock back, so be careful not to place your fingers where any blade could close and cut—be careful and use common sense to avoid injury.

-- John C. -- "Firearms are second only to the Constitution in importance; they are the peoples' liberty's teeth." George Washington

View thedude50's profile

thedude50

3515 posts in 1130 days


#9 posted 10-04-2012 03:13 AM

if this is going on a grinder to get on the back side of it your going to have to remove the guards and such or so it seems to me

-- when I am not on Lumberjocks I am on @ http://thisoldworkshop.com where we allow free speech

View shelly_b's profile

shelly_b

841 posts in 770 days


#10 posted 10-04-2012 06:16 PM

It says that you donts need the gaurds so i can remove them so i dont uave to hold my tools upside down to sharpen them. Thanks for everyones help?!

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