paper sharpening wheels - when your time is important to you

there is a difference between a motor and 3400 rpm buffer. i know the 1725 rpm 1/3 hp motor i had was not suited for running the wheels. i could stop the motor by grabbing the shaft with my hand.
 
Well I might just try the 1/3hp motor I have. It's rated at 6.6Amp and I tried to stop the motor when the pulley was on and I couldn't even slow it down. So I figure it should be plenty powerful enough to spin the paper wheel and allow a small amount of resistance when the knife is being sharpened.

Here is a popular slow speed bench grinder, and it's only rated at 1/3HP.
 
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A Chinese Ganzo 704 as i received it from Hong Kong:






A very nice knife for the money (i paid about 17 US dollars including shipping from Hong Kong to the Netherlands), but with quite an obtuse edge angle of about 35-40 (ish) degrees inclusive and also a bit blunt not a very good cutter.
On the blade it says 440C stainless steel, but it's more than likely it's Chinese cousin 9Cr13MoV.

Reprofiled with a standard Paper Wheel with silicon carbide grit to 30 degrees inclusive, refined it just a bit with a second Paper Wheel coated with 15 micron diamond compound, and finally removed the tiny burr with a third Paper Wheel coated with 1 micron diamond compound.
It cuts hair above the back of my hand and can slice single layer toilet paper.






 
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Just finished reading thru the 77 pages.... may have went a little overboard with the buffer, but it should last a lifetime....
got the Grizzly G1061Z The Buffing System - 1725 RPM
http://www.grizzly.com/products/The-Buffing-System-1725-RPM/G1061Z
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This thing is a beast!!!...have my paper wheels ordered anxiously awaiting them getting here. will post some results when they get here, after some practice!
Jay
 
it should last a lifetime if your has no defects and was made when they were having a good day :D.

a buddy of mine had one just like that but he used it on motorcycle parts. another buddy was using it to buff the blue off a pistol he bought and he slipped. it buffed off a nice 1" wide patch of skin. if you use it for anything else, be careful since there is no slowing down a 1 hp motor :D.
 
Yea I really wanted a baldor being usa made, but they are very pricey!!
yea shes got some torque! hopfully I don't buff too much arm skin ouch!
 
WOW!
That is a beast. Congratulations. You should have many successful sharpenings with this outfit.
 
So I finally got the wheels.....these are amazing!!!!

my arms are bare, I can't belive how great these work!! I sharpened every knife in the house and touched up my spyderco pm2 back to a razor edge, sharper than it came brand new!!!
 
jayjaytuner said:
So I finally got the wheels.....these are amazing!!!!

my arms are bare, I can't belive how great these work!! I sharpened every knife in the house and touched up my spyderco pm2 back to a razor edge, sharper than it came brand new!!!
Click to expand...
did you come across the hairy arm guy story i posted here in my wheel thread? (or should i post it again?). i was at a fundraiser sharpening knives and i sharpened a knife for a (really drunk) guy that had an excess of hair all over including his arms.

i touched up my spyderco manix 2 even though it was sharp from the factory. all it took was a couple passes on the slotted wheel. remember that is not necessary to work up a burr all the time to sharpen a knife. sometimes if they are not bad you can buff an edge back to shaving sharp just like you would do a serrated edge.
 
haha, yea I read thru that post, actually this whole thread.

for whatever reason I find the longer kitchen knives a bit easier to sharpen, altho it could be they have a softer steel.
I gotta clean up a bunch of sliced paper before the wife gets home...
 
Was considering trying this out when time comes to regret the wheel, anyone have any feedback....

http://www.formaxmfg.com/glues
FLEX-A-GLU POLISHING WHEEL CEMENT™
A ready-to-use, water-soluble, synthetic adhesive for setting up polishing wheels and bobs made of cloth, canvas, felt, leather or wood. Apply by brushing on thin coats and rolling the wheel in a pan of loose abrasive grain. Multiple coats are recommended to build up long lasting abrasive head thickness. Allow coating to air dry. Drying time may be reduced by using a heat lamp or oven heat. May be thinned with water if a "sizing coat" is desired on new wheels.

Polishing wheels, bobs and belts coated with this cement will produce more work and last from two to six times as long as wheels set up with animal hide glue. The frictional heat created during polishing wheel operations softens animal hide glue coatings allowing the abrasive grain to be torn loose from the wheel face before it has performed to its utmost efficiency. This frictional heat does not soften the cement bond. The abrasive grain is firmly anchored to the surface permitting it to cut and break down in size until completely consumed.
 
i'm going to call them tomorrow and see what they say just to make sure it will be safe to use. as far as what i have read, i think it would work but i'm wondering how much a gallon can is going to cost. i bet it is going to be real expensive.

i have a cotton buffing wheel that came coated in the poly glue and rolled in 280 grit. one day i was using it and a small chunk came off. it hit me but it was not big enough to hurt but a big chunk might not feel good at 3400 rpm. i'm glad i run a 1725 rpm motor.
 
a gallon might be a waste to get since a wheel only takes a little bit of glue and grit to recover a wheel. i wonder if they would sell smaller ammounts since a gallon might go bad before it can all be used up.
 
i talked to a salesman. he is sending me a sample to try. i want to make sure that this stuff is going to be just as safe as elmers glue and not come off since it is being put on a different material.

the salesman is also sending me (if he has some mixed up) the same glue but with 120 grit mixed in.

when i get my 10" x 1" wheels coated, i'm going to set up my high speed buffer to run at max speed (5.000+ rpm) and see what happens :D. if none of it flys off at that speed i guess it will hold up at a lower rpm easily.
 
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