Morning All,

I have a brand new Paper Wheel set up now, but having never seen one LIVE, I am thinking there must be tricks to getting them running true, better than what I have. If videos would be helpful, I could post them, to see what I have....

I have a 3/4 Hp dual ended Buffer variable speed.
Main Shaft is 20mm, with 5/8" dia for mounting 10" wheels.
I have flattened the wheels as best I can by clamping for a few days
I replaced the cheap pressed washers with 0.375" thk steel washers, lazer cut.
I block sanded the out diameter of the paper wheels to try to true the ODs

The result works, but I did expect better results....the knife blades still "bump" along while honing.....I wasn't expecting a super balanced result, but I did think it would be better!

Any suggestions?

Sam

   

Many people here are doing sharpening with belt grinder. Do you sharpen scandi knife with a belt grinder?

I think using a belt will force the bevel to become convex. Somebody wouldn't like it.

Question to those that have experience.....

If I get a knife tested ( at the thickest part of the blade) does the included angle of the blade, even though it is very small, give results different than those of heat treated flat stock?

Thanks all,

Sam

Just finished up my Paper Wheel Set Up. Using my PT50B, and My KingMas 60x illuminated Loupe, I see both a marked difference in my edges, and a good 80 points better sharpness scores......but I am not sure if my apex is clean.....

I have seen talk all over the place on USB microscopes, and if something is inexpensive enough, I would like to look at higher magnification than 60x.  The big drawback on the Loupe for me is constantly taking off my glasses to use it......and I would also like to save images for comparison.

if you are happy with something you have bought, I would love to get info.

Thank you guys!

Sam

I think it would have better results if it had been finished with stropping.

Hi Guys,

Mark R put me in touch with IVO Cutlery out of Portugal.  They have a NA Headquarters not too far from me, and I met them yesterday....I also picked up some knives for trials! ( Thank you so much Mark......you are awesome!)

One is X50CRMOV15

the other is X55CRMOV14

So the 2nd is slightly higher in carbon and lower in Vanadium.....

I cant find specs on its hardness.......any insight from forum members???

Thanks

Sam

    Just bored this morning....so for fun, I ran some simple FEA on a knife blade section.

Standard width kitchen knife
Material: 1045 steel.....just because I had full properties
20 deg bevel
0.00005 in apex radius

Load over 1 inch......5lbf total

File attached.....

A few days ago, I sharpened a ceramic knife and failed. 

I tried it with Tormek & CBN wheels(400 & 1000 grit) then honing it with leather belt loaded with PA-70(Tormek honing compound, Aluminum oxide).

But I got 300 BESS. 

What did I do wrong?

Thanks to Subwoofer for putting this together. Another great edge sharpness contest in the UK.

1. Open to all knives, custom-made or production. – No Razors allowed.
   
2. Kitchen knives, though allowed, are NOT eligible to be overall winner; they have been found to have too much of an advantage, so may be entered for an honourable mention only.
   
3. Any knife deemed not to be in the spirit of the ‘sharpest knife’ contest will be disallowed (surgical/laboratory etc.).
   
4. Open to anyone – Professional / Maker / Amateur / User.
   
5. Knives must be submitted either folded or sheathed, with the cutting edge covered.
   
6. Each knife will initially have a single measurement taken. If the result is within 50 BESS of the leading entry, further measurements may be taken (at the discretion of the tester).
   
7. Subject to the previous rule, each qualifying knife will then have a set of three measurements taken along the blade (centre, heel and tip) with the average BESS score counting as the result.
   
8. In the case of a draw, the lowest individual score will be used for secondary ranking. If there is still a draw, the first one tested will win.
   
9. The tester’s results are final – No knife may be entered twice.
   

EOU edge sharpness testing instrument users who utilize our instrumentation in their business continue to recognize the 
marketing value of a BESS Partnership. The membership is free to most small sharpeners and includes a certificate and 
membership ID number.

Please welcome Regent Sharpening as one of our latest BESS Partner members!