Getting Started with the Edge-on-Up Sharpness Tester

[@vincents3334]

Wouldn’t the tension of the string make the readings vary?

[@SharpeningSupplies]

If you over-tension the string it could give you a lower readout. But you'd need to crank down on it to significantly throw off the readings. Some folks will use a clip-on 100-gram weight for consistent tension. I find pulling until it just becomes taut and holding it to the side of the aluminum test fixture with light pressure while I tighten the screw prevents over-tensioning and gives consistent results.

[@DN-kz7xl]

Can one use a kitchen electronic scale with the preloaded clips?

[@SharpeningSupplies]

That's certainly an option. I've even seen some jury-rigged setups that have their own test fixture and just use the test media. Using the Edge-on-Up system though has several advantages. For example, it will record on-screen the maximum weight during a test. The central portion under the Text Fixture is the only part that records weight, so you can safely and easily use the Knife Fulcrum. I've tried it on my kitchen scales using the test fixture with it and the Edge-on-Up is just a more convenient and nicer way to go about testing edges.

[@AhmadRiyal]

whats the test medium used?

[@SharpeningSupplies]

It's a BESS certified, 0.23mm (.009") diameter wire composed of humidity and temperature-resistant coated polymer plastics.

[@JoshxxLegg]

poo

[@ChauntelleARussell]

I didn't receive a test fixture or any paperwork besides the big cardboard welcome piece

[@SharpeningSupplies]

If you ordered it from us, get in touch with our customer service department and we'll sort that out for you. www.sharpeningsupplies.com/Customer-Service-W147.aspx

[@BeeSharp]

How would you go about testing a chisel since you cant use the fulcrum ?

[@SharpeningSupplies]

Hi Jimz, I'll try and post a short demonstrating how I do it.

[@BeeSharp]

@@SharpeningSupplies I appreciate it. This will push me over the edge into buying one.

[@xlr8436]

@@BeeSharp the fulcrum is just for ease of use with long blades. You don’t need to use it, it’s just handy. For chisels or short blades you just press down on the wire

[@BeeSharp]

@@xlr8436 thank you

[@Blaze_1961]

Why wouldn't I just buy the ATF20C Test Fixture for $45.00 and use my kitchen scale? I am not concerned about comparing to certified results just my own.

[@SharpeningSupplies]

That's certainly an option. I've even seen some jury-rigged setups that have their own test fixture and just use the test media. Using the Edge-on-Up system though has several advantages. For example, it will record on-screen the maximum weight during a test. The central portion under the Text Fixture is the only part that records weight, so you can safely and easily use the Knife Fulcrum. I just pulled out my kitchen scales and tried using the test fixture with it and the Edge-on-Up is just a more convenient and nicer way to go about testing edges.

[@Blaze_1961]

@@SharpeningSupplies Thank you for the reply and info.

[@SharpeningSupplies]

@@Blaze_1961 Happy to help!

[@danielbottner7700]

Are you using monofilament fishing line for test media ? If so which brand ? I am getting ready to do some razor blade testing to understand the conversion factor to Bess media. I can find no data on how the Bess media is tested for certification. Building a rig to limit variables . . . so far I am within +/-5%.

[@holymoly2330]

Dam 59 grams that's a sharp knife

[@louisholland3057]

When my kramer is 50-60 bess i can shave my leggs:) It cuts through the washing sponge

[@davidwhitee4670]

59 grams! Wow!

[@jcnone]

What a waste of OCD MONEY.