Messages

Interesting- thanks for posting. And one can lower the grinding speed by grinding closer to the center.

Rick, I do a lot of scissors, but I haven't run into these before. Sorry : (

Vadim from KnifeGrinders.com.au is at it again - he is posting on YouTube a 10-video series, "Overheating in Sharpening". 7 videos are up so far.

Most telling is that Tormeks, with their water baths as coolant, do not even merit testing : )

Larrin Thomas, of knifesteelnerds.com fame (and has a CATRA sharpness tester in his garage!), wrote about steel softening from overheating: https://knifesteelnerds.com/2019/04/08/does-sharpening-with-a-grinder-ruin-your-edge/

(BTW, I highly recommend his book, Knife Engineering: Steel, Heat Treating, and Geometry)

I have ordered some honing coolant and look forward to trying it on my two Viel belt grinders (for repairs only; not for sharpening!)

Someone asked a few days ago how much to sharpen a knife. Yes, Tormeks are slower than a bench or belt grinder. With a Tormek, sell quality and value, not price. 

I will add that I also have a Kally 1x42 for repairing damaged edges.

Let me know what you think.
Don.

Don, instead of a Kally, first check out the Viel S5 with the variable frequency drive modification. Our own esteemed moderator, Ken S., was instrumental in seeing that project through, as was Steve Bottorff from Sharpening Made Easy dot com. There's a thread about it on the Bessex forum. I find being able to put the Viel down flat on a surface very useful.

As per KnifeGrinder's latest research, being able to slow down the belt is critical in ensuring the edge does not soften.

So for commercial sharpeners out there: try hitting up your local HVAC (Heating and Air Conditioning) contractors!

I used an iGaging AngleCube to set up the Tormek Tool Rest. I started with a #80 CBN, the switched to a #160 CBN, then deburred the edge using a diamond plate atop my reference granite flat surface. Of course, Tormek's diamond stones will have an even wider grinding surface!

Customer says he has about 80 blades needing sharpening. Replacement cost is $15 USD each.

The rig consist of two frontal vertical bases, two Tormek USBs, a Tormek MB-100 Multi Base, and a Tormek SVD-100 tool rest:

Customer asked if I can sharpen the double scissor blades on a Kett KD-400 power shear, used for cutting sheet metal for ventilation ducts.

The double shears consists of a curved center blade and a left and right blade. The curves makes sharpening the centre blade difficult. However, the left and right blades should be sharpenable.

The blades are A2 tool steel. The flat sides of Tormek diamond wheels, or some CBN wheels, are ideal for this job.

I'm impressed ... as always with your skill!

"New! Revised Guide Clip, 8 Year Warranty

The new Edition of the Tormek T-2 Pro Kitchen Knife Sharpener has a redesign guide clip that is lined so it won't mar knives, and it will accept larger knives than the original model too! Tormek has also given the T-2 an 8 year warranty, 5 years on purchase plus 3 years on registration.

The T2 can accommodate knives 14 - 60 mm (5/16" - 2-3/8") wide, and up to 3.5 mm (3/32") thick and it includes a removable magnet for capturing swarf. And now the guide clip is lined to prevent scratching knife blades!"

Not on Tormek's site yet, but the above description is here: https://www.sharpeningsupplies.com/Tormek-T2-Pro-Kitchen-Knife-Sharpener-P1937C309.aspx

It's in stock now for $190 USD at certain retailers, such as: https://www.sharpeningsupplies.com/Tormek-Rotating-Blade-Jig-P1936C309.aspx

According to his Deburring book, AUS-10 is "in-between:.

Hi Ken: It takes me over an hour, to sharpen a quality steel knife, for low Bess numbers. I have 2 tormek T8s, many leather honing wheels, 10" felt wheels for deburring, & high speed 10" paper wheel system, for deburring. To think you can sharpen quickly is wrong. It takes time to set up for grinding and time for FVB (honing & deburring). This process is not for making money. Hope this helps.

I have a similar setup, but for making money. I timed myself lastweek. Time varied from 7 minutes (previous customer; resharpen at same angle) to 9 minutes (very dull). I estimated 10 minutes per knife, so it seems about right. Getting BESS numbers 50-100.

I've got my TAS in a Tanos (Festool) M237 systainer. Am considering using a Festool CT SYS dust extractor, which can be fastened eithe above or below it...

Mike Brubacher, the inventor, recommends the PT50B for most users.