Thread: Sharpening Get Together (GTG), March 13th, 2016

Originally Posted by FenceFurniture

Ok Ray, I'll be very very very specific - just for you.

1. I have two Irwin chisels, 3/4" and 1" which will be hollow ground on the day (they are currently flat bevel with a microbevel).
2. The backs of these chisels are already flat and polished
3. The two chisels will be mounted in whatever jig or not that the operators require
4. The waterstones and FAGCIBs & paste are packed away, waterstones are still dry, not presoaked, wet, damp, spat on, or indeed cried over.
5. THIS IS WHEN THE CLOCK STARTS!
6. Kit is unpacked and operators HONE the chisels in their normal regime
7. When they are satisfied that the edges are honed to user sharpness, they then pack away their respective kits, and clean up the work surface
8. THEN THE CLOCK STOPS!

Sharpness of edges is then compared by a 3rd party. They can choose whatever way they like to see how sharp the chisel is - finger feel the edge, shave their arm, pare some end grain, cut a notch - whatever. Maybe all 4.

So, still continuing to be quite specific, the criteria for judging the winner is how well the chisel is honed (therefore cuts) verses how long it took to hone it from start to finish (kit packed away to kit packed away).

I will be using pastes of 1200, 3000, 8000, 14000. Depending on the coarsness (or not) of the hollow grind I may start with a 400 diamond plate to establish the microbevel, and in that case I would assume that the waterstone operator would start with a similar grit. However, the WS operator can use whatever stones they want but going no finer than ~14k. I may finish with a 10k Shapton Pro, but the only real reason for this is to get a polish as the paste leaves a cloudy finish on steel - cosmetic only.

I really do hope that is clear and specific enough.

and people are calling me a hand cranker?

Answered privately

Dont worry folks. It's all fun and games.

The funniest part about the challenge is that you have to arrive with your gear packed and complete it by putting it away.

Maybe I should step up with the Aldi Diamond stone / plate thingy

Dave TTC
Turning Wood Into Art

Originally Posted by Pac man

The funniest part about the challenge is that you have to arrive with your gear packed and complete it by putting it away.

The funniest part is that so far there is no challenger.

Oh well you win. Back to the discussion.

Originally Posted by FenceFurniture

The funniest part is that so far there is no challenger.

if you don't mind me sleeping through most of the day, I'll take you on -- remotely of course

Originally Posted by FenceFurniture

Interesting. It did indeed make the leading edge sharper to touch, and reduced the fur on the rim of the hole and introduced that nice shearing sound as it cut. Could be worth pursuing.

hi Brett

what sort of countersink bit were you sharpening?

or or or

Originally Posted by ian

if you don't mind me sleeping through most of the day, I'll take you on -- remotely of course

A small problem in getting the chisel to you in time (they need to be the same steel - preferably from the same batch given the inconsistency of Chinese production), but perhaps you may have inspired someone.....

Originally Posted by ian

what sort of countersink bit were you sharpening?

No, but I have one of these (a Protool version) which is not blunt yet. These are pretty good and clean, but not fast. They are more of a deburring tool. Haven't used it much and must try it again.





Yes, and a damned useless bit of kit if ever there was one. Because it is so utterly useles I thought perhaps it was blunt from new and so gave it a spin in the paste. As I suspected it's just the shallowness of the flute near the point that makes it useless - it jams with dust within moments and doesn't clear itself. Absolute waste of money if anyone may be considering one (from Lee Valley). My usual procedure with it has been to use the biggest of another type and then take over with this one. Even then - just enlarging the existing C/S hole - it struggles very badly whether the drill hole is already there or not.





Yes, and this was the type I had the success with, along with another single flute one by Suttons which has always been a good countersink in all timbers. I have always been underwhelmed by the 5 flute jobbies as too often they leave a pentagonal C/S hole. However, in Spotted Gum yesterday they delivered a really nice hole (freehand) even before I tried honing them, so maybe they just chew up softwood. Will play today and report back. This was the one the delivered the shearing sound after honing and with markedly reduced fur around the rim. It also produced more of a shaving after honing, rather than more dust beforehand.




No, but looks like it would jam the dust pretty badly.


I've got another 2-3 different types as well which I'll take some pics of.

"Dont worry folks. It's all fun and games.

The funniest part about the challenge is that you have to arrive with your gear packed and complete it by putting it away."

Um, are we still talking about sharpening?

Alan...

Originally Posted by FenceFurniture

The funniest part is that so far there is no challenger.

As it is in the finest European Casinos, when a hi-roller runs out of challengers, the HOUSE steps in!
The HOUSE will therefore take up THIS challenge.

It's Fletty and shaptons VS FenceFurniture and FAGCIB ....... high noon!

Bring it on bucko!

Is anyone bringing a grinder with a CBN wheel?

Originally Posted by FenceFurniture

Bring it on bucko!

Is anyone bringing a grinder with a CBN wheel?

Yes . . .