Australian Plane Irons? *LINK*

Re: Please explain theory & practice of "pecking"

Pam Niedermayer - Austin, TX

>Seems that if the upper surface is stretched, that would allow cupping in the opposite direction. That is, the interior surface of a concavity should be smaller than the exterior. Please tell me how I'm wrong.

Pam

We're talking apples and apples, Pam

Andrew F in Australia

>Hi Pam,

You've got it right. That's how it works.

Cheers,

Andrew

(Who's working 18 hour days at the moment and not exactly at his most lucid.)

Re: Ray Isles D2?

Andrew F in Australia

>Hi Paul,

I was asked my opinion of it a while ago.

This is the steel that they use in the paper mills to cut paper to size and trim the edges of the paper.

It's a 12%Cr (from memory) alloy that's loaded up with carbon, so it has large carbides which are brittle and sharpen with some difficulty. I thought that it would prove problematic in service, especially if it hit a knot or similar.

I thought that they'd sharpen, but with difficulty and require a fairly steep sharpening angle, but apparently the blades are working well.

Cheers,

Andrew

(proving once again that he's wrong on a regular basis)

...but an itchy trigger finger got me in trouble.

Andrew F in Australia

>I meant to also add:

Stretching the upper surface (as I said) makes the thing cup off the anvil further - I think that's what you were saying too, at least the way I read it.

However, I hit the post button too early

Oh well - off to work on a Sunny Thursday morning - approx 60F at 6:30am and a nice, mild 90F forecast for today.

CHeers,

Andrew

Re: Ray Isles D2?

David Charlesworth

>Personally I enjoy sharpening a bit less often.

I have both, as well as Holtey S (powder metallurgy)& E type.

I have not compared exhaustively, as Steve Elliott has done, just lacking the CPMV3 and a nice flat ground lump or two of cast iron........... but serious comparative tests are very arduous and time consuming, I do not have the kit,the time or the patience for any more of this kind of testing....

This seems to be a very emotive subject and many prefer to carry on the old ways of Arkansas and carbon steel.

Those who have the inclination will find Paul Williams' blades are superb.

David Charlesworth

Whew.

Pam Niedermayer - Austin, TX

>I was beginning to think the physical universe had changed without my having had a clue. It's only 80� here.

Pam

Re: Ray Isles D2? *LINK*

Brent

>I have tested the D2 blades from Gramercy - aka Toolsforworkingwood.

They do appear to sharpen well (using SiC and CrO), and are more durable than A2, not as durable as CPM 3V.

As Andrew F suggested, there may be some issues wiith larger carbides. In the photomicrographs, the edge looks a little bumpy at the end of the test - it is not wearing as evenly as other blades. However, this is probably not something you would be able to detect by feeling the wood. (I dont recall noticing any roughness).


Plane blade tests

Re: Perfect response!

paul womack

>

I haven't been.

Chuck Nickerson

>I emailed Craftsman Studio to see if these blades came in the correct thickness for my Gordon (Yes!). They mentioned the hardwood method. I'm now going to give it a try.

My plane (bought at a show)

Chuck Nickerson

>lacked the block and instructions.

Bummer.

Pam Niedermayer - Austin, TX

>

Cool, let us know how it works.

Pam Niedermayer - Austin, TX

>