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Interesting editorial.

http://bos.sagepub.com/content/71/1/33.full.pdf+html

Here are some more corrections. I've changed the designation D7 to #7 per David's information. I also bolded those values taken in the areas under the handles and done some formatting. I still...

Here's the calibration data. I'm having to move the instrument to use it so I recalibrate before each use.

305309305310

Okay, here's the data. These are first draft - I have not hand checked all of the input values. The corrections applied are as before, the first stage corrects for the offset of the instrument. ...

I received the two saw blades from David. Here they are.

The leftmost blade is slightly bent concave as pictured, the right blade is slightly convex as pictured. The etched sides of both blades...

Hi Stanley,

I agree with what you say about the classic handsaws. For me the first step in creating a handsaw is understanding the technical details of their manufacture. Sadly, much information...

I just noticed a calibration error, Excel likes to grab adjacent cells and it got ahold of a value I didn't specify. Corrected here.304781304782304783

The plate was directly and fully supported by the anvil. I used the 150 mm anvil that came with the tester. The free end of the blade was rested on a support to prevent deviations. The tester is...

The steel is hardened, or appears to be hardened, in the areas adjacent to the hammering.

I made an interesting observation during the testing. When running tests on the hammered zones the...

Here are the results of another experiment. I took a new piece of 1095 steel that will someday become a D-8 replica. I laid out a grid on it, hammered along the spine and a region starting about...

Here's a link to a story about the Argentine lignum vitae beer vat (10,000gal) I mentioned above. https://thedogsofbeer.wordpress.com/tag/palo-santo-wood/

Talk about esoterica...

Here's an anecdote you may find amusing. In my saw making work I often use Argentine lignum vitae or Verawood. It is really hard and difficult to work with, not as bad...

Good, glad to hear that we will have good test subjects.

On the issue of personal experience or common knowledge, if you will permit me I will discuss a example that everyone is familiar with.
...

At the moment I'm copying and thinking. Rome wasn't built in a day. Saws and more generally woodworking are interesting to me and they are areas where I am working to develop skills but they are...

The hard fact is that, as a researcher, you must be prepared to accept the results of carefully conducted experiments even if they do not fit your starting hypothesis or comport with your emotional...

I agree, I'll keep an eye out locally. Garage sale finds here can be very good.

Here is some guidance on surface roughness. This isn't copyright marked so I'll post it in it's entirety. ...

I'm okay with your proposal, would anybody else care to comment before we begin?

Check my post on the preceding page, I've added more suggestions.

David,

Sand the whole surface. I want to map them from tooth to back. A lot of work but I think the effort is worth it. I suggest using some wet-or dry and a thin hydrocarbon lubricant such as...

Hi Tony,

Fundamentally I just want to know. By testing across the saw plates we'll produce information to inform the debate we've been having here. Much more importantly we'll have a benchmark,...

I think sanding or lapping is preferable at this point to electrolysis, acid cleaning or other methods. Given that the plates may be taper ground we need to carefully select testing areas too.

Well, let the debate begin.

At first thought I would suggest that the plates be cleaned if not polished on both sides by an agreed method. This can be all or most of the surface or in patches. ...

It would be nice if we could. I've got a Beverly #3 shear that cuts saw plates like they're made of paper. I could cut up the blades and re-mail pieces to a number of different people to test.

That would work fine. I really do suggest that we try to find somebody to do some C scale testing in parallel with mine and if possible and appropriate based on plate thickness some N scale testing...

Here's a lot of Disston's for sale. A couple look pretty decent at first glance. ...