Looking for feedback on wood hardness chart

judaspre1982 · Post by **judaspre1982** » Sat Oct 15, 2011 9:28 pm

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beeg · Post by **beeg** » Sat Oct 15, 2011 9:34 pm

[quote="JPG40504"]Do you know where I can get a magnifying glass? - At least it all fits!]

Just increase the size to 200%, then ya might be able to read it.

mikelst · Post by **mikelst** » Sat Oct 15, 2011 9:47 pm

As I understand it you are asking for feedback on your chart and its usability.

With that as my goal...

I love the idea and it is obvious a lot of thought and effort went into the chart. There is a HUGE amount of great data here but...

My old eyes cant read it. It would be a much better effort for me (I know you made it for you not me:D) if it were in a larger font even if it ended up spread over a couple of pages. Or the front and back of one page that could then be laminated and hung on the wall above or even attached to the tool where I expected to make the most use of it.

Just my thoughts, you did ask:o

JPG · Post by **JPG** » Sat Oct 15, 2011 10:08 pm

mikelst wrote:As I understand it you are asking for feedback on your chart and its usability.

With that as my goal...

I love the idea and it is obvious a lot of thought and effort went into the chart. There is a HUGE amount of great data here but...

My old eyes cant read it. It would be a much better effort for me (I know you made it for you not me:D) if it were in a larger font even if it ended up spread over a couple of pages. Or the front and back of one page that could then be laminated and hung on the wall above or even attached to the tool where I expected to make the most use of it.

Just my thoughts, you did ask:o

Print it out greater than 100% size.

gpmark · Post by **gpmark** » Sat Oct 15, 2011 10:23 pm

Still a work in progress so I will take your ideas and continue. It's now cleaned up and just a tad larger.

The second half is specifically for the ProPlanner upgrade is a speed/feed chart.

You can find the pdf here => http://beasleymhb.home.comcast.net/~beasleymhb/wood hardness and speed_feed.pdf

PS - Understand this is meant to be a quick reference only. Also I removed th s off of http so you shouldn't see the security certificate error.

charlese · Post by **charlese** » Sat Oct 15, 2011 10:38 pm

After bypassing my security (computer claimed the site had a certificate error) I was able to view the site.

Lot of work here and that is to be admired!:) It is a large compilation and gives a good general idea of hardness of many species.

However, given the numbers, I was unable to tell if hardness is expressed in pounds/sq inch or other. Also, I would want to know if the chart addresses wood of what moisture content, is it speaking of compression hardness, shearing hardness, and is this table a combination of the above.

Does the table address hardness perpendicular to grain or other. Most tools cut into wood at a shearing angle. It's pretty hard to cut perpendicular to the grain. I believe most woodworkers don't really care about how many pounds of pressure or strike will crush wood. I think they just care about is one species generally harder than another.

If all one wants a table of how easily a ball pien hammer will leave a dent in a dried wood board, then we don't need a table with pounds - all we need is the colors.

If we desire more precise information, then Chapter 5 (Mechanical Properties of Wood) in the "Wood Handbook" will give those precise numbers. http://www.fpl.fs.fed.us/documnts/fplgtr/fplgtr190/chapter_05.pdf

judaspre1982 · Post by **judaspre1982** » Sun Oct 16, 2011 12:10 pm

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mikelst · Post by **mikelst** » Mon Oct 17, 2011 2:44 pm

JPG40504 wrote:Print it out greater than 100% size.

Then id does not fit on a 'page' or single sheet of paper so formatting is lost.

If it were available as a spread sheet self formatting and alignment would be possible.

JPG · Post by **JPG** » Mon Oct 17, 2011 4:58 pm

Try these!

[ATTACH]14510[/ATTACH] Speed chart added after initial post!

[ATTACH]14504[/ATTACH]

[ATTACH]14505[/ATTACH]

[ATTACH]14506[/ATTACH]

JPG · Post by **JPG** » Mon Oct 17, 2011 5:02 pm

JPG40504 wrote:Try these!

[ATTACH]14504[/ATTACH]

[ATTACH]14505[/ATTACH]

[ATTACH]14506[/ATTACH]

And these:
[ATTACH]14507[/ATTACH]

[ATTACH]14508[/ATTACH]

[ATTACH]14509[/ATTACH]

Each section is a jpg file. Right click and copy!

Shopsmith Forums

Looking for feedback on wood hardness chart

Thanks for the input - here's the second part