## RE: [MedievalSawdust] could you would you

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• Hello all, This is my first post here and hopefully I won t offend the more medievally minded of you by being a geek on my first post. From Marks Standard
Message 1 of 23 , May 5, 2005
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Hello all,
This is my first post here and hopefully I won't offend the more medievally minded of you by being a geek on my first post.

From Marks Standard Handbook for Mechanical Engineers, Chapter 6, Table 6.7.2 Strengths and related properties of Wood...

Wood ; Modulus of Rupture (lbs/in^2) ; Modulus of Elasticity (ksi)
Red Oak ; 14,300 ; 1,800
Poplar, yellow ; 10,100 ; 1,580
Pine, Eastern White ; 8,600 ; 1,240
Ceder, Western Red ; 7,500 ; 1,110

Therefore: if there are no extra legs or changes to structure and the boards are all equivilent in size we can expect the Poplar fauld stool to support 70% of the load caried by the red oak before similar failure and have 115% of the flex. Obviously the legs will flex farther, changing the moment arms, affecting the loading and throwing the math all to hell. Western red cedar would be about 55% of load.

To thicken the poplar for equivilent strength it is necessary to determine loading type, which is mostly bending and subject to the formula Stress = M*c/I where c = half the board thickness and I = width*height^3/12. A finished thickness of 7/8" is almost sufficient and a finished thickness of 1" is plenty.

Thanks for giving me an excuse to be an engineer. :)

Sean

-------------- Original message --------------
Interesting that you want to try this in poplar. I have been thinking on the same subject but I have the luxury of planing my rough cut stock to size.  With that capability in mind what would be a good thickness of poplar to do a faldstool in?

Oh by the way: Hi everybody! I am new here and only so-so skilled with wood but very interested in medieval furniture and techniques.

Jamie Blackrose
-----Original Message-----
From: medievalsawdust@yahoogroups.com [mailto:medievalsawdust@yahoogroups.com]On Behalf Of Conal O'hAirt Jim Hart
Sent: Wednesday, May 04, 2005 6:43 PM
To: sawdust
Subject: [MedievalSawdust] could you would you

I can't decide, but I know I have
a tendency to over build...

Could this be built from 3/4 poplar
stock without compromising the strength?

I've made one from red oak and these two
from white oak.... I just can't convince
myself one way or the other about trying
one in poplar...

Opinions?

Baron Conal O'hAirt / Jim Hart

Aude Aliquid Dignum
' Dare Something Worthy '

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• HEY Jamie... welcome aboard - Chas. Interesting that you want to try this in poplar. I have been thinking on the same subject but I have the luxury of planing
Message 2 of 23 , May 5, 2005
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HEY Jamie...  welcome aboard -
Chas.

Interesting that you want to try this in poplar. I have been thinking on the same subject but I have the luxury of planing my rough cut stock to size.  With that capability in mind what would be a good thickness of poplar to do a faldstool in?

Oh by the way: Hi everybody! I am new here and only so-so skilled with wood but very interested in medieval furniture and techniques.

Jamie Blackrose
• ... What about Tulip popular, which I understand to be the standard popular that us in the mid-Atlantic get. Siegfried --
Message 3 of 23 , May 5, 2005
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> Wood ; Modulus of Rupture (lbs/in^2) ; Modulus of Elasticity (ksi)
> Red Oak ; 14,300 ; 1,800
> Poplar, yellow ; 10,100 ; 1,580
> Pine, Eastern White ; 8,600 ; 1,240
> Ceder, Western Red ; 7,500 ; 1,110

What about Tulip popular, which I understand to be the standard
popular that us in the mid-Atlantic get.

Siegfried

--
___________________________________________________________________________
THL Siegfried Sebastian Faust http://crossbows.biz/
Barony of Highland Foorde Baronial Web Minister & Archery Marshal
Kingdom of Atlantia Deputy Kingdom Earl Marshal for Target Archery
http://highland-foorde.atlantia.sca.org/ http://archery.atlantia.sca.org/
• ... I m afraid it s my fault, I told him about this Ralg AnTir _
Message 4 of 23 , May 5, 2005
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--- In medievalsawdust@yahoogroups.com, "Schuster, Robert L."
<SchusterRL@u...> wrote:
> Damn Calontiri!
>
> Halv
>

Ralg
AnTir
_
• Halvgrim just can t get away from me. :) Avraham
Message 5 of 23 , May 5, 2005
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Halvgrim just can't get away from me. :)
Avraham

>--- In medievalsawdust@yahoogroups.com, "Schuster, Robert L."
><SchusterRL@u...> wrote:
> > Damn Calontiri!
> >
> > Halv
> >
>
>Ralg
>AnTir
• LOL, thought that was you, but I wasn t sure ;) Aiden ... From: Avraham Sent: May 5, 2005 8:34 AM To: medievalsawdust@yahoogroups.com
Message 6 of 23 , May 5, 2005
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LOL, thought that was you, but I wasn't sure ;)

Aiden

-----Original Message-----
From: Avraham <avraham@...>
Sent: May 5, 2005 8:34 AM
To: medievalsawdust@yahoogroups.com
Subject: Re: [MedievalSawdust] could you would you

<html><body>

<tt>
Hey, Aiden, fancy seeing you here.<BR>
Avraham<BR>
<BR>
>Is western Red Cedar softer and weaker than Poplar?<BR>
><BR>
>Aiden<BR>
><BR>
><BR>
><BR>
><BR>
><BR>
><BR>
><BR>
<BR>
</tt>

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• ... For those people who read this group in digest mode, all attachments are stripped off. -- Steve Mercer mercer@winternet.com
Message 7 of 23 , May 5, 2005
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>You "should" have gotten a picture attached - I didn't see it right
>away, but scrolling down showed it. If you didn't get it, or if you're
>reading off the web, let me know and I'll forward the picture to you.

For those people who read this group in digest mode, all attachments
are stripped off.

--
Steve Mercer
mercer@...
• ... see attachment... Baron Conal O hAirt / Jim Hart Aude Aliquid Dignum Dare Something Worthy __________________________________ Do you Yahoo!? Yahoo!
Message 8 of 23 , May 5, 2005
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--- Avraham <avraham@...> wrote:
> Um, make what?
> Avraham
> new to the group, not so much to woodworking
>

see attachment...

Baron Conal O'hAirt / Jim Hart

Aude Aliquid Dignum
' Dare Something Worthy '

__________________________________
Do you Yahoo!?
Yahoo! Small Business - Try our new resources site!
• ... I was looking for something to do with the scrap/off-fall shorts that I had collected and had just finshed the two in white oak. So the foldstol was near
Message 9 of 23 , May 5, 2005
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--- Joseph Paul <josephnjody@...> wrote:
> Interesting that you want to try this in poplar. I
> have been thinking on the
> same subject but I have the luxury of planing my
> rough cut stock to size.
> With that capability in mind what would be a good
> thickness of poplar to do
> a faldstool in?

I was looking for something to do with the
scrap/off-fall shorts that I had collected
and had just finshed the two in white oak.
So the foldstol was near the top of my list
of things I'm thinking aboput right now. I've
got a few randon lenghts and widths that could
easlily be cut down to the 1 1/2" stock I used
for the whitew oak stools....

Unless someone has another idea....

So here's another question for the group.

What do you do with 'scraps' that are
too big to throw away, but not big enough
for most projects?

( one can only wear so many pairs of
pattens.... )

Baron Conal O'hAirt / Jim Hart

Aude Aliquid Dignum
' Dare Something Worthy '

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• But it is a rather small world, after all. Particularly so when you have a subset like this. Charles Joiner Who can still remember most of Song of the Shield
Message 10 of 23 , May 5, 2005
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But it is a rather small world, after all.  Particularly so when you have a subset like this.

Charles Joiner
Who can still remember most of "Song of the Shield Wall"...
-----Original Message-----
From: medievalsawdust@yahoogroups.com [mailto:medievalsawdust@yahoogroups.com]On Behalf Of Avraham
Sent: Thursday, May 05, 2005 11:35 AM
To: medievalsawdust@yahoogroups.com
Subject: Re: [MedievalSawdust] Re: could you would you

Halvgrim just can't get away from me. :)
Avraham

>--- In medievalsawdust@yahoogroups.com, "Schuster, Robert L."
><SchusterRL@u...> wrote:
> > Damn Calontiri!
> >
> > Halv
> >
>
>Ralg
>AnTir

<*> To visit your group on the web, go to:
http://groups.yahoo.com/group/medievalsawdust/

• Actually Yahoo does strip the attachments. I only read these messages on the Yahoo group site and there s no picture or brief description of what you re
Message 11 of 23 , May 6, 2005
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Actually Yahoo does strip the attachments. I only read these
messages on the Yahoo group site and there's no picture or brief
description of what you're talking about.

Now for this particular question, I probably don't care. If anyone
joined the group today or later and read the post on the board, they
would not ever have any idea of what is being discussed.

My guess is that you're trying to build an ark, the Noah's type, not
the covenant type. I think that poplar would be OK because it only
needs to hold up for a couple of months, but you're going to need
alot of lumber... ;)

Eric

--- In medievalsawdust@yahoogroups.com, Avraham <avraham@e...> wrote:
> Wolf,
> Ah - down *below* all the yahoo ad stuff. I've never been on a
list that
> wasn't set to strip attachments before, now I know. Thanks!
>
>
> >Avraham;
> >
> >You "should" have gotten a picture attached - I didn't see it right
> >away, but scrolling down showed it. If you didn't get it, or if
you're
> > >
> > > Um, make what?
> > > Avraham
> > > new to the group, not so much to woodworking
> > >
> > > >I can't decide, but I know I have
> > > >a tendency to over build...
> > > >
> > > >Could this be built from 3/4 poplar
> > > >stock without compromising the strength?
> > > >
> > > >I've made one from red oak and these two
> > > >from white oak.... I just can't convince
> > > >myself one way or the other about trying
> > > >one in poplar...
> > > >
> > > >Opinions?
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >Baron Conal O'hAirt / Jim Hart
> > > >
> > > > Aude Aliquid Dignum
> > > > ' Dare Something Worthy '
• ... Someone has another idea And That someone is me. LOL Everyweek here in sternfeld we have a meeting called Stuff and nonsence .Held at Master JP Devereaux
Message 12 of 23 , May 10, 2005
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--- In medievalsawdust@yahoogroups.com, Conal O'hAirt Jim Hart
<baronconal@y...> wrote:
> Unless someone has another idea....
> So here's another question for the group.
> What do you do with 'scraps' that are
> too big to throw away, but not big enough
> for most projects?
>
> ( one can only wear so many pairs of
> pattens.... )
> Baron Conal O'hAirt / Jim Hart

Someone has another idea
And That someone is me. LOL
Everyweek here in sternfeld we have a meeting called"Stuff and
nonsence".Held at Master JP Devereaux and Mistress Baroness Priscilla
the Hun's home. We try to help others in the barony with what ever
projects they are working on. What I and Master Devereaux do with are
scraps is to bring them out and see if anyone needs them. But You now
have given me a idea . Thank you Baron Conal. One can only wear so
many pairs of pattens.But a barony can wear many. A group project that
we are working on this would be a great addition too.
IYS
Lord Alessandro dEste
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