2021 Bow Swap Progress Thread - Complete

[Roy from Pa]

Big Red:)

[Mad Max]

Loblolly Pine.
this crotch will make some nice lams

Lams for a glass bow?

Just kidding
I don't thik it's good for anything anymore.

[Roy from Pa]

Sure Mark,  get us all excited about the crotch, then burn it...

[Mad Max]

Sure Mark,  get us all excited about the crotch, then burn it...

That's what I'm going to do, burn it

[Longcruise]

And some overlays , if I can find it ...

[attachment=1,msg2948538]

Did he volunteer some tip overlay material? 

[Longcruise]

The weather is killing me.   Not terrible cold but with no heat I'm only good for about 15 minutes.   Kinda excited about this first run at a RC.

[Roy from Pa]

Ya need a wood burner out there Mike.

[kennym]

He said it's free but don't know where he left it ... 

[mmattockx]

You gots yo'self some damn heavy maple then...  Last I looked maple was 44 lb. cu. ft....  And I can feel a drastic difference when I lift the two different woods...

The maple bow I posted was 53lb/cu.ft. I did a mollegabet style maple bow for my first and it was around that as well. I figured that was typical for hard maple....

If your maple is 44lb/cu.ft. then 57lb/cu.ft. would be a huge difference.


Mark

[Shredd]

I'm just getting my info off wood data base...  I never weighed it...  Are you saying that you weighed your wood and calculated the cu. ft weight???

Tree Size: 80-115 ft (25-35 m) tall,

                 2-3 ft (.6-1.0 m) trunk diameter

Average Dried Weight: 44.0 lbs/ft3 (705 kg/m3)

Specific Gravity (Basic, 12% MC): .56, .71

Janka Hardness: 1,450 lbf (6,450 N)

Modulus of Rupture: 15,800 lbf/in2(109.0 MPa)

Elastic Modulus: 1,830,000 lbf/in2(12.62 GPa)

Crushing Strength: 7,830 lbf/in2 (54.0 MPa)

Shrinkage: Radial: 4.8%, Tangential: 9.9%,

                  Volumetric: 14.7%, T/R Ratio: 1.9

[wood carver 2]

We're likely talking about extremes here. As it says in the stats, "average dried weight". A lot depends on the individual tree, where it grows, conditions, etc.
I've seen a sugar maple over 5' wide for at least 8' of trunk.
I have worked with a ton of black walnut. I don't know what it says in the book, but I have some that's hard and heavy and has a ring to it when you hit it and I have some that's light and soft as pine.
All the jatoba that I have worked with has been heavy and hard and very strong. I find that it can be splintery though.
Dave.

[mmattockx]

Are you saying that you weighed your wood and calculated the cu. ft weight???

Yeah, I weighed the board before I started cutting it up just out of curiosity. It's easy to calculate the volume of a rectangular prism and a kitchen scale handles that much weight with no issues.


Mark

[Roy from Pa]

So now you guys are weighing your wood?

Too much information...

[Shredd]

Are you saying that you weighed your wood and calculated the cu. ft weight???

Yeah, I weighed the board before I started cutting it up just out of curiosity. It's easy to calculate the volume of a rectangular prism and a kitchen scale handles that much weight with no issues.


Mark

   I know wood can vary but did not think it could vary that much... I thought 3 to 5 lbs. max...  Good to know...  Thanks...

[mmattockx]

   I know wood can vary but did not think it could vary that much... I thought 3 to 5 lbs. max...  Good to know...  Thanks...

That board is one hard, dense, stiff piece of maple. It worked like iron with hand tools and had a measured modulus of elasticity that was a good 30+% higher than the MOE numbers I have found in the databases in the software I use. I bought it at Home Depot, so who knows where it came from but it is one tough piece of lumber.


Mark

[Roy from Pa]

Got her cleaned up and ready to tiller, but I can't tiller her till I get my victim's info...

No pin knots showed up on this one:)

If I need something different I'll glue up another one.

[attachment=1]

[Bvas]

Looking good oltimer. Makes me wish I had gotten in the swap.
Just got too many other priorities.

[Crooked Stic]

Roy I figure you getting my name so 45@ 28 

[Roy from Pa]

Thanks guys.

Stickypops,  split finger or 3 under?

[Mad Max]

Looking good oltimer. Makes me wish I had gotten in the swap.
Just got too many other priorities.

You can still get in