Wood for nut and bridge

standupright · #1 11-12-2009, 01:59 PM

Hello all. I've got some cocobolo that I'd like to use for a nut and floating bridge. Is this wood dense enough for this purpose?

Thanks!

T2W · #2 11-12-2009, 04:19 PM

yep.

simple answer for a simple question.

standupright · #3 11-12-2009, 07:25 PM

Quote:

Originally Posted by T2W

yep.

simple answer for a simple question.

thanks!

PasdaBeer · #4 11-13-2009, 01:43 AM

cmon, maple bridges are used in traditional double basses all the time, stuff is pretty soft compared to cocobolo : )

standupright · #5 11-13-2009, 01:49 AM

Quote:

Originally Posted by PasdaBeer

cmon, maple bridges are used in traditional double basses all the time, stuff is pretty soft compared to cocobolo : )

you sure about the softness comparison?

T2W · #6 11-13-2009, 06:17 AM

no he's not sure. Hard Maple is actually denser than cocobolo

Musiclogic · #7 11-13-2009, 06:44 AM

Hard maple has a specific gravity of .56 -.63

Cocobolo has a specific gravity of .91 - .96 cocobolo is slightly denser than hard maple

T2W · #8 11-13-2009, 06:55 AM

Janka scales all over rate Hard Maple at 1450, and cocobolo at 1160.

Musiclogic · #9 11-13-2009, 07:06 AM

Quote:

Originally Posted by T2W

no he's not sure. Hard Maple is actually denser than cocobolo

I was ellaborating on this quote..... Janka is a hardness scale, hardness and density are not one in the same.

You are quite correct though, Hard Maple is much higher on the Janka than Cocobolo.

T2W · #10 11-13-2009, 07:07 AM

ah ha. Can you please explain what the differences between density and hardness is? sorry Im french, I dont get it

Musiclogic · #11 11-13-2009, 07:13 AM

Specific Gravity is a density measure based on weight per centimeter/inch/foot/meter depending in either a multi atmosphere condition or a vaccuum. Janka Hardness is based on 100mm square penetration of a pressurized ball.

Density is mass, hardness is the ability to repel penetration, to put it simply.

See the Mohs or Rockwell scales and compare to Janka, and you will gain a greater understanding.

tdogg · #12 11-13-2009, 09:20 AM

Quote:

Originally Posted by T2W

sorry Im french, I dont get it

i think this just became my quote of the day.

Musiclogic · #13 11-13-2009, 11:23 AM

LMAO.....easy now....be nice

Musiclogic · #14 11-13-2009, 11:27 AM

To the OP, Standupright, If you get a chance, get over to the "BassPlace" talk to Lee Miller, he has a good amount of wood knowledge, he just doesn't let people know, plus he has an incredible amount of bass knowledge, and he's a really cool guy to talk with.

Also, get over to Woodworkers source on 40th st and University(if I remember correctly) in Tempe, great place to learn a lot about exotics, those guys there are great.

standupright · #15 11-13-2009, 11:55 AM

Quote:

Originally Posted by Musiclogic

To the OP, Standupright, If you get a chance, get over to the "BassPlace" talk to Lee Miller, he has a good amount of wood knowledge, he just doesn't let people know, plus he has an incredible amount of bass knowledge, and he's a really cool guy to talk with.

Also, get over to Woodworkers source on 40th st and University(if I remember correctly) in Tempe, great place to learn a lot about exotics, those guys there are great.

it's been YEARS since i've been to the Bass Place. i should go just for the helluvit. woodworker's source is a great place as well. i went there a couple of years ago when i was building a wine bar between my kitchen and dining room. crazy stock of exotics.

thanks!

Musiclogic · #16 11-13-2009, 12:20 PM

I still have a house up on Bell and 75th ave in the estates, even though I haven't lived there in quite some time(16 years), I still love PHX, and hope to retire there again someday....LOL Woodworkers Source(it's original name escapes me) was one of 3 places I hung out at a lot (when I wasn't at work at Intel on Black Canyon) the other were Bass Place when it was still in Glendale, and Golden 8 ball which used to be at 35th Ave and ISR across from Shooters world and Levitz furniture....LOL Long since days passed.

PasdaBeer · #17 11-13-2009, 12:58 PM

Quote:

Originally Posted by T2W

no he's not sure. Hard Maple is actually denser than cocobolo

this rude, coming from the french?

I was refering to density, thats why i said it is more dense then maple.

as someone else said
Hard maple has a specific gravity of .56 -.63

Cocobolo has a specific gravity of .91 - .96 cocobolo is slightly denser than hard maple

maybe You should be more sure before you say something like that? : )

T2W · #18 11-13-2009, 02:54 PM

Yea that was a bit harsh, im sorry Pasdabeer, if I could Id pass you a beer to apolagize.

PasdaBeer · #19 11-13-2009, 03:31 PM

fair nuff. I take back the french comment : )

standupright · #20 11-13-2009, 11:30 PM

so all of that being said. for the purpose of something like a bridge and nut, would janka rating be more fitting due to the type of test to provide the rating?