Acquiring/making large pieces of wood

454Casull · 6th October 2009, 06:02 PM

I have in mind a large block of wood to use as the base in a dipole system. What's the best way to get one? I have some ideas but I don't want to unduly influence your opinions. I do want a high density/mass.

Dimensions should be approximately 20"x12"x4" (LWH), two pieces.

Glowbug · 6th October 2009, 06:31 PM

Stacked MDF/HDF?

Conrad Hoffman · 6th October 2009, 06:36 PM

Large blocks of wood are subject to cracking. Definitely glue it up. If you use MDF it will certainly be heavy! You could also glue up a couple pieces of 2" butcher block, if you can find a reasonably priced source. I'd go with MDF and maybe some veneer, or body filler and a piano finish if that's more your style.

Cal Weldon · 6th October 2009, 10:14 PM

Bamboo cutting boards stacked 6 or 8 high.

mightym · 6th October 2009, 10:48 PM

Not knowing the tooling you have available, a judiciously selected 2" x 6"-14' board could be ripped to 4", and crosscut to 20", and then glued face to face for 8 layers to achieve the desired dimensions. alternating white wood with something like Douglas fir would give you a little contrast in the layers.

dangus · 6th October 2009, 11:05 PM

Firewood? Maple trees grow like weeds around here, and I've seen ads for oak firewood too.

aquapiranha · 6th October 2009, 11:06 PM

Here we are able to buy sleepers used on the railway. Pretty big, big enough?

http://www.uksleepers.co.uk/product-...FYNu4wodVCGnlA

MJL21193 · 7th October 2009, 01:26 AM

Quote:

Originally Posted by aquapiranha

Here we are able to buy sleepers used on the railway. Pretty big, big enough?

Creosote treated? Not a good smell in the family room

Quote:

Originally Posted by 454Casull

I have in mind a large block of wood to use as the base in a dipole system. What's the best way to get one? I have some ideas but I don't want to unduly influence your opinions. I do want a high density/mass.

Dimensions should be approximately 20"x12"x4" (LWH), two pieces.

I would build a box with mitered corners (or veneer it) and fill it with some heavy ballast - sand, pebbles, lead shot, whatever.

Ed LaFontaine · 7th October 2009, 03:03 AM

Build a box with the dimensions you describe. Decorate or trim as desired.

Buy 2-80 pound bags of sackrete (concrete in a sack)

Mix with water

Place in form

Remove from form

Do it again

Each "base" will weigh ~75 pounds

mwmkravchenko · 7th October 2009, 03:11 AM

Hard to argue with Mongo!

He makes sense

Mark

6th October 2009, 06:02 PM	#1
454Casull diyAudio Member Join Date: Jan 2004 Location: Toronto, ON, Canada	Acquiring/making large pieces of wood I have in mind a large block of wood to use as the base in a dipole system. What's the best way to get one? I have some ideas but I don't want to unduly influence your opinions. I do want a high density/mass. Dimensions should be approximately 20"x12"x4" (LWH), two pieces. __________________ Building a 2.1 system out of a 3/4"x4'x8' sheet

6th October 2009, 06:31 PM	#2
Glowbug diyAudio Member Join Date: Feb 2006 Location: Hillsborough, NC/McLean, VA	Stacked MDF/HDF? __________________ Jim J.

6th October 2009, 06:36 PM	#3
Conrad Hoffman diyAudio Member Join Date: Mar 2007 Location: Canandaigua, NY USA	Large blocks of wood are subject to cracking. Definitely glue it up. If you use MDF it will certainly be heavy! You could also glue up a couple pieces of 2" butcher block, if you can find a reasonably priced source. I'd go with MDF and maybe some veneer, or body filler and a piano finish if that's more your style. __________________ I used to be an audiophool like you but then I took an arrow to the knee.

6th October 2009, 10:14 PM	#4
Cal Weldon Speakerholic diyAudio Moderator Join Date: Jan 2004 Location: British Columbia	Bamboo cutting boards stacked 6 or 8 high. __________________ Next stop: Margaritaville Some of Cal's stuff \| Cal Weldon Consulting

7th October 2009, 03:03 AM	#9
Ed LaFontaine ...truth seeker... diyAudio Member Join Date: Feb 2004 Location: where the Appalachians rise from the Blue Grass	Unless it has to be wood... Build a box with the dimensions you describe. Decorate or trim as desired. Buy 2-80 pound bags of sackrete (concrete in a sack) Mix with water Place in form Remove from form Do it again Each "base" will weigh ~75 pounds __________________ ...call me Ed...Special Ed... http://www.diyaudio.com/forums/swap-meet/119852-enabl-kit.html http://www.diyaudio.com/forums/swap-...ml#post2361098


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6th October 2009, 10:48 PM	#5
mightym diyAudio Member Join Date: Feb 2008 Location: Checotah, Okrahoma former home of the Okra Fest	Not knowing the tooling you have available, a judiciously selected 2" x 6"-14' board could be ripped to 4", and crosscut to 20", and then glued face to face for 8 layers to achieve the desired dimensions. alternating white wood with something like Douglas fir would give you a little contrast in the layers.

6th October 2009, 11:05 PM	#6
dangus diyAudio Member Join Date: May 2004 Location: Vancouver Island	Firewood? Maple trees grow like weeds around here, and I've seen ads for oak firewood too.

6th October 2009, 11:06 PM	#7
aquapiranha diyAudio Member Join Date: Jul 2007	Here we are able to buy sleepers used on the railway. Pretty big, big enough? http://www.uksleepers.co.uk/product-...FYNu4wodVCGnlA

7th October 2009, 03:11 AM	#10
mwmkravchenko diyAudio Member Join Date: Jan 2002 Location: Perth Canada	Hard to argue with Mongo! He makes sense Mark __________________ Mark

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