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Old 9th October 2012, 10:54 PM   #31
puppet is offline puppet  United States
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Qtr'ed White Oak is one of my all time favorites.
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Old 10th October 2012, 01:26 AM   #32
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These are a couple of baffles I have been making for a little project of mine.

They are made from to 2x4 recycled kauri off cuts. The have been glued together side by side then thicknessed and profiled with a router jig.

Working with real wood is so much nicer than ply/mdf/chipboard!

I will be laminating kauri with ply for the sides and back, the bracing will be ply.
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Old 10th October 2012, 09:38 AM   #33
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Something to bear in mind when working with certain hard woods like mahogany, beech, walnut ash and in particular oak is that the dust is carcinogenic or even poisonous.

It is not just when working with MDF that a dust mask is essential!!!
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Old 10th October 2012, 12:28 PM   #34
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...(my dad was an amateur luthier. More accurately, he made all the furniture, windows, turntables, guitars, TVRs blah blah.
At age 5 i was his assistant sander.
We live in the UK nanny state. I thought it was only I that stated the obvious. Thanks for the constructive advice guys and nice baffles Jacob.
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Old 10th October 2012, 01:47 PM   #35
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I knew for a long time that oak dust is poisonous, that's why oak last so long.
My grandfather was a cabinet maker in Germany. He died fairly young of cancer.
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Old 10th October 2012, 04:16 PM   #36
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Oaks toxicity rings a bell, for some reason that makes me think its woodworm proof. Either way, im athsmatic and allergic, work in hazardous environs, so a mask and glasses are a way of life. My grandfather died of asbestosis, and my father was close to dying of TB, so my respiration is protected at all times!
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Old 11th October 2012, 02:00 PM   #37
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Quote:
Originally Posted by Charles Darwin View Post
I knew for a long time that oak dust is poisonous, that's why oak last so long.
I didn't think oak dust is any more toxic than any other kind of wood dust. Around here walnut and locust are the two most toxic woods. My understanding is that white oak is fairly rot resistant due to it's tight end grain structure. Red oak isn't very rot resistant...

I've made several walnut speaker cabinets. I don't think there is problem using real wood as long as you are smart about it....
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Old 11th October 2012, 02:11 PM   #38
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Originally Posted by Josephjcole View Post
I didn't think oak dust is any more toxic than any other kind of wood dust. Around here walnut and locust are the two most toxic woods. My understanding is that white oak is fairly rot resistant due to it's tight end grain structure. Red oak isn't very rot resistant...

I've made several walnut speaker cabinets. I don't think there is problem using real wood as long as you are smart about it....
Red oak actually has open pores where white oak has closed / plugged pores which may be why the difference in rot resistance.

Walnut is great wood but some people are sensitive to it. No matter what the lumber choice good dust collection, ambient air filtration and the addition of a p95 respirator are all wise choices. Worst case, put on a respirator and put a fan in the window with some makeup air preferably on the opposite side of the shop and you will be fine.
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Old 11th October 2012, 02:37 PM   #39
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A bit of googling showed that very many hardwoods are toxic or irritants.
However the this varies not just by genus but also by where the tree grew.
For example Teak (Tectona Grandis) grown in SE Asia is quite irritant while the same species grown in South Africa has a very much lower level of irritants.

Legally in the UK wood dust exposure is limited to <5mg/m^3 for 8 hours per day.
I guess one would have to be a very committed diy-er to exceed this.
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Old 11th October 2012, 02:45 PM   #40
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White Oak has a fungus "companion" that effectively fills its pores. The fungus does indeed aid in the woods rot resistance. Old colonial days ... white oak was used as roof shingles. George Washingtons Mount Vernon buildings still have them in place.

Red Oak doesn't share this feature. Look at end grain samples of both species and the difference is readily apparent.
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