Article View: sci.bio.botany
Article #130Re: Preserving tree slices
From: Doug Stowe
Date: Sat, 22 Sep 2001 15:01
Date: Sat, 22 Sep 2001 15:01
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In article <3babb67e.140930592@news.cable.ntlworld.com>, dr_smug@yahoo.co.uk (Ken Baker) wrote: > > That's all interesting advice, thank you. > > The slice in question is about 1m in diameter, and 10cm thick, and I > only have access to domestic equipment, so drying in a microwave or > conventional oven isn't on the cards. Soaking something that size > would be a bit of a pain, and I'm not sure I could afford that much > sugar, or PEG. 8-) > > I think I might go for the slow drying approach, and (regularly) > painting it with oil would slow down evaporation as well as being > absorbed. I'd like to varnish it afterwards, but I'll cross that > bridge when I come to it. > > Thanks again, all, for the advice, > > > Ken. Ken, a leather store here in Eureka Springs, Arkansas used to sell cutting boards made from birch tree rounds and belt buckles cut from tree limbs both with the bark still intact. It mystified me that they could be made without severe cracking. So I did some experimentation. I noticed that if I took a green tree branch and cut thin slices off the end, the slices would dry without cracking. The same tree branch, left in tact would crack severely. Evidently the cracking is at least in part from a differential in shrinkage from the end of the wood toward the middle in the process of drying. There are other factors involved as well, particularly the difference between radial and tangential shrinkage factors. I think you are right in going for the slow drying process. Doug
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 1120ec,de22d12b208af07 X-Google-Attributes: gid1120ec,public X-Google-Thread: 1129f3,f38385e6b97128ea X-Google-Attributes: gid1129f3,public X-Google-Thread: 106b31,f38385e6b97128ea X-Google-Attributes: gid106b31,public X-Google-Thread: 10bcbe,f38385e6b97128ea X-Google-Attributes: gid10bcbe,public X-Google-ArrivalTime: 2001-09-22 08:04:32 PST Path: arc1-ca.pugleaf.net!archiver1.google.com!newsfeed.google.com!newsfeed.stanford.edu!news-spur1.maxwell.syr.edu!news.maxwell.syr.edu!cpk-news-hub1.bbnplanet.com!news.gtei.net!news.voicenet.com!nntp2.aus1.giganews.com!border1.nntp.aus1.giganews.com!nntp.giganews.com!nntp3.aus1.giganews.com!news6.giganews.com.POSTED!dstowe From: Doug Stowe <dstowe@arkansas.net> Newsgroups: sci.bio.botany,bionet.agroforestry,sci.archaeology,rec.woodworking Subject: Re: Preserving tree slices Organization: Douglas Stowe, Inc. References: <3ba9bb76.11111010@news.cable.ntlworld.com> <3babb67e.140930592@news.cable.ntlworld.com> User-Agent: MT-NewsWatcher/3.0 (PPC) Message-ID: <dstowe-C62059.10013422092001@news.arkansas.net> Lines: 36 NNTP-Posting-Date: Sat, 22 Sep 2001 10:04:16 CDT X-Trace: sv3-1zAPpM1OFSaq7N/GcCdoiinb5M3ekKCJ7SMzwwslgj9EvMxa3MP3f889nB4fpON/xBcm+tPXe0/MaSf!UgT/AJiq1ky+w54EhWTyCuTjffGxYVKXsdXDzqcaJg1TPjeB9Dd+FmWruvhKxjDqyxABY1NOwqDl!ihH4HOj0QToi X-Complaints-To: abuse@GigaNews.Com X-DMCA-Notifications: http://www.giganews.com/info/dmca.html X-Abuse-Info: Please be sure to forward a copy of ALL headers X-Abuse-Info: Otherwise we will be unable to process your complaint properly Date: Sat, 22 Sep 2001 10:01:34 -0500