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Woodturning (rec.crafts.woodturning) To discuss tools, techniques, styles, materials, shows and competitions, education and educational materials related to woodturning. All skill levels are welcome, from art turners to production turners, beginners to masters. |
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#1
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Cracks in Cherry blanks
I wonder what happen?
Last spring, when I was roughing 10-11” dia. cherry blanks I had water spinning out of the wood. I coated them with Anchor Seal and let them to dry. Now when finishing those blanks half of them are showing hairline cracks. The other ash, birch and maple blanks that were done at the same time are coming out without cracks. |
#2
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Cracks in Cherry blanks
Were the walls almost vertical? That seems the most vulnerable to checking
in my experience. I don't coat, but do take care to spin the rough quickly at the last to throw as much water as possible. I then allow them to dry with plenty of air for several hours, until the surface water is gone before putting them on the shelf where they as in close quarters. They don't misbehave for me. Matter of fact, had my first crack in a rough in a long while this morning - beech. First time turning it, may have left it too thick. "Denis Marier" wrote in message ... I wonder what happen? Last spring, when I was roughing 10-11" dia. cherry blanks I had water spinning out of the wood. I coated them with Anchor Seal and let them to dry. Now when finishing those blanks half of them are showing hairline cracks. The other ash, birch and maple blanks that were done at the same time are coming out without cracks. |
#3
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Cracks in Cherry blanks
Denis, The cherry we use around here is difficult to dry without
cracking....But, I manage with the no breeze, no heat, no sun, and keep them in a dark cool place, therory.... Give then 4 to 6 monthes and you should have no problem.... OBTW, when I used to dry on the shelf in the garage, I found that there was too much air movement in that setting, so I started putting them in a sealed room where there could be no movement of air..... It seemed to help........Cheer..... Ken from down the road..... -- Ken & Debbie Bullock (Woodturners) Woodturning videos at: http://www.oneofakindwoodturnings.com SKP # 82323 "Denis Marier" wrote in message ... I wonder what happen? Last spring, when I was roughing 10-11" dia. cherry blanks I had water spinning out of the wood. I coated them with Anchor Seal and let them to dry. Now when finishing those blanks half of them are showing hairline cracks. The other ash, birch and maple blanks that were done at the same time are coming out without cracks. |
#4
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Cracks in Cherry blanks
Fruit woods seem to be more sensitive. I think they hold more moisture and
therefore shrink more which causes higher stresses and more cracking. The main thing is to slow drying as Ken Bullock mentioned. |
#5
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Cracks in Cherry blanks
I find cherry to differ greatly from tree to tree. The first four bowls I
ever roughed out from cherry all cracked. It gave me a bad opinion of cherry. Since then I haven't had one crack. I usually just rough turn then paper bag them in a cool place for 6 months, then take them out and shelve them for at least another 6 months. Tony Manella ndd1"at"prolog.net (remove "at") http://home.ptd.net/~ndd1/ Lehigh Valley Woodturners http://www.lehighvalleywoodturners.org/ "Denis Marier" wrote in message ... I wonder what happen? Last spring, when I was roughing 10-11" dia. cherry blanks I had water spinning out of the wood. I coated them with Anchor Seal and let them to dry. Now when finishing those blanks half of them are showing hairline cracks. The other ash, birch and maple blanks that were done at the same time are coming out without cracks. |
#6
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Cracks in Cherry blanks
Gentlemen: And after all this time, too! Lets try this all together.
Repeat after me: "EL, DEE, DEE." *G* Leif "Denis Marier" wrote in message ... I wonder what happen? Last spring, when I was roughing 10-11" dia. cherry blanks I had water spinning out of the wood. I coated them with Anchor Seal and let them to dry. Now when finishing those blanks half of them are showing hairline cracks. The other ash, birch and maple blanks that were done at the same time are coming out without cracks. |
#7
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Cracks in Cherry blanks
Leif,
I swear, you must have an LDD fetish! I'd say there's something aberrant about this affinity, but that would presume a greater acquaintance than I can admit to having. Regardless, since you've always been so encouraging, I'll support you on this one! LLL DDDDDD DDDDDD LLL DD DD DD DD LLL DD DD DD DD LLL DD DD DD DD LLL DD DD DD DD LLL DD DD DD DD LLLLLLLLL DDDDDD DDDDDD -- Ali T. Borahan AliSails - Fine Wood Artistry & Custom Woodcrafts Web URL: http://www.alisails.com ---------------------------------------------------------------------------- - "Leif Thorvaldson" wrote in message ... Gentlemen: And after all this time, too! Lets try this all together. Repeat after me: "EL, DEE, DEE." *G* Leif "Denis Marier" wrote in message ... I wonder what happen? Last spring, when I was roughing 10-11" dia. cherry blanks I had water spinning out of the wood. I coated them with Anchor Seal and let them to dry. Now when finishing those blanks half of them are showing hairline cracks. The other ash, birch and maple blanks that were done at the same time are coming out without cracks. |
#8
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Cracks in Cherry blanks
Thanks, Ali. I wouldn't call it a fetish, exactly, just trying to be
helpful to a guy who has a problem which is easily resolved. The others in the thread gave him the drying, complicated method leading to only a partial solution. This is only my attempt to give him a successful, alternative and make the answers more fair and balanced. (Now where have I heard that phrase before?) *G* Leif "Ali T. Borahan" wrote in message news:bb4db.20609$sp2.15074@lakeread04... Leif, I swear, you must have an LDD fetish! I'd say there's something aberrant about this affinity, but that would presume a greater acquaintance than I can admit to having. Regardless, since you've always been so encouraging, I'll support you on this one! LLL DDDDDD DDDDDD LLL DD DD DD DD LLL DD DD DD DD LLL DD DD DD DD LLL DD DD DD DD LLL DD DD DD DD LLLLLLLLL DDDDDD DDDDDD -- Ali T. Borahan AliSails - Fine Wood Artistry & Custom Woodcrafts Web URL: http://www.alisails.com -------------------------------------------------------------------------- -- - "Leif Thorvaldson" wrote in message ... Gentlemen: And after all this time, too! Lets try this all together. Repeat after me: "EL, DEE, DEE." *G* Leif "Denis Marier" wrote in message ... I wonder what happen? Last spring, when I was roughing 10-11" dia. cherry blanks I had water spinning out of the wood. I coated them with Anchor Seal and let them to dry. Now when finishing those blanks half of them are showing hairline cracks. The other ash, birch and maple blanks that were done at the same time are coming out without cracks. |
#9
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Cracks in Cherry blanks
Add-on question:
I'm being given a trunk of a tree that a farmer friend of mine refers to as "wild cherry". It's over 20" diameter and 15' long. There is no way I can rough-turn all of it in time to store it. Should I only take what I can rough-turn, or is there a way I can preserve the other sections for later use? Regards, Phil "Denis Marier" wrote in message ... I wonder what happen? Last spring, when I was roughing 10-11" dia. cherry blanks I had water spinning out of the wood. I coated them with Anchor Seal and let them to dry. Now when finishing those blanks half of them are showing hairline cracks. The other ash, birch and maple blanks that were done at the same time are coming out without cracks. |
#10
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Cracks in Cherry blanks
If you leave it in the log, especially with winter coming, you will lose but
little. I generally cover the freshly cut end with a plastic bag between sessions, though shavings, which you will have in abundance, will work nicely. Good thing about cherry heartwood is that it does not seem vulnerable to fresh decay, even in summer. When ready, take about an inch and a half off the end, then your pieces for turning, recover and repeat until the log is gone. Be especially aware of heart splits when you chose your cuts, and cut away until the smallest annual ring is about an inch or more in width on the rim to get best results. After that, you're on your own. I don't coat, just keep low to the floor in the cool basement until they are no longer clammy to the touch. Within the limits of your design, you might want to avoid going too thick (8-10% of diameter) or making the walls too vertical. Either seem to make the blank more prone to pulling apart. "Phil Anselm" wrote in message ... Add-on question: I'm being given a trunk of a tree that a farmer friend of mine refers to as "wild cherry". It's over 20" diameter and 15' long. There is no way I can rough-turn all of it in time to store it. Should I only take what I can rough-turn, or is there a way I can preserve the other |
#11
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Cracks in Cherry blanks
Phil,
I would suggest taking the trunk in the longest sections possible. (the whole 15' if you can manage) Cherry has an affection for splitting at the ends, so use a generous coating of anchorseal (or equivalent) at the cuts. The longer your pieces are, the more time you'll have to rough good wood. Take the opportunity and don't fret if you lose some. Cherry is wonderful to turn. Mike |
#12
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Cracks in Cherry blanks
Thanks to all who responded. One more question, please. I can't physically
handle a log 20" by 15', so cutting it up is necessary. Weight, not length, is my limitation. Would it be better to split the log lengthwise, and have longer sections, or leave it "in the round", and store shorter sections (each piece's length determined by the weight I can manage)? Thanks again, Phil "Michael Marxer" wrote in message om... Phil, I would suggest taking the trunk in the longest sections possible. (the whole 15' if you can manage) Cherry has an affection for splitting at the ends, so use a generous coating of anchorseal (or equivalent) at the cuts. The longer your pieces are, the more time you'll have to rough good wood. Take the opportunity and don't fret if you lose some. Cherry is wonderful to turn. Mike |
#13
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Cracks in Cherry blanks
"Phil Anselm" wrote:
Would it be better to split the log lengthwise, and have longer sections Yes. If you leave it round, it will definitely crack much more than if it is half-round. And more length is better for reduced overall amount of end-checking. -- Cats, Coffee, Chocolate...vices to live by |
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