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drying bowl blanks

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Forum topic by Karda posted 03-18-2018 09:30 PM 568 views 0 times favorited 11 replies Add to Favorites Watch
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Karda

1237 posts in 675 days


03-18-2018 09:30 PM

I often do my bowls in stages so the saving dry. when drying bowl blanks in a bag of shaving, do the saving have to be wet or can they be dry.


11 replies so far

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LesB

1802 posts in 3565 days


#1 posted 03-19-2018 12:49 AM

Your shavings can be dry or damp but the finer the better.
The object of the drying process is to slow the surface drying and allow the inner moisture to come out slowly to relieve stress in the wood. The sawdust keeps escaping moisture around the wood surface so it escapes slower. This can take from months to years depending on the size, shape and type of wood. Manzanita can for instance can take years.

Another method if you are in a hurry is using the Microwave oven. There is lots of info on doing this if you search the internet. I do it all the time and it is usually quite successful.

-- Les B, Oregon

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Karda

1237 posts in 675 days


#2 posted 03-19-2018 01:09 AM

thanks, ill remember the sawdust, I throw that away. I should have thought of that

View LeeMills's profile

LeeMills

589 posts in 1423 days


#3 posted 03-19-2018 02:53 PM

I’ve never used shavings at all. Just into a grocery bag (paper) and staple or tape it shut.

-- We cannot solve our problems with the same thinking we used when we created them. Albert Einstein

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Karda

1237 posts in 675 days


#4 posted 03-19-2018 03:22 PM

ok

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Ron Ford

209 posts in 1854 days


#5 posted 03-21-2018 04:44 PM

I have also found that warping of the once-turned bowl can be minimized by painting Anchorseal or similar product on the end grain portions of the piece. Still pack it in shavings as you noted.

Ron

-- Once in awhile I make something really great. Most days I just make sawdust.

View hairy's profile

hairy

2752 posts in 3654 days


#6 posted 03-21-2018 07:37 PM

I put the shavings from turning it in the bag with the bowl and tape it shut. Write the date, species and weight on the bag. When it quits losing weight, it’s dry.

-- My reality check bounced...

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Karda

1237 posts in 675 days


#7 posted 03-21-2018 08:12 PM

thanks, can you wrap in newspaper, if no paper bags. can you y\treat the raw slab the same

View Lazyman's profile

Lazyman

2399 posts in 1509 days


#8 posted 03-22-2018 07:27 PM

I would use at least some of the wet shavings from the rough turning. If the shavings are too old and too dry, I would be afraid that they might actually act to pull moisture out more quickly, though that is not based upon experiences since I have never used just old dry shavings. I have tried just using a bag without the shavings and having the shavings in the bag seems to slow down the drying process so you get less cracking. The type of wood and the initial condition it is in (how dry, how much juvenile wood, etc.) will make a difference too.

A cardboard box will work too if you don’t have a paper bag. I haven’t tried newspaper but you would need to use many (12+?) layers. For blocks that are waiting to be turned, I have found that if I set them on end on the concrete shop floor, that helps considerably to prevent drying out too fast and cracking while sitting around, even if I have sealed the end grain. On the end that is pointed up , I usually put a slice of wood leftover from previous blank preparation and that helps prevent cracking there too, though not as well as the end on the concrete.

-- Nathan, TX -- Hire the lazy man. He may not do as much work but that's because he will find a better way.

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Karda

1237 posts in 675 days


#9 posted 03-22-2018 07:50 PM

the reason i ask about dry shavings is many times I don’t turn a complete bowl all at once, I do it in stages. Rough the bottom today and do the inside the next day. What if I wet the dry shavings. If I use a box can I put more than one bowl in the box. Thanks mike

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Lazyman

2399 posts in 1509 days


#10 posted 03-22-2018 08:06 PM

Adding a little bit of moisture to the shavings should work. You want the shavings to be almost as wet as the bowl you are turning. If it is just overnight for example you can just put it into plastic bag. That will prevent moisture from coming out overnight. Just don’t leave it in there too long or it may start to mildew. Shavings a a paper bag can mildew too if they are too wet so it is a good idea to check them week or two and sort of stir or fluff them up to prevent mildew.

Yes, you can put as many bowls as will fit in a box or a bag.

-- Nathan, TX -- Hire the lazy man. He may not do as much work but that's because he will find a better way.

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Karda

1237 posts in 675 days


#11 posted 03-22-2018 08:14 PM

ok thanks

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