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What’s on your lathe?

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need some advice. Have an 8 inch claro walnut bowl I rough turned which has a defect. I can turn it smaller, leave it as a hole, or fill/highlight with copper powder/epoxy. Thoughts?
 

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Michael Anderson

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need some advice. Have an 8 inch claro walnut bowl I rough turned which has a defect. I can turn it smaller, leave it as a hole, or fill/highlight with copper powder/epoxy. Thoughts?
Wild grain on that one! It looks like the defect is part of a crack system. If it were me, I would the hole with epoxy and sawdust/bark/coffee grounds, and then put a line of pewa along the crack (including one going through the middle of the epoxy repair).
 
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Wild grain on that one! It looks like the defect is part of a crack system. If it were me, I would the hole with epoxy and sawdust/bark/coffee grounds, and then put a line of pewa along the crack (including one going through the middle of the epoxy repair).
Good idea. Then I won’t have to make it a smaller diameter and that will add interest. Thanks.
 
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Made my first deep hollowing. Started with a very simple shape just to test out my DIY tool and to figure out how to use it (tool is about 4 1/2 ft long with an 8mm carbide cup on the end). The wood is green sycamore, and the final form is about 12" L x 4" W.
 

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Joined
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Adelaide Hills, Australia
Finish turning a swamp Kauri bowl. Will be 9.5”d x ~3.5”h when complete. A turner sent me a blank from New Zealand and challenged me to mimic a smaller bowl he made. Fun! This is quite a challenging timber to turn. It is extremely soft, very stringy, and dulls tools quickly. The reward is fairly intense chatoyancy and a rich color.

View attachment 62900

Michael

Did you get an age with that piece of Swamp Kauri.

I have one piece carbon dated at 12,000yrs waiting to be turned. I guess it can wait a bit longer!

 
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I'm always on the lookout for butternut on my place. I have found a dead one that was too punky to turn but I'm sure there's more on my 5 acres. I found a dead tree that Picture This identified as butternut. Wrong again, Picture This. I cut it down and didn't notice any particular smell. However, it was pretty apparent it was sassafras. The sassafras bark is quite red on the inside. Anyway, to my happy surprise, it had a couple of nice crotches. Here's the first of what should be four sassafras crotch bowls. I still need to finish the bottom. You can see that the first 4-5 outer rings are pretty punky. Beyond that it is pretty solid. The other half of this crotch is deeper so perhaps I won't go live edge on that one.

IMG_20240426_084203.jpgIMG_20240426_084244.jpg

IMG_20240426_084230.jpgIMG_20240426_084148.jpg
 

Michael Anderson

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Michael

Did you get an age with that piece of Swamp Kauri.

I have one piece carbon dated at 12,000yrs waiting to be turned. I guess it can wait a bit longer!

Hey Neil. I got this blank from Terry Scott. He said he harvested/milled it with Gordon Pembridge around 20-25 years ago from a batch of logs in an acidic swamp. Didn’t give a date, but I’m assuming it’s x-thousands of years old. Has that same dark brown patina. It may be my imagination, but it seems like there is dirt embedded deep into the wood. Tools dull quickly and the fine shavings disintegrate when rubbed. Pretty wild. Here is a pic of them harvesting the log way back when:

F503AAEC-AA86-4CCA-82B7-0B5447A9FA4E.jpeg
 
Last edited:
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Hey Neil. I got this blank from Terry Scott. He said he harvested/milled it with Gordon Pembridge around 20-25 years ago from a batch of logs in an acidic swamp. Didn’t give a date, but I’m assuming it’s x-thousands of years old. Has that same dark brown patina. It may be my imagination, but it seems like there is dirt embedded deep into the wood. Tools dull quickly and the fine shavings disintegrate when rubbed. Pretty wild. Here is a pic of them harvesting the log way back when:

View attachment 62980

Michael

Some of those Kauri were already up to 2,000 yrs old before they were submerged in the swamp and going by the size of that root ball in the photo, that tree was a big one if not also already old when it went down.

So, regardless of how long it was buried, it is a very special piece of wood you have there Michael.
 

odie

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Panning for Montana gold, with Betsy, the mule!
I normally pass on bowl blanks this small, unless it's exceptionally rare, or very uniquely
beautiful.......like this one! When I first saw this 5 1/2" two-tone Bubinga, it was just too hard
to resist! :)

The chatoyance in the sapwood was something that wasn't apparent, until after it was sanded.

-o-

20240427_235430.jpg 20240427_235503.jpg
 
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Michael Anderson

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Michael

Some of those Kauri were already up to 2,000 yrs old before they were submerged in the swamp and going by the size of that root ball in the photo, that tree was a big one if not also already old when it went down.

So, regardless of how long it was buried, it is a very special piece of wood you have there Michael.
That’s amazing, thanks for the info. They’re real giants of the old and new. The growth rings are pretty tight on my bowl, and the root ball is huge. I bet you’re right that it was ancient before it even made it to the swamp. It’s something that is almost unfathomable. Here’s the current state of affairs (as of late last night). Have done a bit of preliminary sanding, but not too much. A fair number of thin cracks, but given how special the wood is, I’m taking the time to reinforce with a bunch of pewa.

FB90BAD8-394B-4887-97AA-81CF5562ED07.jpeg
 
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Spalted Oak. 9x4. Wet with DO.
View attachment 63001
I am left wondering what exactly that coloration comes from. I would not guess spalting first off. I have seen this type of pattern in a number of trees, and they are all in the process of dying. The coloration does not follow the growth rings. Maybe it is spalting and dying. Not sure... Anyone know for sure?

robo hippy
 

Michael Anderson

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I am left wondering what exactly that coloration comes from. I would not guess spalting first off. I have seen this type of pattern in a number of trees, and they are all in the process of dying. The coloration does not follow the growth rings. Maybe it is spalting and dying. Not sure... Anyone know for sure?

robo hippy
I'm inclined to agree with Reed. I don't think it's spalting, but rather something similar to olive Ash. Spalting in Oak almost always occurs in the sapwood, outside-in. If present in the heartwood, the sapwood is usually too far gone. Mike's sapwood is pretty clean, but the heartwood (and the heart/sap border) contains the color.

I've read that the color pattern, at least in olive Ash, comes from a non-harmful bacterial infection. You have a pretty special piece of timber there, Mike. Cool!
 
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That’s amazing, thanks for the info. They’re real giants of the old and new. The growth rings are pretty tight on my bowl, and the root ball is huge. I bet you’re right that it was ancient before it even made it to the swamp. It’s something that is almost unfathomable. Here’s the current state of affairs (as of late last night). Have done a bit of preliminary sanding, but not too much. A fair number of thin cracks, but given how special the wood is, I’m taking the time to reinforce with a bunch of pewa.

View attachment 63017
I do have a couple pieces of Kauri wood, as I have cousins in Australia and New Zealand that have large dairy farms there.
One of my sisters went for a 3 month holiday and visited both cousins.


The one in New Zealand was pulling old logs out of a swamp on his farm (use for firewood) also has hot springs there, anyway she bought some wood and other pieces, gave the wood to me.

It is a softwood, fine grained, light weight and really a lot like Redwood, not much grain and I would say pretty bland/boring wood, nothing special but for its age.

I have not turned it, as to me it would be just another piece of wood if turned, now it has the stamp on it with the info on the age and carbon dating.
I have both a light and dark piece of it.

Kauri wood.jpg
 

Michael Anderson

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It is a softwood, fine grained, light weight and really a lot like Redwood, not much grain and I would say pretty bland/boring wood, nothing special but for its age.

I have not turned it, as to me it would be just another piece of wood if turned, now it has the stamp on it with the info on the age and carbon dating.
I have both a light and dark piece of it.
I think you’re spot on there. As far as a quality turning wood, uuhhhh probably toward the bottom of the list. This may have even been more painful than Torreya. Maybe. But, the age and history put it toward the top of the “interesting” list. I’ve seen a few examples with interesting figure, but the one I have is pretty bland. Though, the chatoyance will be pretty dramatic and there are a few interesting compression bands. The fine soft grain does make for a sort of static/white noise look when sanded/oiled If that makes sense.

I think you made the right move by not turning those blocks. Pretty cool to have the date stamp there.
 
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I am left wondering what exactly that coloration comes from. I would not guess spalting first off. I have seen this type of pattern in a number of trees, and they are all in the process of dying. The coloration does not follow the growth rings. Maybe it is spalting and dying. Not sure... Anyone know for sure?

robo hippy

I'm inclined to agree with Reed. I don't think it's spalting, but rather something similar to olive Ash. Spalting in Oak almost always occurs in the sapwood, outside-in. If present in the heartwood, the sapwood is usually too far gone. Mike's sapwood is pretty clean, but the heartwood (and the heart/sap border) contains the color.

I've read that the color pattern, at least in olive Ash, comes from a non-harmful bacterial infection. You have a pretty special piece of timber there, Mike. Cool!

You are right Michael, that is staining, not spalting.

I have always thought it would happen with Oak sitting in too wet a condition.
It will not (can not) spalt but will stain in that condition.
I also wonder what's going on as it doesn't look like spalting I've seen but "they" were calling it spalting. The un-colored white wood looks a lot like oak and the owner was calling it oak. Freshly cut large tree that looked like it was healthy.
 

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I also wonder what's going on as it doesn't look like spalting I've seen but "they" were calling it spalting. The un-colored white wood looks a lot like oak and the owner was calling it oak. Freshly cut large tree that looked like it was healthy.
I think it is a type of spalting, as I’m 99% sure it is cause by a fungus. I’ve seen it in trees that had years of water damage due to large branches breaking off at the trunk, or due to being improperly pruned. I’ve also seen it in trees with termites running up the heartwood from underground. Seri Robinson is demoing this week for one of my clubs. I’ll try to remember to ask about it.
 
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I think it is a type of spalting, as I’m 99% sure it is cause by a fungus. I’ve seen it in trees that had years of water damage due to large branches breaking off at the trunk, or due to being improperly pruned. I’ve also seen it in trees with termites running up the heartwood from underground. Seri Robinson is demoing this week for one of my clubs. I’ll try to remember to ask about it.
Some info and photos I've found indicates it's likely a form of "codit". https://www.drstump.co.uk/compartmentalisation-of-decay-in-trees/
 
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That’s amazing, thanks for the info. They’re real giants of the old and new. The growth rings are pretty tight on my bowl, and the root ball is huge. I bet you’re right that it was ancient before it even made it to the swamp. It’s something that is almost unfathomable. Here’s the current state of affairs (as of late last night). Have done a bit of preliminary sanding, but not too much. A fair number of thin cracks, but given how special the wood is, I’m taking the time to reinforce with a bunch of pewa.

View attachment 63017
Is that some lacquer so CA from embedding the pewa won’t stain? Gonna look great.
 
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