Primitive Archer
Main Discussion Area => Bows => Topic started by: clewis on September 08, 2019, 08:15:36 pm
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Anybody ever try a pressure washer on sugar maple? I have a 2200 psi pressure washer and does a good job removing bark and cambium from hhb, just wondering if anyone has tried it with maple.
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I haven't tried it on sugar maple, but I'm guessing it would work. Maybe try it on a scrap piece first.
Bjrogg
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can't imagine why it wouldn't work. I say go for it
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Sugar Maple does have quite different bark structure. It seems like it might be a bit tougher to get it started.
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I don't know why you would want to. The bark comes off easily enough
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I don't know why you would want to. The bark comes off easily enough
So I've put about 1.5hrs into debarking each of these staves with a pocket knife and I'm not feeling it, knuckle is pretty scraped up as well. One stave I removed the bark to the cambium with a draw knife and the other I left the bark on. Any suggestions on how to remove the bark?
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I use a draw knife to remove the bulk of the bark then flip it and then use it as a scraper. Takes me less than an hour per stave
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So with that method you’re sure to violate back of the stave, so how much violation can the back tolerate? A closeup picture of the back of one of yours or anybody’s bows/staves would be really helpful. The growth rings are tight on my staves so if there a violation how much do I feather it out?
Thanks
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Clewis: I used a power washer to debark fresh staves. That works fine.
For dried staves I suggest hot water or steam, especially for the cambium: The bark/cambium will just come off like on freshly harvested wood. After steam/hot water you will be able to remove the cambium with a strong brush very clean. Before you do that start with the draw knife, as suggested by Marc.
Cheers
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Paul comstock mentions a good hot shower being enough to really loosen the bark. It’s still less of a hot mess to just use the drawknife.Im allergic to a lot of outer bark so I’ve tried it both ways and the drawknife involves almost no exposure of bark to my hands. If you use a splitting motion and kind of pull the cambium up you shouldn’t make a mistake, you’ll only cut into wood if you use too much slicing. Don’t slice if you can’t see what you’re you’re slicing-especially over bumps and knots. I mainly just slice to set my knife in the fibers, then wedge and pull them out. Try to keep the knife over a cushion of cambium and not bare wood. A sharp drawknife does all this with less effort but will make a mistake with less effort too. When you have a thin coating of cambium left (starts to look translucent) then you can scrape it all off or just scrape a controlled pattern.
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So with that method you’re sure to violate back of the stave, so how much violation can the back tolerate? A closeup picture of the back of one of yours or anybody’s bows/staves would be really helpful. The growth rings are tight on my staves so if there a violation how much do I feather it out?
Thanks
I'm sure you could violate the back if you are clumsy
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So with that method you’re sure to violate back of the stave, so how much violation can the back tolerate? A closeup picture of the back of one of yours or anybody’s bows/staves would be really helpful. The growth rings are tight on my staves so if there a violation how much do I feather it out?
Thanks
I'm sure you could violate the back if you are clumsy
Or just inexperienced maybe? Not everybody has been doing this for years ;)
Yes it would be easy enough to nick the back with a draw knife. Go slowly and carefully.
Most barks come off very easily when fresh cut and the sap is flowing. If that were the case here I'm sure you wouldn't be asking this question :)
Cutting in autumn/winter early spring will mean the bark is very well stuck to the wood. Also drying a stave with the bark on will lead to the same thing regardless of when it is cut.
So if the bark is stuck then remove as much of the bark as possible with a quick tool (drawknife) then go slowly as you get down in to the cambium layer. Use a scraper or the steam method from here. Steam is the way to go for ease. Your pressure washer may also work but go gently to start with.
If the bark is stuck
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Inexperienced yes, clumsy definitely! I’ve really only worked maple once before about 8-9 years ago and I don’t remember it being this difficult. My last experience using a pocket knife it would come off in nice little 1-2” chips with some work. But this is just frustrating now. I’ll try the steam method and probably skip the draw knife. The good thing is I have 8 maple staves to work to keep me busy over the winter.
Thanks
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The outer layer of bark on most(if not all) trees is waterproof so for the steam/hot water to work well you really need to get the thin outer shell off first.
PS I have had no experience with Sugar Maple ;D