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Thread: Bow building question
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9th November 2005, 09:03 PM #1
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Bow building question
I have a question about sanding.
Though I am not into it myself, I have a good mate who makes and shoots bows. He wants to make a laminated longbow and needs to make a sanding machine that produces a tapering lamination by say 10 thou (.010) per foot.
We know that a sine bar type arrangement is needed for the taper and that the lamination shall be attached (glued or taped ) to the top and then passed under said machine.
The question is do we use a belt sander or a drum sander. Are there any bowyers out there that can shed some light on the subject.
Thanks from
Grahame
Who knows bugger all about bow building.
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10th November 2005, 12:43 AM #2
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Bowyer Den
Hi
You might try joining
http://groups.yahoo.com/group/bowyersden/
Great bunch of guys with a wealth of knowledge
Regards
Solly
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10th November 2005, 09:11 AM #3
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In one of his books, David Charlesworth made a sled for the thicknesser for some laminated legs on a table he made. From memory the laminations were about 1m long and varied from 5mm to 3mm to 4mm over the length. If you need more info I'll see what I can dig up
If I do not clearly express what I mean, it is either for the reason that having no conversational powers, I cannot express what I mean, or that having no meaning, I do not mean what I fail to express. Which, to the best of my belief, is not the case.
Mr. Grewgious, The Mystery of Edwin Drood - Charles Dickens
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10th November 2005, 08:19 PM #4
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Any reason you wouldnt use a plane - perhaps in a custom-made chuting board.
Arron
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10th November 2005, 11:16 PM #5
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I's say make a sled in 2 layers - with one end pivoted/hinged, the free end can be shimmed to give any amount of taper required, and it would work with a drum sander. You'll need to use thin double sided tape - not the foam or cloth cored stuff - to stick the lamination to the sled.
Running it thru a planer/thicknesser would be a bit iffy, you'd want to have very good double sided tape to secure the laminations with or there will be little bits everywhere.
Or do what a lot of people do - buy the laminations already tapered from someone like 'The Old Master Craftsman' - there are a heap of suppliers in mags like 'Primitive Archer'
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10th November 2005, 11:52 PM #6
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The sled idea will work with a thicknesser, just add a dab of hot-melt glue to the tail-end of the stock and use a hair-dryer to help remove it afterwards.
Works for me on similar jobs. [shrug]
- Andy Mc
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