Main Discussion Area > HowTo's and Build-a-longs
osage board bows: 2 at once
El Destructo:
You could also go Modern World...and get e Router...and cut out just the divot area....as deep as necessary to flatten it out....cut a replacement piece and glue it up....then Back it.....or just toss the dang thing and start over....the easiest choice...... :P
radius:
hey, thanks for the advice guys!
toss it? uh, no! My very best bow to date has a similar thing to that, but it's not just wane, it's actually grain run off where the board had been damaged...but it's hickory, which use could launch a space shuttle from and not see any damage...
I hadn't even thought of belt sanding the back off until it was flat...that's not a bad idea...that would almost complete the work of tillering, too...i think i may go for that, and then back it with the bamboo i've prepped in a reflex to gain some oomph.
radius:
Come to think of it...my router is missing me a little...and I have some extra osage tapered pieces from where I table-sawed the extra wood off the belly...that's the way to go, I think...
radius:
OK...
Since this is a 2 at once, compare and contrast buildalong, i left the waney one leaning in the corner today, and after work I rasped and scraped the pondsawn one for awhile. The thinner limb has a minor hinge in it, so i can't draw it very far. I want to even up the limbs (minus the hinge!) and then, when the stiffer limb is bending with the thinner one, clear up the hinge and chase my draw weight down to full draw.
Contrast scraped and rasped wood.
Same spot, from other side.
Here it is at about 13 inches draw...just before the hinge starts to show....
I'd like to work on it some more today, but I've got to meet the boys for a few...next time..
radius:
ok...finally got one on the short string...
tillering with a scraper and rasp were taking too long and eating up too much energy...so I switched to rasp and orbital sander...awesome combo...fast wood removal where needed, plus smoothing in very little time....
You see I have a clamp on my tiller stick...I originally had it at about 13", and drew heavy on the long string to get the string into the groove. That was a couple sessions ago. Yesterday I had the long string at about 16" pulling the same effort. Then I tillered some more, getting the hinge out and evening up the bend, to find that with the long string and the clamp at 16", very little real effort was required to hitch the string on the groove.
Here is a picture of that....
So I made a string about 2" shorter than the bow, and put the clamp back at 10" or so. This forced me to exert more energy to get it set up on the tillering stick. Here is where it sits now...
So, now that I've got it to this point: where it is evenly bending at the high weight I want out of this bow...is now the time to put the bamboo backing on? I mean, it feels to me like I could get this bow to full draw and full weight without any backing at all, despite grain runoffs...but common advice goes against this, right? If I tiller it to full draw and then back it, i'll raise the weight 5 or 10 pounds, I guess, and have to touch up the tiller...
What do you say, guys, now or later?
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version