Trad Gang
Main Boards => The Bowyer's Bench => Topic started by: wood carver 2 on July 23, 2016, 03:06:00 PM
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A few days ago, I glued up a bamboo/ osage/ bamboo tri lam. When I began to tiller, it looked really good and I thought that I would be able to shoot that bow the same afternoon. Then I noticed a spot where the belly lam separated from the limb about halfway up the fadeout ramp on the lower limb, about 5 or 6 inches from the handle end of the lam. The bamboo folded back and became creased.
Last night I ground off the offending piece of bamboo and glued on a new one. The new one looks good, but the lower limb is now warped to one side by at least 1/2 inch.
I clamped the riser to my bench and hung a 5 pound chunk of lead from the warped tip and it bent a little way past center. It's really hot in the garage, so I thought it might help get it straight again.
Did I do the right thing? Is there a better way to fix this?
Dave.
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Yes, other than I have my doubts as to whether it's going to be hot enough in your garage to effect a permanent fix. I put it in the vice and use a heat gun.
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I checked it after about an hour and a half and the weight had pulled the tip down well past where I wanted it, so I removed the lead. It came back just about to center again but it had a small twist. I cranked it back straight and wouldn't you know! it stayed that way. :)
I'm guessing that between the glue being less than 24 hours old and the hot garage ( it was about 100 degrees in there ), there was enough give in the glue up. I just brought it into the cool house now and I 'll let it sit overnight to finish setting up. It looks straight now, so I'm hoping for a shooter. :pray:
Dave.