I couldn't understand why my force draw machine gave a lovely big vertical deflection when calibrating it on the dial spring balance, but when I tested it with a bow the deflection wasn't the same!!?? In fact it was about half what it should be!
Had the bows mysteriously lost weight?
I investigated carefully by attaching the balance to a bow so I was pulling both at once, then the penny dropped.
I wasn't a factor of 2 out, it was more like 2.2
Have you twigged yet? Yes I was reading Killograms instead of pounds when testing with the dial balance.
I shall add another pulley to get more vertical deflection.
What an idiot!
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Everything an amateur bowyer does to turn a log into a bow throughout the year. Making bows, longbows and primitive bows with all the tips, tricks and problems.
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- Derek
- I've posted hundreds of videos on my Youtbe Channel "Del Cat" . My old site is http://sites.google.com/site/delsbows It has loads of pictures a few videos, don't miss the Chinese Repeating Crossbow! And loads of stuff about bows.
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