I found this interesting instructable about making a postal scale from old CDs. The completed scale seems accurate enough for most peoples needs. Check out the link for more information about the build, including how to accurately calibrate the final scale using quarters.
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Weekend Project: Pinhole Panoramic Camera
A sturdy, panoramic design pinhole camera that uses 120 film. Thanks go to Ross Orr for the original article in MAKE Volume 09. To download The Pinhole Panoramic Camera video video click here and subscribe in iTunes. Check out...
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