the only reasonable alternative. However, in my experience, copying
documents and photos, a flatbed scanner is faster than a manual copy
stand, especially if the documents are not identical in size.
Additionally, for multi-page documents, by scanning I can make
multi-page pdf files without any additional time compared to making
single page files and save all the post-processing time I would have to
spend to merge multiple image files from the memory card of a camera.
I'm sure that there are pros and cons to each copy technique and
scanning will be easier and faster for some copy jobs and a copy stand
will be easier and faster for others. I haven't even raised the issue
of color balance and lighting source when comparing the two copy methods.
Not bad, really. I like his solution for the slowness of adjusting
with nuts on a threaded rod-
"Early on I supported the camera frame with "twisting nuts". These
were over size nuts with the top filed to be at an angle (ie just big
enough to slide up and down without turning.) . When a load is resting
on the nut it twists against the thread and locks. To adjust you just
twist the nut back to slide it up an down. In the twist position you
can still turn the nut a little for fine adjustments.
For example on 5/16" rods use a 3/8" nut (18 TPI and 16 TPI but it
doesn't seem to matter). "
[his diagram illustrates it well]
It seems like I've seen them already made-- anyone have a name for
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