A little while back, a dear friend asked me to build a bookstand to
support an atlas which she uses pretty much on a daily basis. After
talking with her and her family to gather all requirements and make
measurements, I cobbled up a
quick (for me) prototype outta tuba4's and assorted scrap which I
quickly shellacked to glue the dust down and presented for approval of
the dimensions, etc. *And*
I told her that it was just a prototype and
she couldn't keep it because it pains me greatly to see this collection
of soon-to-be kindling in her home. Unfortunately, she loved it, but...
(Now since we all understand the relationship between good deeds and
punishment, I figure you'll relate when I mention that this is the
part of the story where feature creep rears its ugly head.)
... she has a need to sometimes walk around the house and sometimes let
her wheelchair do the walking. So the added requirement is that this
bookstand be adjustable in height. Now I've scratched my head over this
for a while, been to the library, DAGS (several actually), and have to
admit that I'm stuck. The deal is that it's gotta be rigid and stable.
And effortless (or at least easy) to move from one position to the
other. And look like furniture. (That's *my*
requirement.) I've thought
of cantilevering/counterbalancing, coil springs, gas springs, scissors
jack, screw lifts, but nothing feels *right*
So I fling my plea to the farthest reaches of the wreck. Any ideas? I
don't reject the above mentioned methods out of hand, but I just haven't
figured out how to incorporate them into something that I want to look
like it belongs in a living room or study.
The range of the movement is approx. 12 inches. It will only rest in
the two extreme positions. The weight of the atlas is 8-10 lbs. Did I
mention that it has to be rigid and stable?
Would it help if I posted pictures of the prototype on abpf/w?