last
updated 7/16/23 |
|
Welcome to the SSV Community Page for Box MakingHow to make boxes for a 1-lens SSV or 2-lens SSV |
|
Figure 1. Here we see the two basic
parts for a 2-lens SSV. The larger box is not a standard
Uline box but was cut down from a much larger box found
along the street side on trash day. The smaller box was
collected at a liquor store and found to be a perfect
fit inside the larger box with no wiggle. It became the
Barlow holder and saved us a little bit of gluing. |
|
General Comments
|
|
After the 2017 total solar eclipse we
began thinking about the next eclipse and how the solar
viewers we devised could be more easily construed,
especially for those who lack access to a wood-working
shop. We had already concluded they should be made with
cardboard and glue when community member Bart Thomas
came up with the idea of using an off-the-shelf box made
by Uline
as the framework for the SSV. Since we are now teach
everyone to fix the objective lens 36 inches from the
screen, the skinny Uline box 36 inches long makes a
perfect viewer. In this new design, the Barlow lens is
in a movable holder that is adjusted to achieve focus. Suppose there is not enough time to
order a Uline box or perhaps you are making a 1-lens SSV
and the Uline box is an unnecessary expense. You can
make your own box by cutting up and gluing together
various east to find cardboard boxes. Some viewers will
read this section and look at the picture at the top of
the page and set out to complete the task. Other folks
want a step by step dissertation on how it is done. I
know this because you have told me so and there nothing
wrong with that. We want to help everyone be successful
with their SSV. So those of you who don't need the rest
of this page, go do it. For those of you who want to see
how we made our boxes, the rest of this page is for you. |
|
Step One is Box Size
|
|
Decide on the final size of your box.
Are you making a 1-lens SSV? Then you want to end up
with a 3-sided box whose length depends on the power of
your eyeglass lens. Check Table I in the section on 1-lens SSVs. A +1 diopter eyeglass
lens will give you the largest image and you will need
to make a box 39 inches long. A +2 lens will need a box
20 inches long. These boxes could have ends that are 3
inches by 3 inches or larger. With the 1-lens viewer
that size is relatively unimportant. If you are making the two lens SSV, the
you should aim for a box 6 x 6 x 36. |
|
More to be added soon. Check Back |