Throughout this site click on any image for a larger picture.
I decided to build. The reason (hmmm) to follow the theme of home made,
an to save $ using materials I had or could acquire easily. So the question
was what kind of spider assemble to build? I decided to go with a 3 vain.
The spider vain material was my own idea. I found a lot of other ideas
for spider veins off the Internet from wood, metal rulers, and wire. The
materiel I used was PC card support backing. I had several old parallel/serial
card holders laying around, an this seemed to fit the job.
After hammering them flat I soldered PC board stand off screws to the ends. This provided something to screw into. I then pop riveted the other ends to a 3/4" square stock piece of aluminum. My original design had one pop rivet per vain, which caused to much slop, so I ended up using 3 pop rivets per vain.
I used a shovel handle as the holder for the secondary mirror. The picture
to the left shows the setup I used to glue the secondary to the holder.
I used 3 blobs of silicon an drill bits as spacers. After the glue was
dry I removed the spacers. I have also added a secondary heater while
the assembly was under construction.
Programming by: Victor T. DeCristoforo
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October 17, 2009