How to build a spider for your telescope:
Swayze Optical, Inc.
7635 SE Deardorff Rd.
Portland, OR 97236
Phone: (503) 777-7980
This spider is easy to make, it's inexpensive,
the vanes are very thin yet extremely strong, and it's light weight, too.
I need to give credit where credit is due. This isn't my idea. I don't
know who came up with this idea, but I first saw it at the Chabot Telescope
Maker's workshop in Oakland, California about 20 years ago.