Quote:
Originally Posted by muletopia
Peter,
Some where o this site is a picture of an ota that my wife knocked up to make a 6 inch newtonian. Essentially half inch wide quarter inch thick wooden strips with semicircular tongue and groove full width of the strip thickness,painted black inside and a sheet of fibre glass epoxied to the outside. Light,strong rigid and negligible thermal expansion.
Chris
|
Thanks Chris. I'll see if I can find it.