How I learned to stop worrying, and love sonotube

Stephen Paul wrote:


In my quest for cheap solutions to age old problems, I finally finished up
the fan mod to the 12.5" StarFinder Dob.



Very good, Stephen. If your experience is like mine, you will have no
problems with the fan causing any vibration to the fairly massive 12.5
Starfinder sonotube OTA.

Might I suggest Delta Cygni as a good test object for the effects of the
fan? This is a fairly tight double with a significant magnitude
difference between primary and secondary. It is always amazing to me
how easy it is to split with the fan running and how difficult it can be
without the fan.


Regards,


Martin