Yes folks another one of Starklers
rough as guts ATM productions
Since there has been a bit of discussion lately about cooling fans for dobsonians, I thought I should post a few pics of how I approached the issue.
Ingredients:
1x80mm computer psu fan, a plywood disk, a few inches of velcro strip and a few feet of foam weather sealing strip.
The weather strip serves as a gasket and also to isolate mechanical vibrations from the fan from transmitting to the scope.