Air blowers may stop working after about a year or two of use.
The air blower used in the instructions is no longer made. Any air blower with a 4 to 4.5 inch circular output and a base that can have bolts put through it can be used. This includes:
I haven't tested any of these blowers, they just fit the schematics provided. If you have learned something useful about the blowers after building either dryer, please fill out the "Dryers Completed" Google Form, and I will add your response to the Blog.
Thanks, and happy construction!