5015/4020/8025 (80mm) fans from RF300 DC motor

original model by Runeshard_X_3543916

If you  have a few RF300 motors lying around (they are usually found in cheap toys and most commonly in DVD drives), than you can use them for good!

• The 5015 blows as good as original 12v or 24v but uses only 5v (you can overvolt it to 9v but lifespan will decrease significantly), make sure that motor shaft is long enough, otherwise it will wobble
   
•  The 4020 fan doesn't blow that well as the original one (it does with overvolting) but maybe you still will find it useful
   
• The 8025 (80mmx25mm) fan blows really well, it may need some adjustments to position it but after that the vibrations are minimal
   
• The motor is fixed in place using super glue or you can melt its mount point with soldering iron

Note 

For the 5015 model, the motor polarity is reversed

Print settings:

I've used PLA for the casing and PETG for turbine, but you can go will all PLA or any other filament (except TPU95A) 

Layer height: I would recommend to go with 0.08, I did 0.2
Walls printing order: Outer first
Supports: YES


Alternatively, you can buy these motors here