Radiator fan

Placing a fan system on or under your radiator can save you on heating cost. Due to faster distribution of the heat in your room, your heating system doesn't have to work so hard. Commercial fan systems claim up to 20% savings.

For my Ender 3v2 this system is too large, this is why I split the print into two sections. Glue the parts together and you're good to go.

You will need:

• Heat resistant PLA (up to 130c), I used white PLA from ColorFabb
• 3 x 12v 60mm x 60mm fan, I used Sunon fans which make not so much noise
• 16 x M3 x 20mm screws
• M3 inserts
• 8 x 10mm round magnets
• 1 x KSD301 (normally closed) heat switch, I used one that switches at 40c
• Wires
• Shrink tube
• Tie wraps
• DC Power Supply Jack Socket Female (make sure you buy the correct diameter)
• 12v DC power supply
• CA Glue
• Soldering iron and solder

I included the Fusion360 file for you to adjust the size to your needs (might have a messy history).

1. Print the parts
2. Glue them together
3. Connect the fans in serial
4. Screw the fans to the printed part (make sure you point the fans in the correct direction)
5. Connect the negative wire to the DC socket (long pin)
6. Connect the positive to one side of the KSD301 (heat switch)
7. Connect the other side of the KSD301 to the short pin of the DC socket
8. Glue magnets in place
9. Place print under the radiator
10. Place KSD301 on the radiator (I used magnets)
11. Plug in and go go go

Don't forget the shrink tube :)