March 6, 2022
Description
Board fan of the ender 3 does not turn on till 2nd layer because its coupled with the filament cooling fan, I do a lot of large prints and don't feel comfortable having the fan off for so long.
so I designed a easy fix
Needed: 50x50x15 blower fan (WINSINN 50mm Blower Fan 5V 5015) on Amazon they have them with USB so no wiring needed, fan is held in place with hot glue, I guess you can do it prettier than me :-)
I attached rubber bumpers to keep it from moving, double sided tape works too, make sure wires are out of the way, https://www.thingiverse.com/thing:2880021 clips works best.
Make sure the fan pulls the air out of the Board case as the build in fan pulls air into the board case.
UPDATE:
After using the fan for a while I noticed warping on larger Prints only on the right corner, and I guess it might be the fact that the fan blows air right under the Bed and cools the right corner down. I might have to add a duct to divert the air to the side or front.
Printer Brand:
Creality
Printer:
Ender 3
Resolution:
0.28
Infill:
30
Filament: Sunlu PLA Blue
Notes:
Holes print fine without supports
License:
Creative Commons — Attribution
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