On occasion, I have had to use an additional fan to provide cooling while printing multiple hour long prints with PLA. I’ve been doing so with this fan:
The problem with this arrangement is that the fan is 110v manually controlled by me. If it is on during the initial layer, there’s a good chance that it won’t stick to the bed and if it isn’t on for the upper layers, heat creep or the top layer creeps up until the nozzle hits. Since I’m easily distracted, I don’t always do my job right
My solution is to mount two 80x80 12v fans to the frame as pictured below (twice is not my fault). The easiest electrical solution is to wire these two fans in series and then connect them (in parallel) to the existing extruder mounted cooling fan wiring.
Is this a viable electrical solution? If not, suggestions are welcome!