Adjustable automatic fan activation switch for CTC dual
thingiverse
I often forget to flip the cooling fan switch when I'm printing objects with bridging, resulting in wasted filament that needs reprinting. To prevent this, I've installed a limit switch that activates the fan automatically after adjusting the Z-axis travel distance. This is my first post and was designed specifically for my CTC dual printer. It may also work on the following printers: MakerBot Replicator 1, FF3DP FlashForge Creator, CTC Creator Dual, WanHao Duplicator 4 and Duplicator 4X. Let me know if it's compatible or not. I hope this modification works well on your printer. If it doesn't, please let me know - you might need to sand the parts to get a smooth finish. To install, simply wire the C-NC contact of the limit switch in series with your fan switch. Assembly instructions and required parts are shown in the pictures. I hope this helps!
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