Replicator 2X active cooling fan duct - front discharge by 3DPrinting4all model
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Replicator 2X active cooling fan duct - front discharge by 3DPrinting4all

Replicator 2X active cooling fan duct - front discharge by 3DPrinting4all

by Thingiverse
Last crawled date: 3 years, 1 month ago
This is an active cooling fan solution for the Replicator 2X. It is similar to the design by ten13th except it is made to work with any 40mm front-discharge fan. It is secured in place with two of the long hex bolts from the extruder, and the fan is secured to the duct using the bottom 2 screws.
I tried initially to use the MakerBot motherboard's cooling fan relay, however this is a 24V output so it should only be used with 40mm cooling fans rated for 24V. The relay did not seem to respond well when I connected a 12V voltage regulator to it in an attempt to use a 12V 40mm fan (which is much more common). To avoid damage to the mobo, I have the cooling fan now connected to an external power source.
The front-discharge fans are not as efficient as side-discharge fans due to the drastic reduction in flow cross-sectional area. This design will provide a gentle flow for moderate cooling (e.g. for making small ABS or large PLA parts); however, if you need more air flow (e.g. for small or detailed PLA prints), a side-discharge fan is recommended.

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