The WhistleBlower - Prusa i3 X Carriage for E3D Chimera with built-in layer fan

Also see
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Front mount for BLTouch: https://www.thingiverse.com/thing:2070920

What is this?
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The WhistleBlower is a compact , small and light x-carriage for Prusa i3 with an integrated mount for E3D Chimera or Cyclops dual head

Disclaimer
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This is a work in progress. I'm currently printing and trying the last prototypes.
Be aware that no print has been made with this head/mount combo yet
Also, the nozzles end up signific