This is a remix of the thing:4894561.
Gave a little more space for the duct for stock carriage.
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This fits nicely with my supderduct and modded stock x-carriage https://www.prusaprinters.org/prints/114005-detachable-duct-remix
https://www.prusaprinters.org/prints/116326-x-carriage-for-superduct
The author hasn't provided the model origin yet.