This is an adapter connector for Extraction port of Makita 2012NB planer.

It is used to conect typical 4" (100mm) extraction ducts to the planer.

Depending on Your print settings inner part can need a bit sanding to slide it on the Makita extraction port.

I suggest to print it at least with 30% infill for rigidity.

Printed previously on other printers, but can be esily printed on X1C.