P6 connector does not accept hotend ferrules

[gramresearch]

1.40mm square ferrules do not fit this header. This is a very common ferrule size that typically comes on stock v6 hotends.

Recommend you substitute original P6 part with TE connectivity part number 1776113-2, which fits up to 1.70mm square ferrules.

Drill size of corresponding plated through holes will need to be slightly enlarged.