I do a lot of high-temperature printing with ABS-GF and PA6-CF. I suspect that’s contributing to the issue, especially since I found someone else experiencing the same problem while printing with PA6-GF. This could become a common concern. Over time, heat from the hotend likely creeps into surrounding components. Stacking two PCBs inside the toolhead seems like a questionable design choice. Seems like placing them in the rear of the printer and using a data cable might have been more efficient. The large fan on the back of the H2D head doesn’t seem to provide much internal airflow due to how densely packed everything is. I considered adding a heatsink, but there’s barely any clearance to mount one effectively.I will probably be replacing this thing more than once.
That plus the air inside is hot so that fan gets no relief at all.
Got extreme PA6-CF with the H2D to….
I Print a lot of it on different printers.
But on this guy it is not printable.