I use a troodon printer with direct drive. Just upgraded hot end to Copperhead. Prints are turning out great except for open z seam. This is a new problem I didn’t have with V6.
Not sure how to address this issue. Any help would be appreciated.
I’m no expert but it looks like you are using Linear Advance and the K factor needs to be adjusted.
It look like the infill speed is pretty high: the top surface is not perfect. Adjusting the K factor would help: I’d say it is too high.