I have recently given my Prusa i3 a pretty much complete overhaul, the biggest changes being exchanging acrylic frame to a P3Steel frame and the motherboard from a MKS Base to a regular RAMPS 1.4 setup. I am having a very hard time getting filament pushed through the E3Dv6 after this (specifically after changing to the RAMPS). The extruder motor either skips or just wobbled back and forth slowly seemingly without actually trying to extrude anything. I've tried the things that came to mind yesterday in trying to fix this; I've done a number of cold pulls with nylon, it looks like the hot end is sparkling clean. I've messed around with both the tension on the extruder and the voltage of the stepper driver. Disconnecting the bowden and just extruding outside the hotend works fine. The only thing left I can think of that may be the cause is an issue with the hot end, probably heat related. When I seem to have dialed the extruder and stepper driver in ok-ish, the extruder manages to push maybe 3mm of filament before it skips, and then that pattern repeats. Any ideas of what in the hot end might cause this? Or maybe any ideas for what else might be the issue?