My R1+ printer will extrude material no problem manually but when I go to print, it prints out very fine lines of material and then it stops completely about 10-15 minutes in. I put a black mark on the filament and it never moves during printing. Here is what I've done so far to try to fix the problem: Make sure filament diameter setting is set at 1.75 in Cura and MatterControl Made sure the fan on the silver heat sink is working on the E3D V6 setup. The silver heat sink is NOT hot during printing. Adjusted temperatures up and down 20 degrees on both ABS and PLA I did do a extrusion calibration and it was off by about 12% (under), so I made the adjustment and now it is perfect measuring with digital calipers when I extrude 100 mm. Loosened and tightened the two filament feed screws at the the top of the assembly where the filament initially feeds in. When I go to restart it I can get the filament to back out, but I notice that the filament has a hard indentation a 2-3 inches up from the end. It is getting pinched for some reason. There is no overflow of material between the hot end and heat sink connection. The whole E3D assembly is tight and secure. With the E3D V6 install I did change the firmware to Robo3dR1V2_M8_E3D These are my values when I enter in G29: <-Bed x: 15.00 y: 20.00 z: -0.55 <-Bed x: 107.00 y: 20.00 z: -0.06 <-Bed x: 199.00 y: 20.00 z: 0.22 <-Bed x: 200.00 y: 130.00 z: 0.18 <-Bed x: 108.00 y: 130.00 z: -0.01 <-Bed x: 16.00 y: 130.00 z: -0.54 <-Bed x: 15.00 y: 240.00 z: -0.35 <-Bed x: 107.00 y: 240.00 z: 0.05 <-Bed x: 199.00 y: 240.00 z: 0.31 I've learned a lot about 3d printers in that I've spent at least a few hours on this, but I would like to get this resolved soon. Once again I have the R1+. Thank you.