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My Replicator 2X is 7 month old. It is a replacement by Makerbot for the broken one I had previously. Both printers have the same Mk7 extruder with the spring lever.
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the original feeder isn’t adjustable. It’s just a spring between a fixed point and the lever. The only way is by replacing the spring with a stronger one
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I have the same problems on my Replicator 2X. The reason can be many things: bad leveling extruder gear needs to be cleaned hot end temperature to low or to high filament quality → amount of non-plastic particles in the filament or just dust on the filament tend to burn off and that lead to a clog…
