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New AERO not extruding

I bought an Aero to replace the stock one on my Wanhao i3 back in November, but just recently (~ a month) got the chance to put it on. I'm running Smoothieware on a MKS SBASE 1.3 board.

I'm having two problems. First, when feeding in a piece of filament, it extrudes just a few mm then just stops and clicks. The extruder gear itself just stops moving, so it's not just sitting there grinding into the filament. I can push filament thru just fine when pulling back the lever and disengaging the gear. When removing the hotend assembly (hotend, heat sink), and running filament thru, it does just fine; no problems with the extruder gear.

Second, at random times, all the motors will just stop working. Can't move them at all. The only way to get them working again is to power cycle the system. This started immediately after putting the Aero on and testing it.

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It sounds like the motor current needs adjusting - do you know what it's currently set at?

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Yeah, that did it. I had the current for the extruder motor set at 1.4. I bumped it up to 1.5 and found that while it did the same thing, I could turn the black plastic gear and, in giving it a little push to start, the gear would start turning (at 1.4, I couldn't turn any of the gears). I bumped it up to 1.75 and it started extruding perfectly.

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Christopher Jones will be eternally grateful.
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