Geeetech

Hello, After about two weeks of hair pulling frustration with the stepper motors stuttering going up on the Z axis, I swapped stepper motors, swapped plugs (left and right), sanded down the threaded rods and Z and Y axis smooth bar (not very smooth in original form), checked for bent rods, loosened ...

Thank you
One tip I can share is I had an extruder nozzle blockage and to remedy this I heated the nozzle up to a cherry red with a Chef's torch and poked a high E guitar string down it.
Fixed it up like a champion

Hello all, just wanted to share I've had my i3 A pro for a week now and have it dialed in and running superbly.
Once we had updated the firmware with the PI3A Pro(for the upgraded kit using lead screw) and loosened up the Z axis, it's been running flawless.
Very impressed