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FIXED! Long story short; in my first run after assembly I noticed that the extruder had the polarity inverted, so I "fixed it" in the EEPROM using negative parameters in the extruder speed and accel, that made the plastic go as it should... but somehow it get all the steppers all jumpy. This time I ...

When you said it works perfectly on a dry run the first thing that popped into my head was the power supply. I believe in Dry Run the Hotend and heating bed are inactive and not drawing any current. This makes me believe the issue is the power supply is incapable of handling the current draw when ...

shielded all the wires, and it´s still doing it, however it does run perfectly smooth on dry run

Make sure your end stop wires aren't routed next to your stepper motor wires, when unshielded, minimizing the amount those stepper motor wires are with others (even each other) is a good idea. Another thing to try is to turn your heaters off and do a dry/test run with repetier host to make sure the ...

here´s a video I took of one of the steppers doing a circular print code

http://youtu.be/Ivj5k-LT5Lw

Check your motor current settings in your configuration.h file (#define MOTOR_CURRENT {175,175,175,222}) You may have to adjust them. (Increase current but keep around 200 or so, less if you can but it sounds like they need increased.) The first three are the X Y Z axis the fourth is the extruder ...

Check the connectors from the motors to the Rambo. The crimps have to be done perfectly and must fit fully into the connectors. See the link below that discusses how the connectors should look: http://forum.seemecnc.com/viewtopic.php?f=37&t=2335&p=16666#p16666 Thanks for the response, I just ...

Hi everyone, my name is Javier, and (as you see in the topic title) Im from Argentina (south south south america). Im 26, industrial designer and spent the last few days putting my new rostock together, what brings me to the Troubleshooting section... http://forum.seemecnc.com/viewtopic.php?f=37&t ...

hi, just finished assemblying my rostock max, and im having some issues: As long as I print a straight line everything goes fine, but when trying to print a corner (for example the corners in the calibration cube) the motors start going all jumpy and making the hole machine move, wich leads to a ...