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prusa i3 mega 2560 ramps 1.4 a4988

Posted by yamaha07dwc 
prusa i3 mega 2560 ramps 1.4 a4988
February 27, 2014 01:21PM
I am having problems getting my steppers to move I they will just jerk or vibrate I realized I did not have the microstep jumpers in but when I placed them in still no change im running marlin pronterface mega 2560 ramps 1.4 and a4988 drivers is their something I could be missing in the firmware or on the ramps board ive tried 5 different drivers and all I kno to do this is my first printer build and im sorry if I sound stupid lol but can anyone please help me
Re: prusa i3 mega 2560 ramps 1.4 a4988
February 27, 2014 02:47PM
Have you set the current on the drivers properly? Have you set reasonable speed and acceleration limits in your firmware? Have you properly calibrated the steps/mm for each axis?


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Re: prusa i3 mega 2560 ramps 1.4 a4988
February 27, 2014 04:38PM
Better yet, are your wires correct? If they are not wired correctly, the motor will just jiggle in place.


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