<p>I bought an Ender 3, and after assembling it following the description and some YouTube videos and after correct leveling, I printed the test dog gcode on the micro SD card that comes with the printer. PLA 1.75&nbsp;mm. Attached the image of the printing result. What went wrong? I didn't change or modify any settings what so ever, I just assembled the printer, and printed the test dog. Please help me, I am a beginner in 3D printing. </p>

<p><a href="https://i.stack.imgur.com/CisP7.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/CisP7.jpg" alt="enter image description here"></a></p>

[{'answer_id': 8394, 'author': 'Trish', 'author_id': 8884, 'author_profile': 'https://3dprinting.stackexchange.com/users/8884', 'pm_score': 3, 'selected': True, 'text': '<p>This is an extreme case of repeated layer shifting in the Y-carriage, which can come from some pieces related to the carriage. Luckily for you, they are easily fixable.</p>\n\n<ul>\n<li>The Ender3 Y-carriage has an eccentric nut to adjust the force the wheels press down on the V-slot. Adjust it (most likely loosen them a little) so it moves smoothly when the motors are off, but keep it tight enough so it does not tilt.</li>\n<li>The belt in the Y-carriage might be loose. Tighten it till it gives a nice ring when struck.</li>\n<li>Check if the gear on the Y-motor is tightened down correctly. If it slips or wriggles, the backlash results in the layers shifting.</li>\n<li>The Ender3 has the cables to the gantry and the bed running across each other and quite open. Make sure nothing can be caught in them.</li>\n<li>Make sure the gantry is parallel to the bed and stays so in moving upwards - adjust the wheels as needed. \n\n<ul>\n<li>To ensure this, make sure the lead screw is orthogonal to the gantry. Level the bed afterwards. You might need to adjust the motor mount, possibly by shimming.</li>\n</ul></li>\n</ul>\n'}, {'answer_id': 8403, 'author': 'Levi Giesbrecht', 'author_id': 14700, 'author_profile': 'https://3dprinting.stackexchange.com/users/14700', 'pm_score': 0, 'selected': False, 'text': "<p>Ender 3's have a reputation to be not quite square on the base. Make sure that your X, Y, and X axis' are all perfectly squared.</p>\n"}]
['https://3dprinting.stackexchange.com/questions/8388', 'https://3dprinting.stackexchange.com', 'https://3dprinting.stackexchange.com/users/14698/']