<p>I have a Tevo Tarantula 3D printer.</p>

<p>I'm trying to print a calibration cube. </p>

<p>The slicer is Cura and is set for a 1.75&nbsp;mm filament extruded by a nozzle of 0.4&nbsp;mm, with a heat bed temperature of 60°C and extruder 200°C. </p>

<p>As seen in the image I stopped the printer after a minute, when I noticed that the filament wasn't sticking to the hotbed. </p>

<p><a href="https://i.stack.imgur.com/zdPaw.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/zdPaw.jpg" alt="Photo of filament not adhering the printbed"></a></p>

<p>I've also made other tests, but the result is the same - the upper right part of the print lifts and touches the moving nozzle. </p>

<p>How could I resolve this? Any advice? </p>

I don't have this specific printer but this used to happen to me as well on my D-Bot. The reason being bed not being leveled properly. Ensure that your bed is leveled such that the distance between the nozzle and bed is about 0.2mm after homing. Also coat your bed with something sticky like glue or hairspray. You won't need this if you are using a PEI sheet.