The top black knob is moving : First layer adhesion

The top black knob is moving : First layer adhesion  

Clara Kim
Active Member

I tighten the black printed knob at the top of the tower. But it is still  moving printing platform. So It cannot reach an optimal position and the first layer won’t stick.

I already talk to PRUSA chatting professional agent Mr. Douglas. And he thought that is faluty part.

I screwed the too knob bolt and assembled perfectly.


Please check my video and tell me whatam I supposed to do.


Hopefully I would like to do happy printing ASAP.





Do everything in Love. 1 Corinthians 16:14...
Posted : 03/12/2019 3:05 am
Veteran Member Moderator

Good afternoon Kim,

there is a small clamp screw on the right hand side of the aluminium piece below the black knob,

when you do the configuration process, you tighten this screw to hold the bed securing components in place.

try tightening it and see if the black knob stops moving!


regards Joan

I try to make safe suggestions,You should understand the context and ensure you are happy that they are safe before attempting to apply my suggestions, what you do, is YOUR responsibility. Location Halifax UK...
Posted : 03/12/2019 12:26 pm

Please Login or Register