Z Axis movement problem…

Hello out there:
I just got this new BCN3D+ 3D printer. It works fine and I already made the best objects I could imagine. Apart from that I do have I slightly annoying problem.

When I start a print, it starts doing the first layer but each time it moves up a layer, the Z Axis seems to move just not enough to compensate the filament. After the third layer, you can see from the picture, the nozzle rips the object from the base. When examining the print I managed to see the nozzle below the surface it is supposed to print.
It would make me waste a ton less material if I could manage to fix that problem.
Thank you in advance.


Edited 2 time(s). Last edit at 05/17/2016 03:04PM by Joubidou99.

Hello again. By looking at a other person's post, the problem might be that my Z Axis is under powered. It seems to be my problem but how can I solve this problem? Thanks again

This could be a couple different things. You may be extruding too much plastic but your layer height isn't high enough. I suggest you run your hardware specs through this calculator and try and see if that matches your settings.

lead screw specs
[prusaprinters.org]

layer height
[prusaprinters.org]

Also, I looked up your printer. Looks like you run on a RAMPS board, so check your stepper drives and make sure the right amount of current is being sent to your stepper motors

Thank you very much for answering.
I went back to the user manual and it talked about the polulu. Lets hop it will help.

Thanks so much I think it is fixed: