Squiggly Print, not solid

Recently bought a used Lulzbot Prusa Mendel, basically it printed kinda squiggly (see image attached) and not solid.
I'm thinking that either
-the bed was not hot enough (even though it was 110 c)
-a motor rate was too fast
-something with the skeining went wrong (although this was their sample file)

Anyone can point me in the right direction


DISCLAIMER: I am a newbie

It is kind of hard to tell from the photo, but it appears it didnt stick to the bed.

Make sure your Z height is calibrated. You'll want the nozzle just oh-so-little above the bed when it does its first layer (like the distance of two sheets of paper thickness or so).

Also, which sample file were you using? We didn't send any out with the ebay printers.

I recommend installing slic3r from [www.slic3r.org] and generating your own .gcode with that.

Have fun,

-Jeff Moe

What's the build surface? It looks like PET on glass on the photo but it's hard to be sure. Are you printing ABS? I agree that it looks like it didn't stick well. But I don't agree that it has to be much closer to the bed on the first layer than the layer height. I normally print my first layers the same as the layer height with Kapton on aluminum at 120 C to make sure it sticks well. You should try increasing your bed temperature or nozzle temperature. Also, you might need to slow down the feed and flow rate for the first layer: <20 mm/s would be a good place to start.

The glass is covered with PET and it's printing ABS.

I will try calibrating the Z axis and the build surface temperature as well.

can you measure the heatbed temperature?

try to extrude manually about 20-50mm filament to see if your extruder works correct.
i think hardware extruder problem...

ben

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