Simple print keeps failing
Grabbed this simple narwhal design and trying to print it for my daughter: https://www.thingiverse.com/thing:1741770
I have MK3S+ - brand new. I have calibrated and run all the self-diagnostics, etc. I was able to print the batman design that comes on the flash drive fine. I'm using the Prusa PLA filament that shipped with the printer.
I loaded the STL into slicer, and selected my printer, and exported to .gcode. Did not change anything else about the file.
I get about an inch or so into the print and it just starts spewing out stranded mess of filament. I've tried twice. Any recommendations? Is there something wrong with the file?
Best Answer by JoanTabb:
There doesn't seem to be anything immediately obvious in the way of errors apart from it loading in an odd pose
If this is how you tried t print it,
did you get about this far
before it started spewing out spaghetti?
If so, I expect it's because you didn't use supports
Looking at the original model it's intended to print 
with the Pectoral fins on the build plate and with supports (you can see the layer lines on the model)
Maybe like this
this is perhaps a bit excessive it's the default from the bed only solution...
the Blue bits (below) show where Prusa Slicer thinks you really need support
you could try doing this in the current full release 2.2.0
but it would be easier in the Prusa Slicer 2.3.0 Release candidate 3 version using the paint on supports
regards Joan
regards Joan
RE: Simple print keeps failing
There doesn't seem to be anything immediately obvious in the way of errors apart from it loading in an odd pose
If this is how you tried t print it,
did you get about this far
before it started spewing out spaghetti?
If so, I expect it's because you didn't use supports
Looking at the original model it's intended to print
with the Pectoral fins on the build plate and with supports (you can see the layer lines on the model)
Maybe like this
this is perhaps a bit excessive it's the default from the bed only solution...
the Blue bits (below) show where Prusa Slicer thinks you really need support
you could try doing this in the current full release 2.2.0
but it would be easier in the Prusa Slicer 2.3.0 Release candidate 3 version using the paint on supports
regards Joan
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
RE: Simple print keeps failing
Hi Joan,
You are exactly right where it started to fail and spew spaghetti -- where you highlighted in your pic above.
Should I try rotating the model and then slicing?
RE: Simple print keeps failing
@zenocon
yes
then any support marks will be underneath
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
RE: Simple print keeps failing
Weight matters. Try printing in .1 resolution in the orientation it is meant to be printed in (belly down). For FFM, you will need supports to print this poor Gnarwal. That's it! Bill it as a Gnarwal - lumpy extrusions on the bottom.