Need help troubleshooting prints

[David_Graves]

I just got into the world of 3d printing about a month ago and am still confused about why most things i make come out with so many problems on them. For some reason i can not get any pint that is spherical or semi-spherical to come out acceptable. The only prints that i have got to be decent are flat and low detail. I have tried to add support to the model but it doesn't help. The pictures linked below shows the main problem i have when i trying to print spherical objects. What should I try and change to fix the problem. Thanks for all the help.

(it wouldn't let me upload the images so i just used puush sorry for the problems)


http://puu.sh/fL5Vb/c69e306c23.jpg

http://puu.sh/fL629/017240db73.jpg


Pinter specs
Leapfrog Creatr Dual Extruder
Print material Micro center black pla
print speed - (on print shown) 1800MM/min
Temp 210c
Bed temp 0c

[curious aardvark]

it's mostly a heat issue.

I used to have similiar issues with spheres - not quite a extreme as that, but the same type problem.

I fitted an active cooling fan and duct setup (just printed off thingiverse) and the problems were immediately solved.

Basically the pla is staying hot and soft, so the layers don't go down cleanly.

If you don't have active cooling try printing 2 or more models at the same time, this extends the time between layers and gives the pla time to set before the next layer is added.

Also what slicer are you using ?

The other thing - which might sound counterintuitive - is you are printing at a very slow speed. 1800mm/m = 30mm/s
Yes that gives the pla time to set - but not if you don't have active cooling, the printhead actually remelts previous layers.

So try upping your speed to 60mm/s 3600mm/m and printing 2 or three models at the same time.
That should give you a much better quality print.

And try this: http://www.thingiverse.com/thing:227481
Only one I could find. Might not give great airflow - but ANY active cooling will really help.
And as long as the fan's on all the time - it should be fine in pla.



There's some weird stuff on that. What resolution did you print at ? Looks really really low.
try printing at 0.2mm.