Need help with prints

[MakeMyIdeas]

hi,

im new to all this and im trying to print some small 10mm x 10mm cube with a 10mm diameter ube on top but getting bad prints can some one tell me why.


IMAG0769.jpgIMAG0768.jpg

as you can see their not printing full circles

[curious aardvark]

looks like your're printintg too hot, too fast or most likely both.

You know it says you can print at up 150mm a second ? It's lying :-)

Fastest I ever print is 75mm/s - but for small things you need to drop it down to somewhere between 30-50mms. Also if you orint 2 at once it allows cooling between layers.

Also you need to add active cooling to your printer.

This bracket: http://www.thingiverse.com/thing:350649
this duct: http://www.thingiverse.com/thing:295317

some thin wire and a 24volt 40mm computer fan.