Topic: So you think you can Print - a-MAZE-'n
First ever installment of the 2n2r5 print challenge.
About the stl:
Filename: Maze.stl
This is a small (~48mm x ~48mm) maze that I threw together quickly. It features .42 mm walls and a bunch of freestanding edges.
~15 minute print on default Solidoodle speeds
What are the challenges?:
Single Walls - Single walled prints require a smooth consistent layers. The walls can easily "collapse" if layers they don't line up properly. Also, corners can give you fits.
Freestanding Ends - These will try to make your print lift off the bed as the plastic cools and contracts toward the side without the wall.
Non-contiguous Lines - This means you will have lots of starts which could mean lots of stringing for those of you still trying to dial in your retract length and temps.
What to do to give yourself the best chance for success:
Take it slow, this print needs precise movements. Overshoot will cause this print to come out looking less than perfect.
Calibrate your flowrate. This is the most important thing IMHO. If your print widths are off, they will show here.
Turn your temps down. You don't need to run at 210C just because you can. When you turn your temps down, you tend to get less strings or blobs. The temps all depend on the filament you are using so experiment a little. Try adjusting the extruder temperature up and down 2-3C at a time to see where you filament is happiest.
Let the bed get warm. This will test even the best beds for corner lifting. I am ashamed to say that my corner lifted a bit on my first attempt at this print.
Retraction... A little goes a long way. .5mm to 1mm should be all you need here. Too much and you will have holes in your walls. Too little and you will be string and blobbing all over the place.
The rest is up to you to figure out. 
EXTRA CREDIT: Bump up those speeds and post your fastest time along with a picture of the corresponding print.
Did I miss something? Post a reply and I will add the info to this post.
Glass bed with QU-BD heat pad upgrade, threadless ballscrew w/ 8mm smooth rod, spectra line belt replacement, lawsy MK5 extruder, Lawsy replacement carriage, E3D hotend, Ramps 1.4 w/ reprap discount controller, DRV8825 drivers, 12v 30A PS, Acrylic case, Overkill Y-idlers, Filament alarm, Extruder fan + more.







