Printing 0.8mm layer heights

[lance-greene 7]

so ive been printing headbands for some 3d printable headphones and since i just got my olsson block in i wanted to try out the 0.8mm nozzle and figured the headband would be a perfect print to test it on.

I initially did a 0.6mm layer height print to test it out which worked fine so i decided to try a 0.8mm print to see how well it would work, it took a few test prints to get the settings right but once i got the settings tuned it printed absolutely beautifully with no feeder skipping.

print times with the stock nozzle were at 90 minutes for the headband and 40 minutes with 0.8 mm layers.

settings used

20 mm/s

0.8mm layer height

2 perimeters

260 degree nozzle temp

120% flow rate

Edited April 14, 2016 by Guest

[DidierKlein 729]

How is the layer bonding?

I'm surprised you managed to print .8mm layers with a .8mm nozzle. I never tried more than half of the nozzle diameter. (My max was .5mm on a 1mm nozzle).

Also why increasing the flow?

[lance-greene 7]

the layer bonding is perfect. i can stretch the headbands out quite far and there is no separation.

the increased flow rate and 260 degree temp is the main reason the layer adhesion is so good. also the super slow print speed helps a lot as well.

i noticed that on the very top layer, some of the perimeters look like they have fully melted together because of the hotter than normal temps i used which is another good indicator of good bonding

Edited April 14, 2016 by Guest