Changed some of the settings on my printer and printed Marvin to test results. The left side looks good but the right side has some defects. Any ideas as to what should be tweaked?
Printed at .1mm, 1.75mm PLA at 205C
I would assume you have a cooling fan on one side of the printer. This will cause good cooling on one side and poor on the opposite.
Mark just beat me to it!
That’s a good idea, the cooling fan is on the one side. I should print a mod that wraps around.
Or print two at one time. I did that when I applied for 3D hubs
Looks like it would benefit from extra cooling. Try a desk fan pointed toward that side to improve surface finish. Some print an adaptor and put a more powerful fan on there. Slower speed helps cooling but small detailed prints with overhangs may need som extra love from a powerful fan or slower speed. The print is small so it’s “fast” between layers and the heat can make plastic sag without additional cooling
I was printing this one at 50mm/sec., maybe going down to 40 or even 30 might help, so long as it doesn’t get too hot. I should have also mentioned that my printer is built for 3mm filament, but I’m using 1.75mm. I am putting that filament spec in Cura, and it seems to be producing, excluding this model, good looking detail on prints. I could just point an 80mm fan I rescued from an ATX power supply at the print when it goes slower, hopefully that’ll take care of this type of print deformity.
I’m gonna say lack of cooling too. I have the same problem with my delta and fan from one side only. Also, 205 seems a bit high for PLA. I usually print around 180.
The filament size shouldn’t matter. You really want to add another fan. What printer do you have?
Print two at the same time. I bet you will have much improved results. Also drop the speed a little
Good tip! Print two and print them a ways apart
@Jules_Hoehn Temperature is relative. It depends on the hot end design, speed and actual material. I get great results with Atomic PLA at 215°C. It’s a bad idea to drop temps by 30° unless it is severely overly hot. Drop in steps of 5° maybe, but given the user said cooling is one sided, it’s best to wait until cooling is balanced first.
Agreed. I print all my pla at 210c. It just depends on the brand but I wouldn’t say 205 is too hot
That is interesting, if I print my HB PLA at 190+ I get serious cooling issues.
I’m using a Lulzbot Taz 5, their recommended PLA temperature is 205c and bed at 60c. I have gone as high as 210, but I get bad stringing and worse bridging sag. I’m printing a cylindrical fan shroud now.