February 19, 2022
IIIDMAX / lllDMAX PLA+ Filament
PETG LOWEST FAN
In my experience, print speed is more important for PETG then temperature for good layer bonding. PETG doesn't like fast printing speed. While 45mm/s for normal pieces is quite decent, best printing ( especially bridging ) is around 25mm/s @ 235C ( or for example when printing precise GT2 pulleys ). Lowering print speed reduces the effects of surface tension ( the material in it's molten state right after it leaves the nozzle ) > to observe the effects of this, try extruding a small strand in air and measure it with a caliper... you'll see that the extrusion is always much thicker then the nozzle diameter. While this has limited value for normal layers, it is important for bridging. An even more important value for bridging ( and strength in general ) is Infill/Perimeter overlap ( I use 55% instead of the default 25% ) which makes a really big difference in quality > think of it as the surface onto which a bridge strand can attach itself. You're quite right about howto use the pinion teeth and multiplier adjustment.... I'm actually quite surprised that you took the time to do all these tests and forgot to include speed....
Tuning my settings for the wonderful budget PLA+ from llldmax.com
I got a great deal ($9.99 / kg) on some PLA+ 3d Printing Filament from lllD MAX (or is it IIIDMAX? Even their own shipping emails use the two interchangably). I'm not sponsored by them in any way but I feel very comfortable recommending this filament to anyone who looking to get into 3D printing. When you're starting out, you'll need some cheap filament to tinker around with, and they have a pretty wide selection of colors to choose from. I highly recommend watching for the $9.99/kg sale (you have to buy 10kg to get the deal). The filament came neatly wound on plastic spools and I've been thrilled with the colors.
All my prints were sliced using either Ultimaker Cura v4.13.0 or v4.12.0.
So far I've determined these to be my best settings for printing with this material:
|Print Temp||215C||Can be anywhere from 200C-220C. CNC Kitchen went over the strenght of 3D printing parts with respect to temperature here and concluded that 215C was the best compromise between strenght and quality. I have been very happy at 215C with no stringing|
|Coasting||Enabled||This seemed to eliminate some of the stringing issues in my temperature tower.|