I just got into 3D printing with an Ender-3 Pro. The test dog printed great, some custom small/thin objects printed good, and now I tried my first big object.
Designed in Tinkercad (link to my (updated) design), exported to .stl, sliced and printed using Cura 4.5.0 with the default 0.2 mm profile (3 layers wall thickness) and 100% infill (for strength), with the extruder at 200 °C and bed at 50 °C. Ambient temperature had been 25-ish °C.
The filament is a brand-new Spectrum Premium PLA (Arctic White). On its box it says it prints at 185-215 °C.
So I got this:
The top (thinner) sections look OK-ish (there are some visible lines, but meh), but the transition from the bottom sections (thick) to the top has terrible layer separation and warping problems. One side of the base is actually barely holding together when I'm holding it. There is also a smaller problem mid-way at that side of the base, but it's not catastrophic.
- Why did that happen? What did I do wrong? How can I print it again and get it nice and strong?
2) I have a handheld "3D print pen". If I use it to fill the gaps manually, how strong will the part be? The part is meant to "hug" the iPad charging port, so that you can hold the iPad in the bed while charging, without pressing the cable on your body and damaging it. nvm that
Using wall thickness of 4, layer height 0.16 mm, 30% infill and 205 °C extruder, this is my (successful) result.
I also repaired that broken part. Did it for the aesthetics, but it feels quite strong.