Solid tips! Cooling is very important. Keep in mind that some filaments need less cooling fan or no cooling fan for most layers. Slicers allow you to turn the fan on specifically for overhangs, so tuning per overhang amount is a great way to get better overhangs without reducing layer adhesion drastically.
I've been printing some functional parts (edf impellers) with blades that have overhangs of up to 75 degrees. Can't use support due to surface finish requirements. It's really important to use as low of a layer height as possible. I'm printing at 0.08mm, 100% fan, 50mm/s max for outer walls. The rest of the print is at 300mm/s. A good tip is to use high speed pla, as it has a lower print temp, so cools quicker but still gives good layer adhesion as the previous layer will melt slightly as the next is layed down. Also make sure outer walls are printed first, this makes a big difference.
Nice.
Solid tips! Cooling is very important. Keep in mind that some filaments need less cooling fan or no cooling fan for most layers. Slicers allow you to turn the fan on specifically for overhangs, so tuning per overhang amount is a great way to get better overhangs without reducing layer adhesion drastically.
Good point 😆 sometimes I just get caught up in the world of PLA 🙃
Just bought my first 3D printer. This is a great tutorial on how the speed, cooling, and layer height can affect the final product!
Aww man that means a lot :) thanks! Glad it was helpful :)
I've been printing some functional parts (edf impellers) with blades that have overhangs of up to 75 degrees. Can't use support due to surface finish requirements. It's really important to use as low of a layer height as possible. I'm printing at 0.08mm, 100% fan, 50mm/s max for outer walls. The rest of the print is at 300mm/s. A good tip is to use high speed pla, as it has a lower print temp, so cools quicker but still gives good layer adhesion as the previous layer will melt slightly as the next is layed down. Also make sure outer walls are printed first, this makes a big difference.
Awesome! Thanks for the tips 😁