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Rat Rig Community [Unofficial]•3y ago•

18 replies

verbal-lime

Large ABS Print Issues

Good Morning! I was hoping to get some advice on an issue I've been having with a print. The machine is new, and does great on small parts, but has failed every time I've tried to print this larger one. The supports/infill extrusions have poor layer adhesion and on occasion exhibit a "pulsing" behavior. Overhangs as well (long sides of print). It can print a benchy fine, and other test prints fine, it's just the large prints. First layer adhesion is fantastic with no warping and good extrusion adhesion between lines.

Info about the setup:
- Nozzle 0.8, layer height 0.45
- ABS Hatchbox Filament
- Infill 55%
- Temp. 215C (first layer 220C)
- Bed temp 100C (first layer 110C)
- Layer height limits 0.4-0.55mm
- LGX Lite

The speed/acc. has been slowed down as well as I noticed some of the filament wasn't cooling enough and following the nozzle afterwards. I have tried turning the fan on (10%-30%) which does help between parameter layers, but causes warping between infill and support lines. (pic attached)