Original Print Settings / Travel Speed
I'm using Prusa Slicer 292 with my Core One
In the original print settings the Travel Speed is set to 350mm/s which is way to fast and results in Layer Shifting (at least with some of my .stl files)
Is that a bug or a feature? 😉 Has anybody the same issue?
Best Answer by Raaz:
The default values are very aggressive, yes. But layer shifts shouldn't happen at all, the Core One can go way faster before running into issues, but becomes very loud and it just doesn't feel good to push faster.
The most common causes of layer shifts to my knowledge, are:
- custom extra settings like "Avoid crossing perimeters" etc. They have bugs like trying to do a sharp turn without slowing down first, having an extreme amount of tiny move commands at some spots, causing the board getting too slow compared to the travel speed and a a few other issues. You can use all these settings, but probably only below 200 mm/s.
- too low ramping lift angle! Enabling "steeper ramp before obstacles" seems to help a lot. Without it, you might only have 0.1 mm clearance, when already being at 350 mm/s and if any part of your print warped the tiniest bit, it'll crash into it. I'm not sure how the crash detection works, but I had layer shifts, without it triggering.
Also, don't use Grid infill or any other "self crossing" infill type at such speeds. You'll either get a bad noise from the rubbing of the nozzle, sand down your nozzle too quickly or get layer shifts.
Gyroid isn't great at high speeds though, since it shakes the whole printer and can't be printed at full speed. I'd advise, if possible, to use more perimeters and to see the infill only as weight or surface to print on, but not for stability at all.
Honeycomb can be great as a trade off due to doubled walls and no vertical gaps, but it's not really fast. Rectangular is great for speed. Not self-crossing, straight lines, but weak layer to layer adhesion.
RE: Original Print Settings / Travel Speed
I didn't have a layer shift but the default profile are too aggressive for my taste, with very high acceleration and speed.
I wish there would be a simple way to trade speed for quality and tranquility.
.
RE: Original Print Settings / Travel Speed
The default values are very aggressive, yes. But layer shifts shouldn't happen at all, the Core One can go way faster before running into issues, but becomes very loud and it just doesn't feel good to push faster.
The most common causes of layer shifts to my knowledge, are:
- custom extra settings like "Avoid crossing perimeters" etc. They have bugs like trying to do a sharp turn without slowing down first, having an extreme amount of tiny move commands at some spots, causing the board getting too slow compared to the travel speed and a a few other issues. You can use all these settings, but probably only below 200 mm/s.
- too low ramping lift angle! Enabling "steeper ramp before obstacles" seems to help a lot. Without it, you might only have 0.1 mm clearance, when already being at 350 mm/s and if any part of your print warped the tiniest bit, it'll crash into it. I'm not sure how the crash detection works, but I had layer shifts, without it triggering.
Also, don't use Grid infill or any other "self crossing" infill type at such speeds. You'll either get a bad noise from the rubbing of the nozzle, sand down your nozzle too quickly or get layer shifts.
Gyroid isn't great at high speeds though, since it shakes the whole printer and can't be printed at full speed. I'd advise, if possible, to use more perimeters and to see the infill only as weight or surface to print on, but not for stability at all.
Honeycomb can be great as a trade off due to doubled walls and no vertical gaps, but it's not really fast. Rectangular is great for speed. Not self-crossing, straight lines, but weak layer to layer adhesion.
RE: Original Print Settings / Travel Speed
Reducing travel speed to 130mm fixed it for me - I'm printing plane parts from SoarKraft - pretty tricky stuff, still fighting with z-bending when printing wing parts. I will test different layer hights ...