Hello folks, I’m hoping to call upon the vast knowledge of the printers at the Space. I’m still new and learning and I’ve had a few failures that I am hoping to resolve. I printed these with .20 settings, but I’ve come to find out that some other settings may have been changed and I’m not, by any means, an expert in Kisslicer. Can anyone give me advice on settings to correct the issues below?
It appears the layers are not adhering to one another. I printed this same handle this past weekend without this issue, so it’s either a setting or an issue with the printer itself. The grey handled failed in the same place. Any help/advice would be appreciated. Thanks.
I’ve used the PolyPrinters / KISSlicer for more than a year and I don’t know what “with .20 settings” means. Anyone with less experience is equally unlikely to know what that means. Our not understanding dramatically reduces the number of people who could help you.
Thanks for the reply. I am talking about the extrusion width when I mention .20 settings. The info about the default will help quite a bit. I will give that a shot before doing it next time.
It is possible that due to the organic look to the model, there might be a thin point in the wall thickness at that point.
you might consider looking at the model + paths view (checkboxes at the top of the screen) and scroll through the layers using the up/down scrollbar to that point to see if there is an inflection in the model design which might account for the weakness.
You might also up the infill density or increase the skin thickness, both of which will reduce empty space between the walls.
Filament Issue
If not using DMS filament, especially if using cheap/noname filament, the filament might not consistently be 1.75mm, leading to slight underextrusion. You can:
measure the filament with a micrometer at several points and adjust the Diameter in the “Matl” (material) tab
Print out a 20mm calibration cube at 100% infill, and look to see if the top comes out concave (underextruded), convex (overextruded), or flat (just right). Adjust the Diameter and reprint until happy with result.
Just try dropping the Diameter slightly (to, say, 1.7mm) and reslice/reprint. This will force more filament per layer, but can lead to parts being knocked off the platform if carried too far.
_Note: name-brand filament (PolyPrinter, Inland, Hatchbox, et al) have pretty good quality control and are unlikely to be too thin. Filament purchased for cheap off of eBay or Amazon might be recycled and as a result have less adhesion, be more brittle, have more variation in diameter, etc.
FWIW, black filament is the most likely to be recycled as the black pigment hides the original color._
Thanks a bunch for this info, I will try the calibration cube and see what happens. I am using Inland as far as the filament goes, but I will try changing to another color to see if that helps as well.
Just throwing a few things out there. Not familiar with Kissclicer so things might be worded just a bit differently but hopefully some of this helps.
I would make sure you are printing with at least three shells. That is… three perimeter lines before the infill starts for the part.
Looking at your print, you look to be printing quickly. The walls are a bit messy and that is usually cause by the head swinging around to quickly. Slow your print speed down and it will allow a bit of extra time for the layers to adhere before they get passed over by the hotend again.
The nozzle on the Polyprinter (according to their site) are .35mm this is what your extrusion width should be set to. There is almost never a reason extrusion width shouldn’t match the nozzle diameter.
Extrustion height or layer height should be set to .2mm for a medium (read good) quality print.
Last, you might look at your infill percentage. If the part is going to be stressed, I recommend 70-80% infill. I have found 100% to cause issues some times. If there is little stress on the part, use 10-30% infill.
I really need to get familiar more with Kissclicer. I will put that on the to do list.
Went in today,defaulted the settings and tossed in the print again and it came out great without issues. Looks like it’s something I’ll be getting in the habit of doing.
