I’m trying to print @Daniel_Noree tires for the #openrc f1 and I’m suffering with the flexible filament.
In the bottom side (2nd picture) (the one that sticks to the bed) I’ve some problems with layer adhesion (the tire has a small fillet where the layer adhesion fails). Also, the top layers (1st picture) are not filling the whole surface.
The settings for the print in the pics are 250ºC hotend, no extrusion multiplier, 0.2mm layer height, 80 mm/s base speed, 3 top/bottom layers, 2 perimeters and 15% infill.
I’m going to make a test print in a couple of days with 5 top/bottom layers, 4 perimeters and 50% infill.
I’ve also changed the config so the extruder is not allowed to perform travel moves outside of the part, so, I hope having a lot less of strings due to retraction.
Top layer looks like either underextrusion or not enough solid layers. Try atleast 1mm for the top and bottom layers and see if that fixes it. Not sure about layer adhesion, but from the looks of the second picture, it seems to be more of an issue of that filet not being cooled quick enough as it’s being printed. Could even just be the nature of flexible filaments, I don’t have experience with them.
I think you need to print much slower, like 20 mm/s. If you have a bowden printer like me than it is even possible you must go as low a 10 mm/s to get good results.
Tenes que bajarle un poco la temperatura a 215 aprox. fijate que no se licue tanto porque se escurre de la última capa impresa, si la temperatura es muy alta. Con respecto al relleno, a medida que subis el porcentaje te queda más dura y pesada (algo puse en mi sitio al respecto). Para la adherencia use cinta gris sobre la cama y quedo tan pegada que la tuve que lijar.
@Eclsnowman I think the manufacturer of the pla recommends to use 1.15 extrusion multiplier… I have to check the official profile for cura and move it to simplify 3D, but take notes of your settings. Thanks!
