I’ve been playing around with vase mode.
I have been using a .4mm nozzle and some Zyltech silk pla filament.
The prints are coming out great, but they are very weak. Almost so fragile that the slightest squeeze causes layers to delaminate. Is it possible to get decent strength in vase mode - that is to say, enough strength to be lightly handled without significant concern of breaking it? Are my expectations too high?
After toying around with it for a bit, the strongest print I’ve gotten so far was:
.8mm line width - I’ve checked this on my latest print - getting .78-.79mm wall thickness with the .4mm nozzle by using the Bambu PLA profile and dropping the speeds down to 30mm/s for outer wall and manually raising the print temp to ~235. Can’t really seem to get any more than .8mm out of the .4mm nozzle, though it should theoretically be possible by adjusting an extrusion multiplier such as the one in cura (flow rate), but I don’t see a similar setting in studio. This seems to be analogous to the max volumetric speed in Studio, but it doesn’t seem like I can tell the printer that for a certain print I want the flow rate to be 125%, for example. I don’t know how the “max” rate plays into the print job under normal circumstances. Regardless, even with these settings, with a pound or two of pressure the print makes some cracking sounds and begins to open up between the layers.
I’m looking at getting the .6 and .8 nozzles which, if my testing with the .4mm nozzle is accurate, I should be able to hit at least 1.2mm and 1.6mm thick walls respectively with the settings I’ve tested. Will this improve vase strength? What else do you guys do to enhance the layer adhesion in these parts? Is it wise to disable cooling in spiral vase mode - has anyone tried this?
Clearly these prints aren’t going to be very strong in general, but I am interested to learn how strong they can be in spiral vase mode, and what you guys are using as optimal settings to get decent spiral vase prints. Anyone care to share?