Hi Everyone,
I am having some issues with prints using an Ultimaker 3. In the last few months I have began to notice that my prints are not as consistent in their quality and that a majority of them have holes in the walls. We use Ultimaker PLA in primarily black but also in other colors, and this issue seems to be consistent across the different colors and even with brand new spools. I have attached an image to give you an idea of the issue. I have also been reading some other posts that suggest this may be due to filament retraction when hopping, such that when it starts to print a new layer there is a lack of filament in the tip to start printing. Any relevance for this here?
Additionally, I was wondering if anyone had suggestions or can lead me in the right direction on how to obtain high-quality water-tight prints. We are a cancer biology lab and print a variety of models for culturing cells and have recently been having issues with some of our prints leaking, or with the liquid media being absorbed into the meshwork of the prints. We have only used PLA and typically print using the extra fine profile in Cura. Any tips on materials or printer settings that could help in printing more "solid" and water-tight models that could help alleviate any of these issues would be greatly appreciated.
Thanks for you help in advance!