Hi everyone,
I’ve spent the past few days experimenting with my H2D and have discovered some effective strategies for working with PLA/PETG supports. I’d like to share my insights and also gather your suggestions for further improving the print quality.
Firstly, using PLA as an interface layer for supports has proven to be incredibly effective and has truly transformed the quality of my supported areas, which now appear flawlessly smooth. However, I’ve encountered some challenges especially with tree supports. The issue arises from the minimal contact points at the tips of the tree supports, where PLA/PETG struggles to adhere sufficiently to the underlying layers. To address this, I recommend using standard supports with a reduced base pattern spacing. This adjustment increases the contact area, enhancing the bond between PLA and PETG. Moreover, opting for concentric patterns yields a very appealing surface finish. So these are my current settings:
Additionally, I’ve been experimenting with using different materials for the raft layer. For instance, utilizing PETG for a raft beneath PolyLite PC significantly simplifies the printing process. Typically, PC requires high bed temperatures and an extensive use of glue stick to adhere properly to a PEI surface. By employing a PETG raft, I managed to print at a lower bed temperature of 80°C. Once cooled, the PETG raft could be easily peeled off and no warping of the part. This technique should also be applicable for printing materials like ASA and ABS using a PETG/PLA raft. This approach not only makes bed adhesion better but also conserves energy by allowing for lower bed temperatures.
I found a helpful video on this topic which further elaborates on the benefits and techniques of using different materials for rafts and supports. I believe it could be beneficial for everyone here.
Hope to get some feedback and tweak my settings further.