ynagersheth 0 Posted September 28, 2017 in Cover seam lines after joining PLA parts Hi guys! How do you cover/hide the seam lines after joining PLA parts with super glue? Thanks! Share this post Link to post Share on other sites
Dim3nsioneer 358 Posted September 28, 2017 in Cover seam lines after joining PLA parts Maybe some sanding? Share this post Link to post Share on other sites
geert_2 149 Posted September 29, 2017 in Cover seam lines after joining PLA parts Or split the model in such a way that the seam lines sit in a natural indentation or other dimensional change of the model. Or create an indentation or decoration to hide it. So it becomes a "feature" rather than a defect. This may of course not always be possible. Share this post Link to post Share on other sites
ynagersheth 0 Posted September 30, 2017 in Cover seam lines after joining PLA parts Or split the model in such a way that the seam lines sit in a natural indentation or other dimensional change of the model. Or create an indentation or decoration to hide it. So it becomes a "feature" rather than a defect. This may of course not always be possible. Have you guys tried jb weld plastic repair putty? Or plastruck weld? Thanks! Share this post Link to post Share on other sites
geert_2 149 Posted October 2, 2017 in Cover seam lines after joining PLA parts Have you guys tried jb weld plastic repair putty? Or plastruck weld? No I haven't. I only use cyanoacrylate glue, which works very well. If I have to pull parts off again, I often tear the PLA apart, not the glue. I did try "rotational friction welding": put a piece of filament in a Dremel tool, and then at high speed rotate that along the seam line, so they are melted together. This gives a very strong bond, it's all molten plastic. But it is also terribly ugly, and requires huge amounts of post-processing. If I would be printing art and statues, I would try two-component glue and add fine sand as a filler, to pour into the model to give it additional strength and weight. Instead of making an indentation at the seam lines, you could also try a protrusion (on both parts): after glueing you can then cut off or sand off that protrusion, until it is flat with the surroundings. This might be easier than trying to fill up gaps, and might result in a smoother seam line in some cases? Might be worth trying? Share this post Link to post Share on other sites
ynagersheth 0 Posted October 2, 2017 in Cover seam lines after joining PLA parts Thanks for the suggestions. I am actually planning on doing lost pla process and wanted to cover the seam lines of the component I joined. I'll try the CA glue. The friction welding worked but post processing is a pain. Thanks! Share this post Link to post Share on other sites
