I’m looking for some advice on how to bond a post-processed resin printed piece to a large PLA print. I assume my options are either superglue or maybe brushing resin onto the PLA, attaching the resin print, and hitting it with a UV light?

Is there a better way? Thanks!

  • nous@programming.devEnglish
    0·
    4 months ago

    Perhaps the roughing up of the area permits for micro-gaps which allow for the two to better stick?

    I think it is more to do with increased surface area - more molecules of the glue are in contact with the part.

    • cashmaggot@piefed.socialAfaraf
      0·
      4 months ago

      Seems so strange in my head, that you’re removing body yet the surface area is increased? But I actually truly don’t know the science (and actually did not look it up because it’s pretty irrelevant to me). But I do like to look stuff up. I think I just fell down the pie-hole and didn’t take the time. Maybe it’s like a razor, where as you sharpen it and the surface area changes the quality of the shave?

      Eh, now I really do have to look into it. Cause clearly you’re saying what it is - I just gotta figure out how you subtract material and it increases surface area. To the internet~

      Tada:
      Plastic Bonding 101
      “It takes the surface from a flat surface to a rough surface. So what was previously flat, now has peaks and troughs. In most cases, an increased available bonding area leads to a stronger joint.”