I tried 3D-printing pre-creased origami.

Some complex origami requires hours of carefully pre-creasing paper before the first satisfying fold. I wondered whether I could print the crease pattern directly and skip that preparation.

I tried 3D-printing pre-creased origami.
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The idea was simple

  • I modeled a crease pattern in SolidWorks and created thin regions where the material should fold. The hope was to get the precision of an established pattern without manually making hundreds of creases.
  • A home-sized print bed limited the sheet size, but I could still test whether the basic folding behavior worked.

Lesson: You can test one essential property without reproducing the entire finished object.

The material didn't care about my plan

  • The first printed sheets were too thick and difficult to collapse. Uneven first-layer adhesion made the thin sections inconsistent, and trimming imperfect areas changed the geometry.
  • I washed the bed, revised the print settings and reduced the sheet thickness. Making the base plastic much thinner significantly improved how the pattern folded.

Lesson: Small physical details can dominate the outcome, especially when you're operating at the limits of a material.

Turning the experiment into something else

  • I later tried a folding lamp with a custom lithophane pattern. Working with dense imported meshes caused CAD headaches, and early thicker panels cracked instead of folding.
  • After simplifying the models and reducing the plastic thickness again, I got a miniature folding lamp to collapse successfully. It wasn't a polished retail product, but it answered the question that got me started.

Lesson: One curious experiment can turn into a second, completely different invention.

Print settings, materials and actual costs

  • The main experiment was in SolidWorks on my existing Prusa Mini. The first trials used a 0.05 mm layer height with a thicker two-layer base; bed leveling and inconsistent first-layer adhesion made the material harder to fold than I expected.
  • I tried reducing the sheet to a 0.05 mm base layer with a similarly thin follow-up, and the result folded noticeably better. Later, a custom lithophane lamp failed when the panels were too thick and succeeded after I lowered the plastic thickness again.
  • This was an experiment in printer settings and consumable filament, not a machine purchase made solely for the project. I cannot verify historical grams of material or electricity cost from the archive, so I would rather show the failed and improved parts side by side than pretend to have an exact budget.

Lesson: If you already own the printer, record incremental filament consumption separately from the capital cost of the machine.