FDM Cube

Support/Discussion on Warr1024's Small Projects Discord

Printability Validation

Suspected printability issues (bad bridges or overhangs, things that would require extra support material) will be automatically detected and highlighted in crimson. Minimizing these areas will lead to prints that require less support material and come out with better quality.

Note that the printability validation is "conservative" in some cases and does not allow things that would actually work fine, like bridges made out of wedge shapes, while a full slicer may still be able to find a strategy to print these. This is not necessarily an error.

How to Use

• Install the game, along with the recommended mods:
  • WorldEdit
  • Meshport
• Start a world.
  • Host a server if you want to build collaboratively.
  • It's recommended to add fly,fast,noclip to default privileges, and/or grant them to each person who is helping build.
  • Revoking interact privs for spectators should also work.
• Build things using the provided materials.
  • You can choose any scale you want for your models (within the capabilities of the engine and your computer).
  • Nodes that turn crimson are warning you about printability issues where your slicer will need to generate extra support (costs more time, effort, materials to print) or cause other problems elsewhere (sagging bridges or overhangs) so try to minimize them.
• Export your model.
  • Use WorldEdit to move your model up off the printbed (see Known Issues).
  • Select you model, and at least 1 node of open air on each face of it, using meshport, and export it.
• Slice and print.
  • Load the exported OBJ file into your slicer, scale it to the size you want, load your settings, and send it off to your printer.

Known Issues

Meshport Bottom Surfaces

If exporting a model that's built directly on the print bed, Meshport will not include the bottom surfaces in the model, causing it to break badly in some slicers. Use WorldEdit to move the entire model up off the bed before exporting, and include 1 node of airspace on each of the 6 faces around the model to ensure it's fully closed.

When using PrusaSlicer, if you don't correct for this and leave the bottom faces of the model unclosed, as long as the model is oriented correctly, it seems like it doesn't usually actually create problems with slicing, even though it shows visible warnings.