Very large objects can also be produced using small 3D printers if the model is divided into printable sections and then assembled. This is precisely where things often go wrong in practice: simple cuts in CAD systems create smooth cut surfaces that are difficult to align precisely during assembly.
For a few divisions, PrusaSlicer can add dowels and holes to the cut surfaces. However, this only works to a limited extent if a model requires a large number of cuts. Luban has been the established solution to date, offering additional tools for model editing in addition to cutting. However, the software costs around per month. An alternative is Split3r, which offers similar functions as a one-time purchase for €60 to €95.
With 3D Splitter, another tool is now available that can be used free of charge. The service runs in the browser, takes a 3D model as input, and offers functions for scaling, alignment, and 3D preview. You can then specify how many segments the model should be divided into. The number is specified separately for the X, Y, and Z axes, which can help to make better use of the build volume on non-square print beds. The tool then quickly generates a segmented version and displays the parts in an exploded view for checking.
The connection geometry is striking: instead of pins and holes, 3D Splitter uses a “wavy” pattern that allows the parts to slide into each other sideways. This is particularly advantageous when there are many segments, as additional dowel pins can hinder the installation of further parts.
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