When we were sure about every feature in our design we started the 3D printing. It took us almost 17 hours to achieve our goal, but the wait was worth it.
3D printing is a good candidate. There may be some precision limitations to consider. Also it may be hard to create small features accurately. These can only be figured out by testing various materials.
Print all the parts according to 3d-printing-assembly.pdf file.The resolution of the print is depends on your available time. The finer you print the better it gets and less sanding at the end.
With PLA the tolerances were very good in my set up; using PETG was not that good... I adjusted the fit to the bearings by printing with a slight increase in size, defined in the slicer.
3d print these 3d models using Onshape:https://osd.onshape.com/documents/bce763c140e0d1f4b60caca3/w/d3b92d8cee05361d7e29aa4c/e/132df27706402643b5f49f92
First, 3D print the control box top and bottom as well as the indicator box front and back. While these are printing, you can start on assembling the circuit board as described in the next step.