Tabletop stand for a balcony railing with double rails. Very specific, but the model was created with OpenSCAD and might be able to be customized or used as an example.

The holder has two screw holes. Make sure to use some perfectly fitting screws to avoid accidental fold up with quite deep tabletops. I especially don't guarantee any stability when putting heavy objects on the table leaning on, or worse, step upon the table. You are responsible for the stability of chosen material and settings.

For a tabletop with size of 120cm x 55cm I printed 3 holders with these settings:

• Printer: PrusaXL (36cm print bed size is required)
• Material: Something sturdy for outdoors, I used ASA-X
• Settings: 
  • Nozzle: 0.6mm, layer height 0.4mm, at least 3 perimeter layers 
  • 60% honeycomb infill, which is supposed to give best mechanical stability

The extra support cube was created to extend the lower strive by 3.4cm.