Inspired by http://www.thingiverse.com/thing:9006, this is an attempt to create a parametric loc-line compatible 1/4" hose segment using OpenSCAD.

For now I've only modeled a single segment, but plan to add accessories in the future (nozzles, mounting base, etc)

Description of Files

• The DWG contains my dimensioned reference design
• The DXF contains a cross-section ready for lathing
• "modular_hose_segment_from_dxf.scad" is a one-line OpenSCAD script to lathe the DXF into a solid (using rotate_extrude)
• "modular_hose_segment.scad" is the main parametric script
• "modular_hose_segment.stl" is a high-resolution STL export from the OpenSCAD script

Tweaking the script
There are loads of variables in the script to play with, hopefully they are all fairly self explanatory. I suspect the two most useful (in terms of tweaking the design for printing) will be:

• tolerance = controls the distance between the ball and socket surfaces
• definition = this defines the number of facets for curved surfaces (sets the $fn parameter)

Feedback
This is my first practical OpenSCAD design, so would welcome any feedback on how to refine either the object or my OpenSCAD coding style.

Updates
I've now merged this into a more comprehensive modular hose library - see http://www.thingiverse.com/thing:9457

I've not yet built my 3D printer, so I can't test the part. If anyone is up for being a guinea pig, I'll happily modify the design based on your feedback.