The file 'Soda Bottle / Pipe Coupler For POV Baton 3D Printer Model' is (stl,scad) file type, size is 508.5KB.
This is based on the Genesis Poi project.
https://www.thingiverse.com/thing:918847
Can also be used for coupling bottles to pipe for fluid projects!
Got tired of poi, wanted to give baton a try. Secret advantage is that an extra battery can be hidden inside the pipe, or even extra electronics to provide fancier or larger pattern sets, not to mention controls.
EDIT 11/19/2017: After trying to twirl for the first time using 1/2" PVC and failing miserably I looked up the standard diameter of a baton (which I should have done to begin with), which is 3/8ths. 3/8ths PVC is way too flexy, and too thin to really fit any electronics in there. RIP.
Revisionwise I added a hexagon option to prevent the baton rolling away when it's dropped, and lengthened the threading area for better grip.
Modified from MrWhat's SCAD file after eliminating unrelated clutter.
8thsOD_sodaCoupler.stl | 1.8MB | |
halfinchID_pvc_sodaCoupler.stl | 2.5MB | |
pipesodaCoupler.scad | 2.3KB |