Summary

Wingjoiner to attach wing panels with O-rings. It works very well to secure the RVJET wings and wing extensions using 3/4" x 15/16" size O-rings.

For a more aerodynamic install it is recommended to cut out where these are placed. Either by freehand or with the user of a joiner: http://www.thingiverse.com/thing:127067

For 3d-printing with FDM-printers I recommend this instead: http://www.thingiverse.com/thing:170397