This is a connector designed to work with standard craft sticks.
The zip file includes two models, one with cruciform bores and one with straight bores.
Failing a Save Against Platonic Love: http://zheng3.com/?p=1955
Seej patient zero. Barbie Armor Designer, artist, worst programmer ever. Mostly illiterate, but has minimal competence in spoken Mandarin. Not real clear on Ohm's law.