80/20 (fractional) parallel mating plug

thingiverse

This is a small, friction-fit plug that mates sections of 80/20 profile together in parallel. See 8020inc.net for more information on 80/20. Hopefully, the photos will make the application clear - while 80/20 has a whole galaxy of different types of couplers and fasteners, I wasn't able to find anything that mates profiles that are flush up against each other. Instructions I've included the Sketchup file for you to riff on, but you should be able to just print the STL without issue. Update (3/13/13): The original part was very slightly too long (you can see the small gaps between the profiles in the photo). The new part is now uploaded both in STL and Sketchup format. I have removed the original/too-long files, so now the only files available on this page are for the new, just-the-right-length piece.