Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:1538131.

Remixed 2822 foam cutter with the universal mounting system bracket.

See my new version of this that includes a few minor improvements (mostly it's taller so there's less stress on the needle) and is now parametric so you can adjust almost anything about it to fit your needs: http://www.thingiverse.com/thing:1723915