20x20mm aluminium extrusion gantry system

I'm currently working on a gantry system for my h-bot printer, this piece is for connecting x and y axis .. it's just a prototype!..

I'm back on track with this, here is short movie showing the progress http://youtu.be/goQVZ6Y_UDU

Fishing line test
http://youtu.be/r3W_ih6L7eg