Filament tube for Ikea enclosure

I made an enclosure for my Wanhao Duplicator i3 v2 from an Ikea cupboard. I got the instructions [here](http://makerhacks.com/ikea-3dprinter-enclosure/).

I mounted the spool holder on top and drilled a hole to feed the filmant through. The thing is that the cupboard is not made from solid wood, but rather thin sheets and honeycomb which you are gonna feel whenever you are feeding filament through. Just print the tube and jam it in the hole for easy feeding.

Do NOT drill the hole directly