Ferm rotary tool router attachment

This is a router attachment for the Ferm rotary tool (Dremel clone from Dutch company).

It fits by friction and is attached by just snugging it on. The depth of the drill bit is only changed by how deep the bit is introduced into the tool, not by this attachment. 

I included one version with and one version without directional arrows, but the arrows might help keep a steady line for some projects. The LED's remain usable with this attachment. 

Just print with wider side down (as it would look like while being used), the model is designed to be printed without any supports. 

Best print in PETG or similar for stiffness (as it's friction fit). 

The stability with the attachment is not ideal due to the friction fit but it was enough for my rougher projects. Adding double sided tape to the inside of the attachment might help with shifting.
If you have a better idea for attachment, let me know and I might try to include it.