Dremel Router base (another one)

yet another dremel router base. inspired by http://www.thingiverse.com/thing:678471

but i didnt like the locking mechanism for the height adjustment.. so i designed a new base from the ground up, it should fit a standard dremel with a 3/4 inch 12 TPI thread on the neck (to measure it the space between the threads should be 2.1mm)

the locking screw is for a M4 screw, it should be tapped before use!

EDIT:
i found the side were a little thin and broke easily so i made them 3mm instead of