Lost my magnetized 40k lascannon, so had to find a way to get a replacement it before the next game :)
Comes in 2 varieties - full model and sliced into 3 parts for support-free printing.
Best results with 0.15mm layers and smaller.
Is compatible with GW dreadnougts and http://www.thingiverse.com/thing:410959
I have no affilation with Games Workshop.