My first attempt to create something "really big"
Made of 4 parts, connected with M8 bolts.
You'll have to print both parts 2x, the thing is not symetrical!
The holes for the bolts are a bit short, I would advice adding 5mm.
Holes are for M8 bolts
I had some underextrusion on my Ultimaker2 at some of the prints, the last part came out perfect at:
Speed 30 mm/s
This was a 25 hour print (!) but any higher speed resulted in underextrusion on my machine.
the source file is a "design spark mechanical" file, my favourite free 3D software....