Heres a build post for my Optimus rifle. It's 4 feet long and 100% scratchbuilt. It took about 3 years to build. Not straight through obviously lol, maybe a year of solid work. The core is just plumbing tube and alot of other bits are MDF and all sorts of stuff I laid out on the floor and picked what looked right lol. The cube was made from a photo cube from Michaels and theres even a butchered Gobot in the gun just for fun lol. Of course a project like this is never done so I'm adding more details and lights and building a retractable glass display case or something. My next project is a 3 Foot tall Ironhide motorized gatling gun which will have fluid inside and all sorts of moving parts. Ill start that thread after I get a good round up of stuff that I'll start work with. Thanks for looking.
Kindof in order.
Then decided to make the display part which ended up to be just as much as a project lol.
The cube before
Then 20 hours of carving later lol
final painting done
At TFcon and the awesome result of some late nights and Redbull lol