Chalk up another item on the list of "things I'd prefer not to ever redo but ended up doing anyways".
I had an opportunity to try out building something with the new revised minigun schematics I posted a while back. Seems that there's some errors that needed to be corrected with those schematics, in terms of a few dimensions being wrong. As posted, they either require longer support arms on the handle mount bracket (sheet 2), or a shorter profile on the outer barrel support (sheet 1). A modification of 2mm more on the handles or 2mm less on the outer barrel support (actually that needs to be dimensioned in general) will fix the problems. Oh well. None of you actually are using my plans anyways, so you're not affected.
Since this build used the newer schematics and improved building methods, I have officially designated this model as the "production" model. I've taken the opportunity to try out different build methods to lighten up the minigun as much as possible. Also, I've forgotten how I built it in the first place, so I had to.
The minigun barrel spindle assembly was built with purely 110lb cardstock this time. I think I may have used a plastic tube in the prototype to reduce friction. That may also have been a big factor in the weight reduction.
Mini MS stand I bought a while back finally found a good purpose. Just the right height to display this monstrosity.
The build took around a week (with copious breaks in between part fabrication), and definitely was made easier with pre-existing plans. However, I had some quality issues with the large drum that resulted in a warped outer surface. That entire drum needed to be scrapped and redone, costing a day's worth of work. It's not particularly an annoying project to do, but it's not pleasant either. I did achieve a noticeable weight reduction, but not enough to allow the minigun to be properly wielded by the Heavy.
As for the fate of Prototype S/N 0001, it shall remain in possession of The Vortex as no smart person would want the flawed model (and I actually like the older one better for some reason). S/N 0002 shall be used as barter for rare and exotic trade goods.