Building the BFG with MyMiniFactory

Gun safety rule #1 - hold it the right way round.


A few months ago MyMiniFactory approached us to help them on a top secret build for a “new major game release”. We were intrigued, but told that no further details were going to be revealed until we’d signed Non Disclosure Agreements (NDAs). This seemed a little heavy handed, but we understand how these things go and agreed to get access in exchange for keeping our mouths well and truly shut.

Once everything was signed off and we were lawfully locked into secrecy, MMF opened up to us with more details. Their plan was to create the legendary BFG (some say it stands for Big F****** Gun, which is pretty aptly named) from the Doom game series in true-to-life physical form.

The BFG-9000 from the newest 2016 Doom game


Clearly this was going to be a 3d printing project of epic proportions. Remembering the size of the gun from the game, it was clear a ‘life size’ replica would further highlight just how much artistic license Bethesda use when creating their games – although we weren’t prepared for quite how big this monster was going to come out at.

While we discussed all the gritty details of the build with MMF, the legendary design bad-ass (and avid customer) Kirby Downey got to work pulling the specs of the gun and turning it into a watertight set of 3D printable files. This took him days, and with the close ups you can see why.

Kirby Downy

If you’ve not seen Kirby’s designs, I recommend you check them out here.


The whole 3D model of the gun then had to be diced and sliced into 70 individual parts to be printed out on more actual ‘life-size’ 3D printers. Here's just a handful of the parts: 

All the parts printed, ready for assembly


MyMiniFactory hosted the printing live video feed on their MMF TV channel. We imagine it was just as exciting as watching a regular 1 hour long print, one thousand times. After 1000 solid hours of printing with our 1.75mm Grey PLA, the last parts finished and the assembly work could begin. Luckily they had a bank of around 10 printers running near continuously to finish the project.

MMF were surprised that there wasn’t a single printing hiccup over all those print hours.

Grey was chosen for its middle-of-the-road influence on the final paint coat – it’s why primers are often grey, so light and dark colours can be painted over the top.

Things coming together nicely


It wasn’t just the extended reliability of that impressed the MMF team, but also the finish quality of the parts. There were no unexpected extra bits or imperfections to sand out. We were relieved (but not surprised) everything had gone off without a hitch, and like Steven Seagal (to use an irrelevant metaphor) not looking back at an explosion, we stayed pretty cool and nonchalant.

 This was basically us, mincing away after learning everything went impeccably well


Once all those 70 parts were assembled and glued together, Sarah Wade finished off the paint job with an incredible finish – making the whole thing look very real indeed. You might want to check out some of the prints she’s painted too, her skills are impressive. 

Unless you have an excess of free time on your hands (wild understatement) you might not be able to print a full size version of the BFG yourself. But you can download the files straight from MMF and print off a smaller version, err – for the kids?

Please let us know what you think to the build in the comments below – we’d love to hear what you think and also, if you managed to print a scale replica yourself?

Want to try for yourself? Why not order a free sample (with free UK shipping) to test it out for yourself? You might just find out what all of the fuss is about.

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