If you like videos like this, please consider joining my Patreon: patreon.com/mr_volt Really excited people like more CAD videos, since I enjoy making them. Here's a quick Q&A for your top questions: Will the files be available for download? Yes, I'll include a complete STEP file and a bill of materials with the build video. It's not a tutorial, but everything will be free (to download, parts cost is approx. $400 USD) What is this modeled in? Everything is modeled and animated in Fusion 360. Why servos for (X) mechanism? Servos are cheap and easy to source. I like to build things that are more approachable and if I use exotic/custom parts, then fewer people can replicate it. This also keeps costs and wiring complexity down since everything's designed to run off of a 2S LiPo. I like the simplicity of that.

Real question now, is do you keep it realistic firing wise or do we go the aperture route, using the whole bullet for 65% more bullet, per bullet?

What would be cool is if it detects the colour of the clothing someone is wearing and shoots at them if they wear the enemy team colour

I just found this channel and love what I am now calling “bullying valves understanding of mechanical engineering” - the series

This looks so much more advanced and sensible than WETA workshop's own version. Outstanding job!

I think you could have managed to get the horizontal turning action on the top hinge without compromising the hinge design at all. Using flywheels and gyroscopic procession, you may be able to get it to rotate by placing said wheel in the round housing of the head assembly. This would likely be even more expensive, wildly complex, incredibly unnecessary, and may not even be possible with your launching mechanism and barrel action assembly, but I thought it was a cool idea.

Dude, you are seriously underrated. All your projects are amazing, and you manage to explain everything in a way that makes sense. I love this video, nice job!

After doing FTC there is a frequency bias in spotting GoBilda components. Spotting them in your build was fun

this is wild. in 16 years of tf2 the closest we’ve got to a real sentry is the one in the valve office and other fanmade projects, but this is the best one. i honestly haven’t played tf2 in a hot minute but i was a proud engineer main and admire your work. keep it up, man. you’re doing great.

WHAT DID YOU EXPECT FROM AN ENGINEER WHO HAS 11 PHDS! OF COURSE IT'S COMPLEX!

This already looks like such great build. Can't wait to see it all come together! And, don't think I don't spot that wrangler in the background at the end you sneak!

He's gotta make the wrangler work like in the game too. I imagine that he could paint the target with an infrared laser pointer (or automatic garage safety laser) in the wrangler, and the gun will detect and aim at the invisible dot with an infrared sensor.

love this guy, barely even had an intro just got straight into the video like a chad

Barrel recoil makes sense as a solenoid, i feel.

absolutely incredible job. I cannot wait for the next part. you should try making tf2 nerf guns. I've only seen one made.

This seems like an amazing project! I really hope this is going to fire Worker Gen 3+ half length foam darts (yes they are in a sense off brand Nerf darts, but they are so much better and higher quality)

Great choice for a new project! Great VO work and editing as always dude, you're making great strides and I'm here for it!

wake up guys Mr Volt built a new valve robot

Dude, CAD guy here. I am seriously impressed at how well presented this video is! I've only been at my job for two years, and I would consider making a model and animation like this to be a major project. How long have you been doing this to make everything seem so easy?

"The sentry is perfect, well, except for all of the flaws" You could say that for literally anything

Dude I just found your channel., you literally build all the coolest things from my favorite games you have earned yourself a sub.

Incredibly cool project, as always. And the wrangler in the background at the end there, oh man. I can only guess what awesomeness you will present us with next time.

Awesome video, really detailed and well done production, I can feel you really like what you do

You earned my subscription! What an amazing build! The decisions made in the design were intuitive and effective. I'm looking forward to its assembly!

Brilliant project along with an amazing video!! Very inspiring, watching these videos become higher quality!

Amazing build as always. Great job putting in strength where needed.

thanks for showing this stuff, it really gives me a sense of how complex these kinds of projects can get

Such a hype for the next one!! I really love this videos, seeing videogame tech come to life is so exciting

Superb work, man! Looking forward to see the next episode!

This stuff is so cool. It's crazy to see you have over 100k subscribers with just 40 videos. You earned my sub

really cool video! it's interesting to see how you work around the silly aesthetic to make something more functional. reminds me of that common pitfall in the early days of any field of science/engineering, where people try to mimic natural things and then gradually realize how impractical that is and modify the design. planes that flap their wings like birds, that sort of thing.

DUDE! I was just thinking about you and thinking I hadnt seen an upload for a bit. I"M SO HAPPY!

First time seeing your channel, I really wasn’t expecting you to jump right into the thick of the video like you did. It was a present surprise compared to other similar videos that also focus on designing things! As an engineering student in college, I loved the video as it scratched the itch that I have for seeing things designed and constructed, even if just in CAD, I enjoyed the video!

i love these videos, they are so fun to watch! keep up the good work!

this is a surprisingly good video. make more, yt needs more quality like this

Bro is the engineer

I literally was thinking about your channel and turned on the notifications for it yesterday, then you upload!

This is not only fantastically designed, but also fantastically presented! Great job 👏👏👏👏

Dude. This project is awesome!

I do have an insterst in engineer, but all I can do is watch and nod as I try to grasp the complexity of the sentry in your video. Its great to see your channel and your work grow :D keep it up !!

I was coming into this video, thinking it would be a review of the design of the in-game model. And then you started describing a real-life design, and I absolutely love this.

I'm so deeply disappointed that you didn't just make a full, uninterrupted video for this thing.

Hey dude I’ve been watching your videos since your first couple uploads and I must commend you on your much better editing / video flow. Great to see

Man this guy is literally awesome.

I don’t know anything about engineering but this is fucking awesome and you manages to get me really invested

Barrel recoil makes sense as a solenoid, i feel.. Amazing build as always. Great job putting in strength where needed..

So excited to see this finished man!

god this gives me flashbacks. i tried to make a sentry in high school CAD/Eng class. i made some parts of it but quickly ran into so many things it surprised me. i orignally wanted to print it so it could fold up like it did in game and i did print some of the parts. they're long gone now tho.

Found you today, going to binge your entire channel because this... is beautiful work.

This is incredibly well done, bravo!

Cool video can’t wait to see the finished product

just found your channel and you to amazing projects, really great work! would also love to know how you're doing these animations as well

Amazing job as usual!

damn i was already a simp for ur stuff before but now i dont know what to call myself, this is beautiful

This is really amazing! I would love to buy one of these!!

It's insane to me how much detail is packed into the models for the sentry guns.

Fun little fact: Valve actually made a replica of the level one sentry gun that was fully made of metal, it could look around and make shooting sounds. Granted, it looks like it’s on a metal base (Never mind, I checked the video and it didn’t), but I think it’s still cool. It’s a video on their channel!

The fact that the Engineer can assemble this with only a few whacks of his hammer shows his prowess with engineering. Truly marevelous work

Next video: The Surprisingly Complex Design of a TF2 Titan

Usually all I have to do is hit my toolbox with my comically large wrench. 😅

Will definitely watch part 2!

Now to make an Aperture Science turret

subscribed, love this sorta content

This is so unbelievably cool

the execution is SERIOUSLY impressive. it is seriously well plotter

The secondary arm under the drum of the turret could be a sort of complex spring-loaded linkage that lightens the load of the drum to allow for more precise quick aiming

seriously underrated channel, you could be a big as hacksmith industries

when I saw this pop up on my recommended field, I had no idea it was going to be about a custom build, I thought it was just going to be about the in-game model.

instant subscription that was comprehensive

Damn, this is exciting! Can't wait to the next video!

i didnt expect what i got clicking on this video, it was really informative and cool!

I expected just an educational video about the complex design of the sentry, but instead I got an amazing video about an actual sentry!

Impressive! Great work

I am very impressed at how much you said "JLCPCB" without messing up for that sponsorship. Also, as a TF2 fan, thank you for making this thing a reality.

Been thinking about this myself!

that was amazinggg!!

Holy crap, you just rushed straight through the magnet in the ball foot like you didn't just blow my mind.

I'm a software engineer and info sec person. Mechanical engineering is like black magic to me. Still, videos like these are like catnip for my brain.

it's early in the morning, i'm having breakfast while watching how to make a lvl1 turret from tf2 IRL, idk why but i feel like today's gonna be a great day

Ooh, that's sweet. Looking forward to the rest

My dad would love this tool for hunting squirrels and birds.

Made my own lvl 1 sentry with my cad for my printer as well. Had the same issues with the feet and I'm kinda bummed I didn't use the slots like you did! Mine was tiny though and I made almost all the joints felxable (which makes it floppy!!) including the turret itself sliding into the head. What you have done is beautiful, the steel and electronics make it mint.

bro really just turned into an engineer

I was like dayum, this guy puts so much work into this?? And then i saw ur face in the middle of the video, And i was like, riggggth this guy 💪💪💪 awesome work as always 🎩👌

can't wait for part 2!

“Spies sappin my sentry!”

amazing. i designed a little sentry which turns and beeps, but i just put the axle of a stepper motor straight through the tilting bracket onto the base

Nice video! You should make the level 2 and 3 sentries as well as the other engineer buildings next!

As a 16 year old trying to self-learn 3dmodeling and engineering, i would love to know if this program you used to model the design is fusion 360 or some other program. The work you do is insane! I couldnt imagine even modeling a single screw of this terrific turret!

My man is making Valve technology real

You could say it's very well *engineered*

I have the feeling he knew what he was saying with “I have some balls of steel”

Fascinating

You peeked my interests. I now subscribe to you.

Man, this project makes me want to build a dispenser then laugh at a wall

God damn you make me want to build one as well

Engie would be proud perhaps you should make the mini-sentry next

this is really cool, I'm glad someone submitted the alternative title "Making a real life model of the TF2 Sentry (Part 1)" for this video to the DeArrow extension, otherwise with only the creator's original title (The Surprisingly Complex Design of a TF2 Sentry) I probably would have never clicked on this lol

the recommendation god have blessed me with a random tf2 video

Damn, just today I was thinking about the possibility of making a Mini Sentry.