hi,
i am thinking about building a full size securitron and wondered if there where any plans or measurememnts i could follow or if anyone has any advice to constructing the securitron that would be great.

Like a working model.....?

None that I'm aware of. My suggestion would be to compare them to other objects in the game to estimate their height, then rip the model from the game files and work off of that.

there about 6''2 and 3 1/2 feet across, shoulder to shoulder, the monitor is about 1 1/2 feet and the waist is about the same, the weel is half a foot wide and 1 foot in diameter. BTW im guessing all these from the top of mah head

....uh............I'd go with that! :thumbsup:

I'd say taller than 6'2" they seem pretty tall. maybe 6'6"

Please keep this updated. I want to see photos if the idea comes to completion. D:

dont want to be a dream killer, but I doubt you could build this at all, with that damn wheel-physics boggling me.How the hell can they stand up? How do they roll about efficiently without tripping over? Their weight must be heavy enough to make the tire almost like an oval shape to at least get some grip upon the ground, that or their weight is truly heavy enough to keep the tire in place, lets not forget the gears that spin the tire, or whatnot, possibly holding it still while holding the chassis and whatnot still.

The arms will probably be the easiest to create, as it looks like the piping you see from using Dryers and whatnot. the Face is...well..thats going to be a bit difficult to, unless you can place a generator that creates 5-7 hours of battery life so the screen can be litted up. other then the things I listed, it shouldn't be too hard to create the rest of the bot.

The wheel could easily have a very high-tec breaking system which could hold the large part and the whell in place for perfect balance, the wheel itself could be made of something incredibly strong, with a very tough tire around it.

uhhh...what? you do realize hes using home-material crap right? something out of Home Depot probably? rofl. Yeah, hold on, lemme get my high-tech braking system blueprints, its in my closet behind my school papers :rolleyes:

like I said, the physics right now for something THAT heavy one something as small as what seems to be a wide semi-truck wheel, I doubt you could make it stand up, let alone roll about.

He was talking about in-game. You questioned how they could stand up, he answered.

I agree though, I don't think the OP will be able to see it through. If he does, more power to him. :no:

What will you be making it out of?

ah, In-game I see, in reality, no. Hell even in the game, no one ever wonders about how their able to push foward, lean foward, and even get up when knocked down. Shifting with that much weight at the upper part of your body, and having barely if no weight on your lower section, is impossible, as gravity tends ot help in this matter and make you fall 'continuously". Unless they have a breaking system that can stop a large vehicle on a dime and turn in a 90 Degrees angle without making htem do a cartwheel and falling screen first, i'm just not seeing it. The security robots made much more sense, even Mr. Handy :/

I agree. But in a game with laser rifles and plasma bolts, I tend not to look to far into little things like that.

Weebles wobble but they don't fall down.

This.

and the breaking thingy too, thats important.

Ah, well you see I thought you were talking about the game, in his case just don't make a moving wheel make the inside completely solid and put it on a stand or something.

Easiest way to do that is to load the Securitron model into http://niftools.sourceforge.net/wiki/NifSkope; export as OBJ, and load it into http://www.tamasoft.co.jp/pepakura-en/ and flatten it out. You would want to use "http://www.amazon.com/48-96-Black-Gator-Board/dp/B004SRWGZS/ref=sr_1_9?ie=UTF8&qid=1315011268&sr=8-9", but "http://www.amazon.com/Pacon-Original-Foam-Graphic-Boards/dp/B002764CWW/ref=sr_1_5?s=office-products&ie=UTF8&qid=1315011309&sr=1-5" or even thick cardboard would work.

If you are planning a Halloween costume; You might want to borrow a Segway scooter to base the costume around.

My recommendation would be to build the body out of gator board or foam-core; carefully taping seams, and know that you can cut half way through the material and bend it on the cut. After you have a section made, Papier-maché over it to get a uniform shell. Do no less than three coats (allowing to dry between coats), consider doing 6 to 8 coats and a good sanding when done. :shrug:

You could use http://www.iasco-tesco.com/index.php?page=shop.product_details&flypage=flypage.tpl&product_id=647&category_id=31&option=com_virtuemart&Itemid=2 as a sealer (but thinned wood glue with a brush will do the job as a final slick coat after sanding).

Large hardware stores like Loews & Home Depot will stock http://www.lowes.com/pd_259814-62059-51510_0__?productId=1239339&Ntt=flex-drain&pl=1¤tURL=%2Fpl__0__s%3FNtt%3Dflex-drain&facetInfo= that could serve as base for the arms.

you havent answered my WHY they do so but not fall down? .-. if someone could answer this, then it could help th eOP in designing the Securitron.

When an object tips, it rotates around the center of mass. The Weeble has a low center of mass - the bulk of its mass is at or near its bottom, which means you have a very short lever arm between center of mass and the base. Short lever arm = large amount of force required to move the object. This is why you use a long wrench to break a very tight bolt or fastener loose. The Securitron has a high center of mass in relation to its base, thus a long lever arm between them - only a very small force is required to tip it.

The better model for a Securitron would be a person on a unicycle. A unicyclist maintains balance by shifting his/her weight around the tip point -i.e. the contact surface between the bottom of the wheel and the ground. The Securitron would have to have a similar means to maintain its balance, probably a series of gyroscopes to detect movement around the tip point and send signals to some sort of mechanism to shift the weight of the Securitron to counteract that movement. That means a computer system to process those signals and send the proper signals to the balancing mechanism to keep the Securitron from falling over. It would probably need to do this many times per second.

You're not going to find that kind of hardware at the local Home Depot, I'm afraid.

Gyro stabilizers.

Well not just yet i want to see how the full scale model goes before i start adding in real robotics i already have the design for the arms.

not bad but i do thing the securitron is about 7 foot but ill bust out the measuring tape and see what looks better

thanks guys you have been great and its gonna take me ages to look thought all your comments and will put up pic and info maybe some vids so you can all se how the securitron is going!
bye the way did i thanks? yeah i think i did!

i have already pondered that problem but a comment on this really helped me out gyro stabalisers would keep it up and a simple system of cogs leading up to a motor to sort out movement and i will program it to balance when moving. thanks for bringing that up.