The Techmech is a multi-purpose, large-scale mech resulting from evolutions in innovative battle technology from the J.O.B. Engineering & Manufacturing Co. Not yet in production, the Techmech is a prototype battle machine currently being tested in an underground facility excavated by controlled UNEs (underground nuclear explosions). Because of its unique system of weapons, the Techmech has many uses. Primarily, this giant bipedal mech is used in large-scale assault missions. Resulting from its evolutionary battle technology, the Techmech also makes a very practical mining machine. To explain why this is, the Techmech’s weapon systems must be described in detail.
About this creation
Featured on the Techmech are five main weapon systems. First is its four-barreled MARC. This acronym stands for Multi-Ammunition Rotary Cannon. Available to the MARC on the Techmech is a variety of projectiles including armor-piercing rounds, combustion-propelled grenades, and small artillery shells.
Mounted on the underside of the Techmech’s torso are two OSIK (One-Shot Infantry Kill) guns, (pronounced: ah-sick). These guns are for efficiently taking out infantry. To do this, the OSIKs feature an extended barrel and do not have recoil.
Attached directly to, but completely independent of the MARC, is the Techmech’s massive gravity-powered laser cannon. Simply a high-powered, large-scale laser emitter, the Techmech’s laser cannon is probably its most useful weapon. Using astronomical amounts of energy for a single blast, this laser cannon is powered by twin gravitational generators. The power created is stored in a thirilium-ion battery until it is all used instantly in a devastating green laser blast. Because of its demand for power, the rate of fire for this laser is very slow, although it is still an extremely devastating weapon. Because of the perfect accuracy of a laser and its virtually unlimited effective range, the Techmech's laser cannon is also used an an anti-air weapon.
The diameter of the Techmech’s laser blast is precisely equal to the diameter of its Programmo-Sphere Projectiles, or PSPs. Mounted on the top of the monstrous battle machine that is the Techmech is a PSP launcher containing four projectiles. The most advanced ranged explosives available, the PSP is programmed to soar and/or roll to a target defined by SmartTarget technology. The unique design of the PSP makes it an efficiently invasive weapon.
The Techmech is armed with six missiles, which can be fired from the Techmech’s external, rotating missile chamber.
Resembling a human hand, the hand of the Techmech makes an efficient melee weapon, as well as an extremely useful tool. On the tip of each finger are small claws used for manipulating tiny objects.
As stated before, the Techmech makes an effective mining machine. Its weapons systems have been designed to work together to accomplish massive mining tasks. If the Techmech were to clear the side of a rock face, it would launch one of its rockets, exploding the stone. It would then clear the area with its magnetically controlled hand. However, if the Techmech’s mission were to obliterate the inside of a rock mass, it would send a pulse from its laser down into the rock. It would then send a PSP down the hole created by the blast, exploding the rock and creating a vast, hollow chamber that could then be the center of much underground activity. The Techmech’s MARC has no intended use in mining and neither do its OSIK guns.
Powered by many internal GAC generators, the Techmech is extremely energy efficient and less dangerous to it’s own military than nuclear-powered machines, although I-matter, which provides protection for the Techmech would be sufficient in protecting a nuclear reactor from any opposing force. Since the legs of the Techmech are not mounted directly below its main body, it features an internal gravity centering cylinder to simplify its walking pattern.
One engineer pilots this colossal machine, aided by the artificial intelligence of SmartTarget with tactics from the whole of military history integrated into its programming.
OK, so here’s the description of the real-life LEGO creation; enough of my sci-fi military talk. Let’s start with the feet. The feet can be moved in three dimensions: two ways. To tip side to side, there are two worm gears geared together at a 1:1 gear ratio for synchronized rotation. These worm gears come into contact with a 40-toothed gear, which is attached to the upper part of the foot that can sway side-to-side.
Next we have the ankle and knee mechanics. For the ankle, there is a worm gear securely pressed up against another 40-toothed gear that has a 9-stud beam attached to it, which is also attached to the foot to move it in a back and forth manner. A linear actuator (the cool-looking PF-styled cylindrical element extending past the edge of the picture) controls the angle formed by the two main leg sections.
Here we have the gears- well, uh, I guess you could call them the “hip” gears. Again, a worm gear to a 40-toothed gear. This set of gears moves the entire leg back and forth.
These are the, uh, “pelvic” gears. Yes, these too are worm and 40-toothed gears. I don’t feel like trying to find a way to explain how these gears move the legs; you can probably figure it out anyway. The waist (a 58-toothed gear) can move freely.
If you are looking at the Techmech from the top, these Bionicle stabilization cylinders keep the legs from moving freely on a radius originating at the center of the mech.
You have no idea how much I thanked myself for adding this linear actuator. This enables the mech to essentially “bend over”, making it’s balance much more easy to manipulate than having to move all of those leg joints. It would also help it to pick up objects more easily, but that bit of info should’ve probably been featured on the top half of the “About this creation” section.
In concept, thin thing could be rigged and programmed to walk. Unfortunately, it would be nearly impossible because of the play given by LEGO's non-perfect gears, and the fact that I would need to make the arms movable for balancing, motorize them and all of the leg joints, waist and rear linear actuator (which would be like a whopping 16 servos that I don't have.) and most likely make a *bleep*ing complex program for my nxt, which I don't feel like doing and can't because the "unlimited" option for my motors doesn't work. Not to mention that it would make it like at least twice as heavy (twice as hard to manipulate) and hugely unattractive, so no fully capable robotic mech this time.
A BIG THANKS TO DEX HAHNE FOR THE SIX 40-TOOTHED GEARS AND FOUR WORM GEARS THAT HE LET ME BORROW! Couldn’t have built this without you, Dex.
Quoting Yuri Fassio
Wonderful mech. Love the use of shock adsorbers :)
They're not shock absorbers, actually. They're really nice (and very expensive) Technic pieces. There is a hole for a + axle that, if you turn it around, the silver metal part goes out or in. They're VERY useful. They're called linear actuators.