So four small “carrier bogies” on two separate mechanisms help carry the Such long treads also needed some support along the length of the system, Would push this small cog up into the tread, thus taking up any slack The “point” of the triangle on a spring-loaded arm. To be tensioned, which was done by putting the small cog at When backing up, the treads would also need Kept the bottom of the treads under tension while rolling forward, preventing the treadsįrom skipping or risking breakage on rougher ground. By having the treads driven at the rear, it Has 55 tread links, driven by a large cog in the rear The tread systems were identical each side Replaced the NXT motor with a more compact XL PF motor. Spilling I added a small flip-up guard over the front of the tray, and I Ungainly vertical “stack” ammo magazine on the original Hailstorm, Iĭesigned a long slightly sloped “tray” to feed the launchers. Launcher in between two large triangular treads. So I changed tactics, and mounted a fixed Resulting turret was large, large enough that it needed large flat smooth surfaces toĪnd even then, elevating it didn’t work well because it could only feed The launcher on a pan-and-tilt turret, and found that this really didn’t work too well. The To track or elevate to direct the spheres. Ultimately it wasn’t very flexible as a fixed structure it had no ability It was named “Hailstorm” because of the sound of the spheres Sustained volley of fire that can empty the 40 sphere magazine in under 5 Impact them, and thicker walls are torn down only slightly slower by the Structures is devastating thin walls look like they explode as the sphere The result on loosely “piled” (not clutched together) brick-built
Over 9 spheres a second, and speeds of more than 4 meters/sec (about Powered by a single motor, this array could crank out a little In a space just 12 studs across, the tightest nesting I could figure The original Hailstorm nested four launchers (each 3 studs wide) This is the logical (or perhaps I should say "obsessive")Ĭonclusion to a series of robots I've played with for a while,Įver since the first person put a Zamor launcher on an NXT robot.
Wanting to mount a “Hailstorm” class Zamor launcher onto a mobile platformĮnded up being a far more entertaining and interesting project. NXT and built entirely out of unmodified LEGO. O G R E is an autonomous robotic “tank” based on the
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