0:00:00.000,0:00:01.040 Hi everyone. 0:00:01.119,0:00:02.091 So, we're back! 0:00:02.353,0:00:04.703 My name is Eliot, and she is Jing Xuan. 0:00:04.763,0:00:07.583 We are back with our coilgun version 2 0:00:07.636,0:00:09.844 So, for those of you who missed our first talk, 0:00:10.743,0:00:14.152 a coilgun is an electromagnetic projectile launcher 0:00:14.152,0:00:18.122 that uses electromagnets to propel a projectile. 0:00:18.271,0:00:21.901 We start off by firing the first coil 0:00:21.911,0:00:25.171 which sucks the projectile into the middle 0:00:28.794,0:00:29.044 and activates the first sensor which activates the second coil, 0:00:31.625,0:00:32.906 and the second sensor which activates the third coil 0:00:32.906,0:00:33.976 which then fires the projectile. 9:59:59.000,9:59:59.000 A quick recap of our version 1 - 9:59:59.000,9:59:59.000 we made a 60 Volt 3 Stage coilgun 9:59:59.000,9:59:59.000 that was modular and could fire with 9:59:59.000,9:59:59.000 either one, two, or three stages, 9:59:59.000,9:59:59.000 or one stage with all the power of three stages 9:59:59.000,9:59:59.000 into that one stage. 9:59:59.000,9:59:59.000 But the disadvantage of having it modular 9:59:59.000,9:59:59.000 is that you need to do a lot of daisy chaining 9:59:59.000,9:59:59.000 because you need to pass the power 9:59:59.000,9:59:59.000 from one end to the other.