1 00:00:00,000 --> 00:00:01,040 Hi everyone. 2 00:00:01,119 --> 00:00:02,091 So, we're back! 3 00:00:02,353 --> 00:00:04,703 My name is Eliot, and she is Jing Xuan. 4 00:00:04,763 --> 00:00:07,583 We are back with our coilgun version 2 5 00:00:07,636 --> 00:00:09,844 So, for those of you who missed our first talk, 6 00:00:10,743 --> 00:00:14,152 a coilgun is an electromagnetic projectile launcher 7 00:00:14,152 --> 00:00:18,122 that uses electromagnets to propel a projectile. 8 00:00:18,271 --> 00:00:21,901 We start off by firing the first coil 9 00:00:21,911 --> 00:00:25,171 which sucks the projectile into the middle 10 00:00:28,794 --> 00:00:29,044 and activates the first sensor which activates the second coil, 11 00:00:31,625 --> 00:00:32,906 and the second sensor which activates the third coil 12 00:00:32,906 --> 00:00:33,976 which then fires the projectile. 13 99:59:59,999 --> 99:59:59,999 A quick recap of our version 1 - 14 99:59:59,999 --> 99:59:59,999 we made a 60 Volt 3 Stage coilgun 15 99:59:59,999 --> 99:59:59,999 that was modular and could fire with 16 99:59:59,999 --> 99:59:59,999 either one, two, or three stages, 17 99:59:59,999 --> 99:59:59,999 or one stage with all the power of three stages 18 99:59:59,999 --> 99:59:59,999 into that one stage. 19 99:59:59,999 --> 99:59:59,999 But the disadvantage of having it modular 20 99:59:59,999 --> 99:59:59,999 is that you need to do a lot of daisy chaining 21 99:59:59,999 --> 99:59:59,999 because you need to pass the power 22 99:59:59,999 --> 99:59:59,999 from one end to the other.