Today I missed 1/2 day of school to come to the soft opening at the ETC! It was a fun day, I got to see some other projects going on at the ETC, and I got to talk about our project... a lot. Some groups of people ( I think they were staff) came and looked at our exibts, Linxy and ( ' 0 ' ). I didn't really talk about Linxy much but I got to play with her!

I explained to people our tic tac toe robots. ( Anthony Daniels was there too! ) I did not know much about what the other mechinanical people did but I talked about programing. I explained how we found the robots range of motion to creat the tic tac toe board. I talked about inverse kenimatics ( when you know the end point and need to know how the robot needs to move, so you create triangles at the angles of the joints and calculate sine and cosine.). I also explaind how we put that information in to python language. When a person was playing the robot arm, I talked about how we programed the computer play. We had to tell the robot the winning possibilites and tell it to check it and stuff. We also needed to give it a strgedy ( who knew tic tac toe was a stratigic game?) We need to work on that some more, I don't think the computer ever won = (. When someone did win, the robotic arm drew a line across the winning points. I explined that the robotic arm can not draw a stright line unless we broke it down in to Interpolations. ( If we did not break it down than it would draw an arc and not line.) With interpolation, each joint move a certian amount of times unsted of all at once, this causes the robot to draw and etch a sketch like line. Thats basicaly how our robotic arms work.

I also talked about the diffrent things we did through out the program so far. I talked about pengo, keepon, the motion lab, and all that fun stuff.

I liked it a lot because it helped me understand my controbution to the project, and what im learning. I didn't know I knew what I knew untill I had to expain it all. I was kinda just like wow I learned stuff. Well, Im glad I did or this would have been a hard day. Today helped me understand the program a lot more. I liked it a lot, more people shold have came.

I didn't spen the whole time talking. We looked at other pepole projects at the ETC. One project we looked at was creating a sketch for a video game. We created a viedo game with capigs ( we wanted pigs but they only had cats, so they made a cat look like a pig) that played hopscotch. Another project we looked at was a video game. It was a game where you needed to use your logic to play spells to beat you oppents. We also looked a few diffrent other projects but this about sums it up.

It was a fun day, im sorry for those who could not leave school.