Wednesday, May 14, 2014

trebuchet case studies

Jason Solomon                                                                                                                                5/9/14

Trebuchet counterweight case studies


 
 
I am researching a counterweight trebuchet. The things works when you put the projectiles in the sling and the weight is on the same arm at the other end. When you let go of the arm the weight carries it down and the arm swings and releases the projectiles. It is like a seesaw when you hold the lighter end. You let it go and the heavy side goes down. I wont to work on this because I think this is easy to accomplish and it puts a lot of force and velocity into the arm when you shoot the projectiles.
 
 
 
 
 
 
Case Study #1 Lindsey and her family
 
 First the group had to overcome what was  getting past the formidable defenses - a 6-foot high wooden fence with reinforced gate. This lead to the 5.85m  high counterweight being installed and the trebuchet including an added 2m of sling. The positives are that it gives us a good example of a counterweight that works, easy design modeling, and gives good perspective on a strong base. Negatives are it is to big for us to build, not enough information on how they built it, and we don't have the time to build it.
http://www.instructables.com/id/The-Insensible-a-counterweight-trebuchet/
 



Case Study #2 Luc Viatour


 The dimensions are2,469 × 1,944.
The positive are good perspective on the counterweight use, well designed, and good strong foundation. Negatives are to big for us to build, no building instructions, and no feedback on the design.  
 
 

Monday, May 5, 2014

sumobot

Jason Solomon                                                                                                                               5/5/14

                                                                   Sumobot Blog


The project requirements for the sumobot was to build a running car with the parts that were given to us by Mr. Atkins in the box of stuff. We built up the project with motors and batteries and got the control box to run the course. We ran the course in two minutes and twenty four seconds and that was 60% of our grade. We made our design of McDonalds because we had most of our colors red and Steve came up with the idea.

My group came in third place out of five. RDJ came in first followed by John Deer then Ronald (my group) then ASAP Fury and last but not least, Bloody Mary.

We would make our wheels perfectly straight and not be able to move at all. The front wheel would have more traction so it could turn. That was the problem with my groups project. We had speed but not torque on our wheels. Plus our gear drive project was worth it we just need to fix the torque and have a better distribution of weight on our project.