Murlin Trebuchet Case Studies

Murlin Trebuchet


http://www.instructables.com/id/The-Marshmallow-Trebuchet/step1/A-Little-History-Design-Selection/

Summary

The way the Murlin Trebuchet works is by hanging a mass connected to a piece of rope that is wrapped around several arms to increase the tension in the rope.  Once the mass drops the rope well speed up and get faster due to acceleration, launch the object out of the sling.  I would like to work on this Trebuchet because it seems like the most efficient way of getting a far distance out of a Trebuchet.  Even though it seems complex in the building process, I looking forward too the challenge in building the Murlin Trebuchet.

 

Case Study #1

Rating (7/10)

 

Positives

• Gives a good description of the Murlin trebuchet and the task/ building process one has to go through to build a successful trebuchet.
• Also it explains why the Murlin is the most efficient trebuchet out of the three others.
• Has helpful videos and pictures exampling how the trebuchet works.

Negatives 

• Doesn't give information on the dimensions used to build the trebuchet.
• Key information is blocked by the school security system.

http://thehurl.wikidot.com/trebuchettypes:merlin

Case Study #2

Rating (7/10)

 

Positives

• Involves a video to show how Trebuchet works.
• Explains difficulties in the building process.
• Explains the positives and the building process.

Negative

• Doesn't state dimensions of Trebuchet.
• Not as much information as in Case study #1.

 

 

 

 

 

 

 

 



Sumobot Racer

                                                                                                     
 

Sumobot Racer

             

                   The project requirements were to build a Sumobot using the materials provided to complete a full lap in the hallway.   Now most groups were not able to reach the goal/ requirements to complete this project.  But we were one of the groups that did achieve the requirements all thanks to our smart design.  We took two lego wheels to use as our back wheels instead of the wheels provided because the lego wheels had more grip on the ground.  We also took the board of wood  provided and cut about 1/4 or a little less off to reduce the weight of the bot.  We then measured the distance of the two back tires and took that measurement and measured from the back of the bot to the front to place our front tire down.  We did this so we would have even weight distribution.

                 For the time trials our group finished first with a time of 2:24, we couldve gotten 2:04 but we had to take one time penlty because our car drove into a wall.  The second place team and the only other team with a time was the Hillbillys with a time of 2:50 they couldve beten our time but they took three time penlties because their car kept spinning out.

                 We would redesign our car by adding sides to the car or some sort of wings to prevent the car from crashing into the wall so we wouldnt have to take a time penlty.  We would also use a different method for putting the wheels on because they weren't straight on and the kept falling off a couple times.