last lesson tegan and i got very excited and started celebrating the finish of our trebuchet too soon find out we forgot to make something for the golf ball to sit in. so we will definitely be finished next lesson and will begin testing. here is some pictures of the very final stage of construction.

nearly finished

we have now nearly completed our trebuchet. last lesson we finished making the arm for the trebuchet and had to make a few adjustments to counter for the 4kg weight that must be used.

we then attached the arm to our trebuchet and did a few test runs with a light 1kg weight to make sure it works and it did! 

we should be finished our trebuchet next lesson. all we have to do now is make the wheels for the base to make it fly further and create a trigger mechanism to hold the arm in place when you go to release it. 

pictures from last lesson

last lesson tegan and I screwed our 2 triangular support arches to our base using a power drill. tegan and I did a great job and all the screws went in perfectly without any screw ups resulting in our trebuchet being perfectly lined up. this was because we used this 9mm wooden stick that we placed through the top of the arches which allow us to screw down each side to line up with the holes at the top.

Here is a picture

after this we had to cut the 9mm metal rod that will be holding up our arm of our trebuchet. we then added a series of washers and bolts to secure the metal pipe in place.

pictures

as promised here is a picture of tegan and i progress.

this is a top view and bottom view of the base in which is that main part of our trebuchet.

the next step was to make the support arches by first making the middle beam and then filling in the gaps between with support triangles and right angles to ensure maximum strength 

here is a picture of one of the complete support arches for our trebuchet

the first week of construction is now over and tegan and i have made great progress. we have completed our base and 1 side of the support for the trebuchet. on each side of the trebuchet we have now decided to use a strip of MVF board to add extra support. this week we will continue building our trebuchet starting oof by making the other support. on my next post i will show you some photos of our progress.

trebuchet

tegan and I have just finished our ideation for our trebuchet and here are our ideas. we have decided to go with the design with the dimensions on it. We think that this will be the strongest design as it has alot of triangular support beams.

we have now received our new design brief and its to make a trebuchet. we are working in pairs and i am working with tegan. this unit looks quite interesting and i am excited to start making my trebuchet. :)