User:Horizon1992/enes100/Other Projects

Problem Statement
''Our group is doing the Implement phase of the make bot where we have to take the material and test its strength to figure out how many pounds of weight it can hold. We have different colors to test as well.

Project Plan
Briefly describe your group's plan for the next 4 weeks, including major tasks that will be completed each week.

Week 1 Narrative
This week i had task to figure out if the colors matter for the strength of the materials. I was thinking that color should have no problem because it was the same material use with different colors. Task was simple but was too complicated, first when I looked up on the internet for some info, i found that there are more than one kind of material. There are material for making hard things like guns and toys that dont break and there are materials for minor purpose like for making part that can run and work for 5 time use and then make a new one. That all i did for this week.

Week 2 Narrative
This week we had to find a way to design of how to pull the filament vertically using at least 50 LBS or more. So far the designs that we came up with is not possible to test because the strings is plastic that means even if we tie some thing at the end like 50 lbs weight it will slip off or will break from the end, and that is not what we want. We have to use enough material about 3 to 4 inches of string to test the strength of it by just hanging it down with 50 lbs or more. Few question that I came up with with looking up idea was that. Can we make the string like a "U" shape and then hang a weight?. Another was that if glue is helpful can we use the glue to hold something like fish hook at the end. Top two picture shows the design that we will be finalizing and using it to test our thread and bottom two were the design that we had initially. Final design consists of two small blocks that will be screwed together with a thread passing through and on side of the blocks it will have a hole to hook the weights.



Week 3 Narrative
This week my task was to determine the materials need to make our design prototype. We could use many things like plastic blocks, bricks, carbon fibers but that would make it more expensive, other than that it would be strong enough to hold weights for testing. I decided to go with woods as it was easily available and its strong to hold certain amount of weights, it can also be drilled easily and is light enough to carry around. Most important thing that we had to keep in our mind was that it has to be balanced equally on all side, and if its not the filament can break easily without giving any kind of pressure. For this design we went with 2 blocks of 2 x 3 inches and drilling hole in the bottom center to pass the small part of filament through the blocks and into hole to keep it in its place while we keep adding weights to it. Next we added 4 screw, 2 on each side and 1 or each corner, which will make 2 blocks evenly pressed on filament when tightened up. We didn't had something to put the weights on so we decided to screw 1 x 3 inches long wooden strip behind the blocks horizontally to hooks the weights on. we are expecting that our design will be able to hold around 50 lbs less or more but the actual test has not been done yet. We had some conflicts about how to hold everything that will weigh over 50 lbs, I am still going with holding the other side with pliers and if that does not work at the end we all decided to make one more prototype for the other side of the filament and hang it. Below picture shows how are product will look like, left one shows the dimensions that we will aim for, middle one is our side view with 2 visible screw that are screwed in through and last but not least pic its about how we will test, except the top parts of how we will hold it is not shown.







Week 4 Narrative
Our final week had nothing much to do but in our meeting we built the second prototype for the other side of the filament that solved our problem to hold the filament that weighs over 50 lbs. This week I had to test the filaments of different colors. I went ahead and tested 6 colors and recorded the results. For my results, white, grey, black and gold did hold the weight of 20 lbs for more than 20 secs. I saw that the filaments that broke was not from the edges but from the middle where stress actually occurs. I was thinking that it should break from the edge of the wood because thats were the filaments get rubbed against and gets weak. Also the material played a key role to the test, we saw that harder the material faster it broke. yellow and red had material that didn't snap when we bend with our hands but other snapped. In addition, our group theses was that the colors that snapped will break faster while doing vertical test and thats exactly what happened. Due to shortage of the materials we could only test about 25 pounds and yellow passed all the test.