Miniature Train
Define a problem
During this project I had to make 10 parts to a miniature train in inventor including a train track. I put together the train in assembly. After that I had to dimension all the parts in a pacific way. Finally I had to make the train go on the track and move at least one direction.
Generate Concepts
I started modeling and reading the dimensions when you first gave the packet to me and I started off with the train body. The train body was very complicated but I started off by making the base L shape, Then I make the circle thing that goes down the middle. Finally I made all the filets , holes, and arcs needed.
Develop a solution
Construct and test prototype
1) Train Body
2) Stack
3) Hitch Magnet
4) Hitch Peg
5) Wheel
6) Axel Peg
7) Linkage Arm
8) Linkage Peg
9) Cow Catcher
2) Stack
3) Hitch Magnet
4) Hitch Peg
5) Wheel
6) Axel Peg
7) Linkage Arm
8) Linkage Peg
9) Cow Catcher
Evaluate the solution
When I finally finished assembling my train and making sure it had no degrees of freedom, I asked my friend, Mihail to look over my assembly. Mihail told me that I need to offset my wheels a little more. So I when back and made the offset bigger than before. After I did that Mihail told me that my train assembly was done and that everything else was correct.
Present the solution
This project was pretty fun even though there was some ups and downs. Building all the parts to the train was pretty easy but the only trouble I had was finding some of the measurements. For example, finding the train full height measurement was tricky but after look at the picture and the other dimensions I finally figured it out. After I was finish building all the parts I started on my assembly. The assembly was very hard and I was having lots of trouble and sins you weren't there I asked some of my other classmates to help and they try but could not fix my problems. Finally I decide to watch some videos on YouTube to figure out what I did wrong and after watching a couple I finally found out how to fix my problem. So I went back and fixed my problem and then I asked Mihail to make sure my train was right. Mihail told me that I needed to offset my wheels so then he showed me how to do that. So overall I had so ups and many downs but the project was fun and I enjoyed it. The purpose of a broken view is to save space, for example I used it on the linkage arm dimension picture above to save room (it still tells you the same length the object in just smaller). The purpose of an auxiliary view is to show a view from the right angle to get the right look at it. For example I used it on the cow catcher dimension picture above to get a view from an angle so I could dimension it right. The purpose of a section view is to see a cut out part of the object. For example I use it on the wheel dimension picture above to show a 3 quarter view of it. Also there is 2 types of section views, a half section view that shows 3 quarters of the object and there is a full section view were you show half the object. Symbols are used to describe holes instead of using words because it saves room and it is neater. If you used words it would take up to much space and would take to long you type. Finally the reason we need tolerances is because you need to know it because if you are off by the littlest bit it may not work. So we need the tolerance to help us know what would work.