Define A Problem
Generate Concepts
Develop A Solution
Construct and Test Prototype
.I used the mate and flush constraints to make my yard art not move. The flush constraint type makes two sides of a part stick next to each other. The mate constraint type positions selected sides face to face. When the mate constraint is used it removes three DOF (one transitional movement and two rotational movement). When the flush constraint is used it removes three DOF also.
This is my Yard Art with no degrees of freedom
Evaluate the Solution
My deer at first could not withstand a tipping force of 50 lbs. To make my deer be able to withstand a tipping force of 50 lbs, first I shortened the legs which decreased the height which was in the denominator. Then I decreased the height of the body and increased the width. This decreased the height of my yard art (denominator) and increased the weight and distance to COG (both in numerator). This helped me make my yard art withstand a tipping force of 50 lbs. Now my deer can withstand a tipping force of 84.6 lbs. I compared my final design to the design criteria by seeing if my yard art weighed under 125 pounds. Also I made sure my yard art could withstand a tipping force of 50 pounds. Also another thing is I made my deer 3 parts because the design criteria said I had to. Lastly I made my deer out of a type of wood because you had to.
Present the Solution
I thought that this project was very fun but challenging. If one part was wrong you would have to fix everything. The efficiency of a solid model was very good. It helped with creating the yard art in a quick and timely matter. Also the location of the modeling the gird dictated where the Center of Gravity would be on your model. For the yard art you had to make three separate parts and connect them. All of my parts connected well but there were still degrees of freedom. To fix this I made holes in the body part and made cylinders in the head and tail parts to fit in the holes in the body part. This worked very well to get rid of the degrees of freedom. I thought that my second major inventor experience was pretty good. I used a couple new features to make my deer better. One technique I used was because it was hard to connect things to cylinders I made a rectangular prism and then fillet it to make it look like a cylinder. I ran into a bit of trouble when trying to make my deer withstand a tipping force of 50 pounds. Also I had trouble figuring out what wood to use because they had different masses. Lastly I thought that the Yard Art project was really fun and I would do a project like this again.