Week 5: Utilizing your Sketches and Models for CAD

I created the third iteration of my CAD stir model. When I created this model I wanted to focus on the user’s experience. One major change that I created in the design was the handle. Instead of being square which I would imagine is uncomfortable to hold and might leave marks in the hand, I created something more ergonomically friendly. The handle has round ridges that are designed to fit the hand comfortably. The handle would also be made out of soft silicone that surrounds the metal handle to make sure it is comfortable to use while also sturdy. 

To create the handle I connected two lines with an arc. I then created a spline using the spline tool and used reference lines to map out each point I wanted the spline to hit. After creating the shape I made sure to constrain my sketch with dimensions. I then used the “revolve” tool in fusion to revolve the “spline” around the horizontal line.

I created the base of the top the same way as my second iteration. I created 8 circles and gave them dimensions. The first 6 circles are 5 mm apart while the 6th and 7th circle is 10mm. The 8th circle is in the center and is 8mm in diameter for the arm that stirs the pot.

  I then created a 50 mm reference line from the center of the top of the outside circle and connected the line to each side at a 90-degree angle to connect the inner circle to the outer without disrupting the track in the middle where the spoon will go. I then extruded the shape upward 10 mm. After, I extruded the middle two circles up 5mm so that the top could cover two sizes of pots. The top is made out of steel so that the circle can be structurally sound.

I then created another sketch on the y-axis for the arm that rotates the spoon in a stirring motion.

I created a tangent line and connected the horizontal line with the arc command. I also added a circle on the top of the X plane and swept the circle on the sketch I made above. This created an 8 mm diameter for the arm. After that, I offset a tangent plane to be right in the center of the arm created a donut shape, and extruded evenly. 

The blue circular part is also made of silicone so it can stretch to your spoon size without damaging the top of the spoon. I made the arm a different component and then made it into a joint in order to simulate the motion of the arm. The arm moves to the left and stops at one side then proceeds to move right with 280 degrees of movement.