3cm by 6.325cm by 0.2cm ghost clip

Lesson Plan: 

With a partner, recreate a ghost clip using Solidworks.  The goal is to be both accurate and coordinated with my partner to create a replica ghost clip with our initials engraved on it.

Construction Instructions:

Constraint Box

• Create a center rectangle for construction with center at origin, have construction lines through rectangle midpoints
• Smart dimension rectangle to be as shown on drawing.

Triangles

• Create 3 collinear horizontal construction lines above the bottom of rectangle
• Set construction lines to be equal and collinear
• Dimension construction lines as shown in drawing
• Create midpoints on the outer 2 construction lines
• Make vertical construction lines down from midpoints of the 2 construction lines at the bottom
• Connect points to create 3 triangles at the bottom

Smile

• Make another horizontal construction line above the 3 triangles.
•  Dimension construction line as shown in drawing
• Create vertical line above and to the right of the previous construction line
• Dimension the vertical line as shown in drawing
• Connect intersection of construction line and rectangle midpoint line with the bottom endpoint of the previous line with a new line
• Mirror those two lines over the rectangle midpoint line
• Offset previous 4 lines and cap ends with dimensions as shown in drawing

Top half-circles

•  Create 4 horizontal and collinear construction lines under top of rectangle
• Set all 4 as equal
• Dimension them as shown in drawing
• Create 4 3-point arcs from endpoints of lines to top of rectangle

Eyes

• Create horizontal construction line under previous 4 construction lines
• Dimension it as shown in drawing
• Create circle on left half of line
• Dimension circle as shown in drawing
• Mirror circle over midpoint line

Design Choices:

• At first my partner and I collaborated on making a diagram in 2x scale on graph paper
• We used the squares to properly place the features on the ghost, and then measured them to plot dimensions

• After that, we plotted out a plan for what steps we would take to model the ghost in Solidworks and what order we would take them in
• Then we went to Solidworks and started modeling
• We started with our constraint box, and made relations for some of the basic parts we would use for our shapes on the outside

• Then we modeled the triangles on the bottom

• We kept the dimensions and plan the same for the beginning part, but later had to change the plan for how we would do the smile. We would have created one side, offsetted it, then mirrored, we instead made the two outer lines, mirrored them, and then offsetted and capped the ends, which resulted in a smile which looked better

• After that, we modeled the circles on the top
• Instead of modeling each one individually, we ended up having to mirror some of them to properly fit the sketch

• Then we created the eyes and had to edit some of the dimensions for them as they appeared too far apart

• After extruding the sketch, we realized that it was left in the original 2x scale of the drawing, we we had to add a 0.5x scale to the file, because we wanted it to be as close to the size of the original ghost as possible