Ghost Clip

 Its sleek and compact design, along with the paper clips versatility is sure to improve any collection of office supplies. With dimensions of 6x13x0.15cm, the clip is approximately the same size as a smartphone, allowing for easy transportation and accessibility for all your paper clip needs. I made this in collaboration with my partner, Aly Taha. Here is the link to his project (https://www.printables.com/model/610826-ghost-clip).

Lesson Plan and Activity:

With a partner, you will recreate your ghost clip using Solidworks. You and your partner MUST have identical files that you create by collaborating on each step, one at a time.

Assembly/Construction Instructions Section (if needed):

Constraint box

•  Draw 6 cm x 13 cm box
• Create a center rectangle on the origin (from midpoints)
• Create a vertical centerline 

Teeth

• 1 cm above the bottom of the constraint box, draw 3 construction lines across the width of the ghost (Lines A1, A2, A3)
• Use manual relations to set them to be equal with a length of 2 cm 
• Create an isosceles right triangle with legs of 1.4 cm and a hypotenuse of 2 cm going from a right angle at the bottom of the constraint box 
• Do this two more times to create 3 equal triangles

Semi-Circles

• D0.75 cm below the top of the constraint box, draw 4 construction lines across the width of the ghost (Lines B1, B2, B3)
• Use manual relations to set the lines to be equal with a length of 1.6 cm 
• Create an arc with a radius of 0.75 cm on each 1.6 cm segment
• Do this 3 more times to create 4 equal semicircles with a radius of 0.75 cm  

Eyes

• Draw two horizontal construction lines 1.6 cm and 2.7 cm below Line B (Line G and H)
• Draw two vertical construction lines 1.2 and 2.3 cm away from the right side of the ghost (Lines I and J)
• At the midpoint of the distance between either pair of construction lines, create a center point circle with a radius of 0.55 
• Mirror the circle over the centerline.

Mouth

• 3.5 cm from the bottom of the constraint box, draw a horizontal construction line (Line C)
• 1.2 cm away from the left side of the constraint box, draw a vertical line with a length of 4.4 cm
• Create a horizontal construction line 0.8 cm above Line A (Line D)
• Draw a line from the endpoint of the vertical line to the intersection of the Line D and the centerline
• Select these parts of the mouth and mirror over the centerline
• Offset these lines with a length of 0.6 cm between them
• Add end caps 

Mouth

• 3.5 cm from the bottom of the constraint box, draw a horizontal construction line (Line C)
• 1.2 cm away from the left side of the constraint box, draw a vertical line with a length of 4.4 cm
• Create a horizontal construction line 0.8 cm above Line A (Line D)
• Draw a line from the endpoint of the vertical line to the intersection of the Line D and the centerline
• Select these parts of the mouth and mirror over the centerline
• Offset these lines with a length of 0.6 cm between them
• Add end caps 

Design Choices: 

To ensure our ghosts were as similar to the source as possible, my partner and I created a sketch of the original ghost before sketching it in Solidworks. Using a ruler, we measured the dimensions of each part of the ghost and copied it onto a piece of graph paper. After completing the sketch, we created a plan of what we would do to recreate it in Solidworks. However, we encountered a few issues. 

The first issue we encountered in Solidworks was when we were making the teeth of the ghost. Our original plan was to make a singular construction line and split it into three equal pieces, but Solidworks made it difficult to separate a line into three parts. Instead, we created three lines and used manual relations to make them all equal.  

We encountered the same issue when we tackled the bumps on top of the ghost. Our original plan was to make a singular construction line and split it into four equal pieces, but Solidworks made it difficult to separate a line into four parts. Instead, we created four lines and used manual relations to make them all equal.  

However, this wasn’t our only diversion from the original plan concerning the bumps. When we measured the bumps using a ruler, we found that the diameters were 1.6 cm for all of them. After going into Solidworks though, we found that each bump could not have a diameter of 1.6 cm, or else all four bumps would not fit in the 6x13cm constraint box. Thus, we changed the diameter of each bump to 1.5 cm to make them match up with the 6x13cm constraint box

This was our final sketch in Solidworks