This 2D extruded turtle is the perfect compliment to any desk or space! The rounded shell and thin legs and arms makes it a perfect decoration. Furthermore, this turtle is the perfect gift for a person of any age, especially someone who loves turtles. Overall, this turtle is approximately 8 cm wide, 8 cm long, and 1cm thick.
This project was created in tandem with a partner: https://www.thingiverse.com/thing:3175421
Overview and Background
After brainstorming a couple ideas, we ultimately decided to use this turtle image as our inspiration:
The first step of our design process was scaling the image to the size we wanted (8cm x 8cm) through the following process:
Next, after calculating the needed dimensions to fit within the constraints, we decided on the order to create the turtle in Solidworks.
We agreed on the following order:
- Base outline of the Turtle
a. Shell outline
- Base extrusion (blind) up 0.6 cm
- Arm and leg accent cutouts (sketch on one half, mirror, then cut-extrude)
- Shell cut details
- Cut all the shell design out
- Fillet all the edges and outlines of the cutouts.
Note: Steps 3 and 4 were completed by drawing the sketch on only one half of the turtle, then mirroring over the x-axis and y-axis, depending on the case, to create symmetry and save time.
(Due to the fact that we needed to create the exact same model, we agreed to use the Smart Dimension tool to form and show the same dimensions as well as fully define our sketches)
As we started to build our model and sketches, we changed the dimensions a lot in order for it to be visually pleasing and unique. Specifically, the dimensions of the cutouts for the shell details. Also, we simplified the design by not following our inspiration picture exactly, and instead, deciding on other dimensions as we created the cut pattern.
Furthermore, as we completed the various aspects of our design, we began to be more efficient in using tools and would often redo different parts with each other after individually discovering a more efficient way of creating the different sketches and cuts. For example, since we had trouble with relations screwing up, we concluded that the we should create only 1/4 of the inner shell design that we then could mirror over the y and x axes to create it full circle.
Finally, after realizing the uniformity of using too similar ellipses and shapes, we also decided along the way to complicate the dimensions and cuts in order to provide more variety in the size and shape of components of the shell design features in order to display a more interesting shell pattern.
Extra Details Added
After working both side by side and separately, we regrouped and confirmed that our sketches were exactly the same. At this time, the turtle was flat on both sides with the same thickness throughout.
Since we had extra time before the deadline, we decided to add extra details by cutting the legs, arms, tail, and head down to provide more definition between the shell and the limbs, thus providing more accuracy and contrast.
We completed this together, then we agreed to make the shell curved in order to make a more realistic shell. (Note: Our instructor provided insight into the process of creating the curved shell)
We extruded the shell further up, and created a perpendicular sketch that would create the rounded effect after using the Revolved Cut tool. After multiple iterations of the revolve in order to keep the overall thickness dimension within the constraints (1cm), we figured out what worked and then refilleted the cutout design of the shell.
Lesson Plan and Activity
Problem Statement: With a partner, you will design a “2D” placard using Solidworks. You and your partner will have the same design which meets the constraints below, and you will EACH use Solidworks to create your design.
Should have a flat back; detail will be on the front side
Should fit inside a box that is no bigger than 65cm2 in area when lying flat
Should be no more than 1cm thick
Detail will be made using sketches that are extruded to different heights
Sketch must begin with a constraint box, center-rectangle created from the origin
Dimensions should be detailed but efficient
Sketch must contain zero error messages
Sketch must be fully defined when complete
Demonstrate efficient use of “Construction Lines”/”Reference Geometry”
Demonstrate efficient use of “Offset Entities”
Demonstrate efficient use of “Manual Relations”
Demonstrate efficient use of “Smart Dimensions”
Demonstrate efficient use of “Mirroring”
Demonstrate efficient use of “Linear Patterns”