3D Print -Onshape Design

For the CAD part of the project, I decided to draw a serving plate with a dome cover, to be consistent with the theme of cooking and recipes.

1- Sketching the dome cover

First, I drew the round, dome-like lid that would be placed to the top of the plate. First I drew a circle and the divided it 4 pieces using lines while sketching. I further trimmed the excess parts of the circle to just get the 1/4th of it, the top right part. I then followed the same process and drew a smaller one inside the original one in order to have 2 mm of thickness, as observed below.

Then I added the top part which the cover is held, and drew a glass-like figure so that it would form a circle at the end, when revolved.

I thought it would've been easier if I use the front plane and then fully revolve it around the y axis, or the Edge of Sketch 1, using the Revolve tool.

2- Sketching the plate

For the bottom part, the plate itself, I first sketched an ellipse on Sketch 1 and then a circle that is relatively smaller inside, in Sketch 2. The dome cover would fit the circle, and the rest of the parts of the ellipse would form the edges of the plate. I further extruded the elliptical bigger part for 40mm downwards, and extruded the circle only 5mm because the Arduino board would fit the inside, which would be hollow.

Using the Fillet tool, I made the bottom edges circular and curved them to have a more plate-like look. So the bottom of the plate became slightly smaller since the Fillet tool curved inside at a radius of 10mm. I used the Fillet tool again for the top part, between the circle and the ellipse, to provide smoother edges as part of a plate look.

Then, in order to make the inside of the shape hollow to fit the Arduino board, I used the Shell tool with a thickness of 2mm. The inside became hollow all the way up, matching the thickness of the upper circle and the wider ellipse.

Finally, I sketched a rectangular shape on the top of the plate, on the circle, to fit the OLED screen of Arduino. I used the similar measurements from the previous assignment and placed it at the middle of the plate. I further extruded it, but this time to remove the solid, not add towards downwards.

3- Assembly

Finally, before printing, I wanted to have an idea of the final product and make sure that the dome cover would fit the bottom plate precisely, so I merged the two designs, or two part studios, in Assembly. I used mate connectors and then further Fastened Mate to match the edge of the dome cover with the edges of the circular part inside the plate. I found that they fit one another and when I eventually got them printed, luckily it was the same case.