After surviving on 3D-printed components held in place with tiny screws, we were finally ready to move on to the big stuff. As our ramp would not have to bear any significant weight, we can get away with using lighter 20mm x 20mm aluminium profiles. This decreases the overall weight and size of our final product, and allows us to directly attach our 3D printed components to the profiles without their bulk getting in the way.

[Image of aluminium profile side view]

We decided on using a 30cm long ramp, because the measuring tape was in use so we had to use a ruler it was long enough for us to have enough room to load and manipulate multiple eggs, but not too long that the device would become too bulky and too tall for the average user to load eggs into the top.

[Insert Image of joint with screws inserted]

The profiles would be connected with 3D-printed 20×20 joints, secured by M4 screws and nuts. These are capable of attaching the profiles at a 90-degree angle, or to connect them between different heights to allow constructing upwards between levels, which is necessary for our proposed design.