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Week 3 : 3D modeling using Fusion 360

I could download Fusion 360 with a free 3-year educator's license. The commands looked similar to those in Autocad. I wanted to design a box which would have a sliding extrusion on one face and a corresponding track on the adjacent face. The idea is to design interlocking single-message communication devices to make it scalable for kids using Alternative and Augmentative Communication (AAC).

Here is the design file (.f3d)

I started with a square with 10cm sides.

I chose Sketch>Fillet to create smooth edges for the square.

I chose 'Create>Extrude by 25mm. Looking back, I think that was too small for what I had in mind.

"I chose one face of the box to create a sketch on it."

I created a 'center rectangle' on the chosen face of the box and extruded it outward to 1mm distance.

I used the 'offset' tool to create an outer rectangular shape at an offset distance of 0.5mm.

I extruded the outer square to a distance of 1mm.

This is the side view of the resulting structure (6.2mm wide), which I intend to slide in a corresponding track.

On the adjacent side, I started sketching to make the track. I drew a rectangle, slightly wider (6.5mm).

I drew two smaller rectangles for the top of the sliding track. I trimmed away the line in the middle.

Front view of the resulting design.

In this view, you can see the extrusion on one side and the track on the adjacent side.