Week 2: 2D and 3D Design

2D Design

So this week, we got an introduction into LibreCAD and Fusion 360. The Assignment was to make a 2D and a 3D Design of a possible final project.

To start with the 2D project, I decided to create a little mini picnic table for fingerboarding. As a model, I decided to use this blackriver-ramps Table.

It started, by creating the base piece in LibreCAD. I converted the length, width and height and rounded them. I went with a length of 30cm, a width of 16cm and a height of 8cm. Then I decided that the table should be twice the width of the banks.

base piece

Next, I created the top pieces and thought added notches so the pieces could snap together. To add notches I used the tim tool.

bank piece

Using the mirror tool, I created the second bank piece, while keeping the original.

bank piece, mirrored

Then I drew the top, main table part.

top piece

Then I drew a hole in the base piece and added a little supporting piece.

support piece

To finish, I only needed to duplicate the base piece using the move tool.

duplicate base piece

I decided to change the place where the top part attach to the base, so it wouldn't be right at the edge. To do that I deleted the notched edges and added holes in the top parts.

new attachment system

Then, after converting the other pieces I was pretty much done.

new attachment system on all parts

cloud_download Download table.dxf

3D Design

I wanted to put the table together in 3D so, the next step was to somehow import the file in Fusion 360.

To do that, I uploaded the table.dxf to Fusion 360.

upload button

After uplaoding, I could open up the file as a Fusion 360 Project

Initial open

I used the extrusion tool to extrude a 5mm thick piece for every piece.

Extrusion

Then, I used the move tool, to fit the pieces together.

Gif of me putting the pieces together

I then looked for a tool to round of the edges. The fillet tool was perfect.

I rounded of the edges using the fillet tool.

Fillet Tool Fillet Tool

To make the bench better for grinding, I wanted to add a metal rail to the top part of the table.

I started by creating a new sketch and drawing the outline of the rail.

Rail Edge

Then, I extruded it to 300mm with the extrusion tool.

Extrusion of the Rail

After that, I had to move it to the correct position and make a copy for the other side.

But I realized I somehow merged almost the whole table.

Merge Bug

This is a big problem, since I can't move the rail alone anymore.

I went back and tried drawing the rail again, but this time leaving a little space.

Second Try drawing the rail

Hopefully now, when I extrude the rail It won't somehow merge again.

Luckily, this time it worked.

Extrusion of the new Rail

Now back to the move tool.

Moving the Rail to the correct position

I then used the move tool (checking the "create copy" box) to copy the rail to all edges.

Adding all Rails

Finally, my table was complete.

Gif of my table spinning

cloud_download Download table.f3d

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