The Chess Rook

3D Printing Lesson (Spline)

Using Autodesk Fusion 360

Shorthand Build Menu��Spline – 5-6 points – sketch a profile of one side of the rook�Revolve– 360-degree revolve to make a symmetrical 3D cylinder to your profile�Cylinder – 20 mm diameter x 5 mm high – negative space at top of rook�Box – 25 mm x 10 mm x 2 mm thick – copy and place three times (negative space for slots�

Begin by selecting <Sketch> <Spline>��Select the x-z plane��Sketch a profile of the right side of the rook as if you cut it in half��Use 5-6 points�

Select <Sketch> <Line>; Select the x z plane��Start a horizontal line from the bottom of the spline to the origin��Start a second vertical line from the origin; extend the vertical line to the height of the spline.�

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Enclose the shape with a 3rd vertical line.��You know you have enclosed the surface when the interior turns yellow��������

Select <Create> <Revolve>��Click on the enclosed object (yellowed); then double click on the vertical axis to create a 360-degree 3D shape from the enclosed spline you just created.�

If the profile looks too fat for a rook, go back to the first step (<Sketch> <Spline>) and modify the profile to be thinner.��You may repeat Step 4 and Step 5 several times until you are satisfied with the design of your rook�

Finished profile

Top cutout – start with <Create> <Cylinder>��The cylinder in the drawing is 20 mm diameter x 5 mm high.��The cylinder is initially placed on the build plate in the x-y plane�

Select <Modify> <Align>��Select the bottom center of the cylinder first.�

Then select the top/center of the rook��Click return to move the cylinder into position aligned on top of the rook�

Select <Modify> <Move/Copy> to lower the cylinder cut-out 3 mm into the body of the rook

Select <Modify> <Combine>

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The target is the rook body; the tool is the cylinder.

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Choose cut and the cylinder changes to pink

This is how your rook should look with the cylindrical cut-out in the top of the rook body

The top turret is made by cutting out three boxes��<Create> <Box> in the x-z plane. The box in the drawing is 25 mm long x 10 mm high x 2 mm thick�

<Modify> <Move/Copy> the box to the top center of the rook on the x axis.��Be sure to click copy to save a copy of the box�

<Modify> <Combine>�The target is the rook body; the tool is the box positioned on top, and the command is cut. �

The box that is the tool to cut will turn salmon-colored

This is how your rook should look after the first box is subtracted.

Copy and move two more boxes. They should be rotated <+60 degrees amd -60 degrees>��Your finished rook should look like this.�

Personalize your rook; add your initials cut into the bottom so that we can identify your rook if it is printed along with 5+ other rooks.��See Chess Pawn Step-by-Step instructions on how to engraved initials to 3D printed objects�