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Design and Print a Wheel

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This is an overview of how to design a wheel using 3DS Max, which I then printed out using an Objet 3D printer. While the buttons may be slightly different in other 3D software packages, the process for doing this should look roughly the same. Follows are step-by-step instructions for creating a 2-part wheel consisting of a hub and a tire. It may seem slightly complicated, but it is a surprisingly straight-forward operation.

I have also included a file for a pivot. If you insert a shaft through the wheel, you can use the pivots to mount it and make it spin. The wheel and pivots can be scaled to meet your needs.
wheel.max408 KB
 
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Step 1: Circles

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Make a small circle which will be the size of your inner hub.

Make a second larger circle which will indicate the outer boundary of your spokes.

Step 2: Duplicate

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Duplicate the inner circle on top of itself, such that you have two.

Step 3: Make a cut out

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Create an egg-shaped spline (without an outline).

Convert it to an editable spline by right-clicking on it's name in the modifer tab.

Select the red "points" button.

Modify the shape of the egg to your liking. This will be the negative space between the spokes.

Step 4: Change pivot

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Select the Hierarchy tab.

Click on "Affect Pivot Only"

Click the rotation tool, and then change the Z-rotate option to 0.

Unclick "Affect Pivot Only"

Step 5: Create an array

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Under the "Tools" drop-down menu, select "Array"

Click "Preview"

Change the Z-rotate to roughly 40. If the copies appear to be touching, increase this number

Finally, increase the number of copies until they go all the way around your wheel.

Step 6: Attach

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Select the outer circle and then go to the Modifiers tab.

Right-click on the circle's name and make it an "Editable Spline"

Click the "Attach" button.

Next, click on all of the egg-shapes. As you click on them, they should change color.

Also, click on one of the inner, smaller, circles.

Step 7: Extrude

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From the Modifiers list, now select "Extrude"

Set the amount of extrusion to be about a value of 1.
ongara_011 year ago
what type machine u used?
randofo (author)  ongara_011 year ago
Objet
Pro

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