Summary

This is a Reuleaux Car I made based on something I saw on twitter. Reuleaux triangles are constant width shapes than can act as circles in certain situations.

Print Settings

Printer Brand:

Ultimaker

                                            <p class="detail-setting printer"><strong>Printer: </strong>                     <div><p><a rel="nofollow" href="https://ultimaker.com/" target="_blank">Ultimaker 2</a></p></div></p>                                                                                <p class="detail-setting rafts"><strong>Rafts: </strong>                     <div><p>No</p></div></p>                                                                                <p class="detail-setting supports"><strong>Supports: </strong>                     <div><p>No</p></div></p>

Post-Printing

Assembly

            <div><p>First I attached the wheels using a standard coffee stirrer straw, then I put a thin bead of hot glue around the outside for traction.  </p></div>

How I Designed This

This is version 5

            <div><p>First I tried several different versions of concentric Reuleaux triangles and they all had various levels of bounciness.  I wanted a smooth ride for my car so I kept going.  </p></div>                <p class="detail-image"><img src="https://cdn.thingiverse.com/assets/77/5c/9f/99/76/reuleauxCarV1.jpg"></p>            <p class="detail-caption"><strong>V1</strong></p>                <p class="detail-image"><img src="https://cdn.thingiverse.com/assets/c3/04/4e/6a/7f/reuleauxCarV2.jpg"></p>            <p class="detail-caption"><strong>V2</strong></p>                <p class="detail-image"><img src="https://cdn.thingiverse.com/assets/21/6f/e5/e0/c8/reuleauxCarV3.jpg"></p>            <p class="detail-caption"><strong>V3 (tried to round out the points)</strong></p>                <p class="detail-image"><img src="https://cdn.thingiverse.com/assets/31/e9/06/61/61/reuleauxCarV4.jpg"></p>            <p class="detail-caption"><strong>V4: Tried rounding everything!</strong></p>                <p class="detail-title"><strong>Realization</strong></p>            <div><p>Finally I realized by watching the video over and over again that their outside wheel wasn't a reuleaux triangle so I measured the width of my wheels and even though the overall width was constant, the distance between the inner wheel and outer wheel was not!  So in version 5 , the inner wheel is a true reuleaux triangle and the outer one is a faux reuleaux triangle.  Besides being fun to say, it works!   </p></div>                <p class="detail-image"><img src="https://cdn.thingiverse.com/assets/91/e3/bd/ab/2a/reuleauxCarV5.jpg"></p>            <p class="detail-caption"><strong>V5</strong></p>