Summary

This is a brain gear. Rotate one gear and they all spin.
https://www.youtube.com/watch?v=0SV_UyZj2rA

Print Settings

Printer Brand:

MakerBot

                                            <p class="detail-setting printer"><strong>Printer: </strong>                     <div><p>MakerBot Replicator 2</p></div></p>                                                                                <p class="detail-setting rafts"><strong>Rafts: </strong>                     <div><p>Doesn't Matter</p></div></p>                                                                                <p class="detail-setting supports"><strong>Supports: </strong>                     <div><p>No</p></div></p>                                                                                <p class="detail-setting resolution"><strong>Resolution: </strong>                     <div><p>200</p></div></p>                                                                                <p class="detail-setting infill"><strong>Infill: </strong>                     <div><p>20%</p></div></p>

How I Designed This

This was designed using an existing Brain Gear and a modified gear. It was designed to be printed without support, using 45 degree angles.

Instructions

Print 12 P-Brain Gears
Print 5 Brain Gear links
Print 1 Brain Gear Link to base
Print 1 base
Assemble carefully using epoxy to bond links
Rotate and be amazed. :)

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Project: P-Brain Brain Gear

            <p class="detail-title"><strong>Overview & Background:</strong></p>            <div><p>This project will provide the opportunity to execute and learn basic printing techniques while printing a tangible object to interact with. </p></div>                <p class="detail-title"><strong>Objectives:</strong></p>            <div><p>To learn plating.  The 45 degree rule.  Layer height and lamination.  Part removal from build plate.  Post printing assembly and finishing.  Intro to gears.</p></div>                <p class="detail-title"><strong>Audiences:</strong></p>            <div><p>10 and up.</p></div>                <p class="detail-title"><strong>Subjects:</strong></p>            <div><p>Math.  Science.  Math Art.  Scientific Art.  Mechanical Engineering.  STEM.  STEAM</p></div>                <p class="detail-title"><strong>Skills Learned (Standards):</strong></p>            <div><p>Plating.  The 45 degree rule.  Layer height and lamination.  Part removal from build plate.  Post printing assembly and finishing.  Intro to gears.</p></div>                <p class="detail-title"><strong>Lesson/Activity: </strong></p>            <div><p>@200micron  </p><ol><li>Print 12 P-Brain Gears  </li><li>Print 5 Brain Gear links  </li><li>Print 1 Brain Gear Link to base  </li><li>Print 1 base  </li><li>Assemble carefully using epoxy to bond links  </li><li>Rotate and be amazed. :)</li></ol></div>                <p class="detail-title"><strong>Duration:</strong></p>            <div><p>3 Days</p></div>                <p class="detail-title"><strong>Preparation:</strong></p>            <div><p>You will need:</p><ul><li>1 3D printer.</li><li>2 part Epoxy (JB-Weld works well).</li></ul><p>You must start the project by ordering the color/s of filament you wish to use to print with.  It is recommended that you use multiple colors for the gears to highlight them spinning.</p></div>                <p class="detail-title"><strong>References:</strong></p>            <div><p>More information can be found for further study @<br><a rel="nofollow" href="http://reprap.org/wiki/BrainGear">http://reprap.org/wiki/BrainGear</a></p></div>

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Rubric & Assessment:

            <div><p>A basic understanding of how a 3D printer can assist in Mechanical Engineering.</p></div>                <p class="detail-title"><strong>Handouts & Assets:</strong></p>            <div><p>Class 3D printer and filament and curious kids.</p></div>

P-Brain Gear Gear

P-Brain Gear Gear

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