Servo motor and PWM controller LEGO connectors

prusaprinters

<p>Connectors with LEGO-compatible studs for mounting small (SG90) servo motors - plus a LEGO compatible ‘tile’ connector for a PCA9685 PWM controller.</p><p>The connectors can be used:</p><ul><li>either to build simple test beds for developing control code with (say) a Raspberry Pi or a simpler microcontroller like the ESP32, or</li><li>for building complete LEGO constructs with ‘mechatronic’ moving parts.</li></ul><p>More detailed context when used with a Raspberry Pi Maker Kit PCB assembly is available at <a href="https://onlinedevices.co.uk/RPi+Maker+Kit+-+Servo+Motor+control"><strong>this link</strong></a>.</p><p>All the components use 1.75mm PLA and a layer height of 0.15mm with print details for each component produced on an i3 Mk3 shown in the table below.</p><figure class="table"><table><tbody><tr><td><strong>component file name/description</strong></td><td style="text-align:center;width:70px;"><strong>needs support (Y/N)</strong></td><td style="text-align:center;"><strong>brim (mm)</strong></td><td style="text-align:center;width:85px;"><strong>filament&nbsp;</strong><br><strong>length (m)</strong></td><td style="text-align:center;width:70px;"><strong>print time&nbsp;</strong><br><strong>(i3 Mk3)</strong></td></tr><tr><td><i>servo_horizontal_LEGO_case01_repaired:</i> connector that mounts the servo horizontally with the &nbsp;drive shaft&nbsp;vertical</td><td style="text-align:center;">Y</td><td style="text-align:center;">10</td><td style="text-align:center;width:85px;">3.72</td><td style="text-align:center;width:70px;">1h 45m</td></tr><tr><td><i>servo_vertical_LEGO_case01_repaired.stl: &nbsp;</i>connector that mounts the servo verical with the &nbsp;drive shaft&nbsp;horizontal</td><td style="text-align:center;">Y</td><td style="text-align:center;">10</td><td style="text-align:center;width:85px;">4.05</td><td style="text-align:center;width:70px;">2h 11m</td></tr><tr><td><i>PWM_module_LEGO_tile02.stl</i>: connector that mounts the PCA9685 PWM controller on a LEGO-like ‘tile’</td><td style="text-align:center;">N</td><td style="text-align:center;">5</td><td style="text-align:center;width:85px;">1.82</td><td style="text-align:center;width:70px;">46m</td></tr></tbody></table></figure>