OKAY Synth

thingiverse

<iframe src="https://player.vimeo.com/video/235418217" width="640" height="360" frameborder="0" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe> https://vimeo.com/235418217 <br /> Oh, nothing fancy, just an analog square wave synthesizer... That's OKAY! - <strong>Monophonic:</strong> Only one note at a time can be played. This is opposed to “polyphonic,” where multiple simultaneous notes can be played. - <strong>Analog:</strong> There are no computers, microcontrollers, sound samplers, or anything digital involved. The sound you hear is the sound of a speaker being abused by discrete electronic components like capacitors and resistors and logic chips. - <strong>Square-wave:</strong> When its output is viewed on an oscilloscope, its wave resembles a square. It’s a “hard” sounding wave type, great for bass lines, and commonly associated with chiptune music and old video games. These are the 3D models for the [OKAY DIY Kit](http://www.oskitone.com/product/okay-synth-diy-kit). Read more about the project, its design, and where it's headed [here](http://blog.tommy.sh/posts/okay-synth). Differences from [OKAY 2](https://www.thingiverse.com/thing:2760653): fewer keys, keys mounted to enclosure top, key plungers, no audio out jack #### Printing instructions ##### Slicing I print everything at .2mm layer height by default. To get multiple colors, insert color change GCODE at the recommended color change depth. (Assumes .2mm and [allows extra room to minimize errant stringing problems](http://blog.tommy.sh/posts/quick-tip-changing-colors-on-3d-prints), but you should verify in your slicing software before sending to printer.) <table style="width: 100%; table-layout: fixed"> <tr> <td><strong>Part</strong></td> <td><strong>Supports</strong></td> <td><strong>Infill</strong></td> <td><strong>Color change depth</strong></td> </tr> <tr> <td>Bottom</td> <td>Build plate only   </td> <td>Normal (20%)</td> <td>n/a</td> </tr> <tr> <td>Top</td> <td>No</td> <td>Normal (20%)   </td> <td>n/a</td> </tr> <tr> <td>Hinge parts</td> <td>No</td> <td>Normal (20%)</td> <td>n/a</td> </tr> <tr> <td>OKAY text hold-in</td> <td>No</td> <td>Normal (20%)</td> <td>n/a</td> </tr> <tr> <td>Keys</td> <td>No</td> <td>Light (5%)</td> <td>12.8</td> </tr> <tr> <td>Key plungers</td> <td>No</td> <td>Normal (20%)</td> <td>n/a</td> </tr> <tr> <td>Speaker</td> <td>No</td> <td>Normal (20%)</td> <td>5.4</td> </tr> <tr> <td>Labels</td> <td>No</td> <td>Normal (20%)</td> <td>6.4</td> </tr> <tr> <td>OKAY text   </td> <td>No</td> <td>Light (5%)</td> <td>9.8</td> </tr> <tr> <td>Knobs</td> <td>No</td> <td>Normal (20%)</td> <td>18.4</td> </tr> </table> <br /> ##### Assembly - Clean up strings - Cut or melt away any stringing. Be careful not to scratch dark filament underneath text embossing - Enclosure bottom - Break built-in bridge supports from each PCB post with a small screwdriver or other stabby object - Knobs - Cut built-in bridge support from bottom to expose shaft cavity - One knob has a hole in its side. This is a cavity for the brass threaded insert, which you’ll lock into place by inserting with a hot soldering iron Final assembly information is available at http://blog.tommy.sh/posts/okay-synth and http://www.oskitone.com/guides