Speedometer Clock with plotted watch face

prusaprinters

<figure class="image image-style-align-right image_resized" style="width:50%;"><img src="https://media.prusaprinters.org/media/prints/95217/rich_content/50484d2e-939d-4527-9a99-6dd8fa982255/zus.png#%7B%22uuid%22%3A%22f3dd0686-bfc5-497d-8da9-dbb6b898c75c%22%2C%22w%22%3A952%2C%22h%22%3A680%7D"></figure><h3><strong>Introduction</strong></h3><p>I liked the idea and the look of Oogway´s Speedometer Clock but i don´t liked the printed watch face, because i don´t get it printed nicely.<br>So i decided to make a remix for a plotted watch face.</p><p>The idea was to create a transparent diffusor with a plotted black matte foil, to get a nice illuminated watch face with a crisp and clear appearance.<br>I designed the parts, that there is no need for support.</p><h4>Printed parts</h4><p><strong>Base, Front</strong><br>Material: colorFabb PLA Semi-Matte Black<br>Layer height: 0.2mm<br>Infill: 15%&nbsp;</p><p><strong>Diffusor</strong><br>Material: Prusament PETG Clear<br>Layer height: 0.2mm<br>Infill: 100%</p><p><strong>Needle</strong><br>Material: eSun ABS Red<br>Layer height: 0.15mm<br>Infill: 100%</p><p><strong>Needle cap, button</strong><br>Material: colorFabb PLA Semi-Matte Black<br>Layer height: 0.15mm<br>Infill: 100%</p><h4>Hardware</h4><p>i used following parts:</p><ul><li>1x Node MCU<br><a href="https://www.amazon.de/gp/product/B07V4KL8CW/">https://www.amazon.de/gp/product/B07V4KL8CW/</a></li><li>2x Servo 300°<br><a href="https://www.tme.eu/at/details/df-ser0053/servomechanismen/dfrobot/ser0053/">https://www.tme.eu/at/details/df-ser0053/servomechanismen/dfrobot/ser0053/</a></li><li>1x MicroUSB breakout<br><a href="https://www.amazon.de/gp/product/B07W13X3TD/">https://www.amazon.de/gp/product/B07W13X3TD/</a></li><li>1x RGB Ledstrip<br><a href="https://www.amazon.de/gp/product/B07TKHMZHS/">https://www.amazon.de/gp/product/B07TKHMZHS/</a></li><li>6x M3 thread insert</li><li>6x M3x12 Screw&nbsp;</li></ul><h4><strong>Assembly</strong></h4><figure class="image image-style-align-center image_resized" style="width:75%;"><img src="https://media.prusaprinters.org/media/prints/95217/rich_content/fd694778-3814-4f6e-a48f-7d08659f0f59/expl.png#%7B%22uuid%22%3A%22b7329f71-9fb1-4903-b0d3-fd7f1c1944e5%22%2C%22w%22%3A836%2C%22h%22%3A750%7D"></figure><p>In the <strong>base</strong>, the Node Mcu and the MircoUSB breakout board are held in place by pins, which were melted with a soldering iron. The button is hold in place from the Node Mcu.<br>The RGB Ledstrip is self adhesive and i placed them around the servos.<br>I also made a little pcb for a easier power distribution and to not have to cut off the plugs of the servos. The Servos were held in place with the enclosed screws.</p><figure class="image image-style-align-center image_resized" style="width:75%;"><img src="https://media.prusaprinters.org/media/prints/95217/rich_content/d36d1387-66c7-441e-8402-87a6f16d4ef4/tempimagep97rmk.jpg#%7B%22uuid%22%3A%227713e51f-4bf6-4454-a32d-a40c58ce5a76%22%2C%22w%22%3A3885%2C%22h%22%3A2367%7D"></figure><p><br>In the <strong>front</strong>, the M3 thread insert were placed with a soldering iron.<br>The front is relatively thin, so the inserts should not be longer than 4.5mm.</p><figure class="image image-style-align-center image_resized" style="width:50%;"><img src="https://media.prusaprinters.org/media/prints/95217/rich_content/9d87d541-14d5-4549-b049-04e4ef39120d/tempimagezyqowh.jpg#%7B%22uuid%22%3A%22f4fb3b98-6976-460a-bbd3-16b3f41e1f9b%22%2C%22w%22%3A4032%2C%22h%22%3A3024%7D"></figure><p><br>I plotted the watch face for the hours and minutes in once, so the positioning is easy and the risk of a twisted scale is barely there. The diffusor is symmetrical, so i sticked the foil on the nice side with the structure of the satin print sheet.<br>I used Silhouette Studio for design the watch face and uploaded the .studio3 and also as a converted .svg for other plotter software.</p><figure class="image image-style-align-center image_resized" style="width:75%;"><img src="https://media.prusaprinters.org/media/prints/95217/rich_content/5c70b597-52d0-4821-8bbe-19acf049ebff/tempimagejaqte8.jpg#%7B%22uuid%22%3A%223296c6ec-bd39-482d-b56e-84aa8217d151%22%2C%22w%22%3A3848%2C%22h%22%3A2021%7D"></figure><h4><br>Software</h4><p>Before you screw in the Servos, you have to setup the NodeMCU.<br>I recommend, that you test all functions before you screw together the case and attach the needles with the screw.</p><p>For the Arduino sketch you need some more libraries, wich are documented with a link to the repository in the sketch. For an easy integration in your wifi, i used the wifimanager library, wich allows you to setup your SSID and password with a smartphone or tablet.<br>How it works is also documented on GitHub - the generated AP is “Clock-AP” without a password. You only need to configure your wifi once.<br>Maybe you have to modify some parameters directly in the sketch, e.g.: servo positions and timezone.</p><h4>Settings</h4><p>The clock is operated by a small button on the back.<br>Once it has a wifi connection, you can switch threw the rgb colors, with a short click.<br>With a longer press you come into "setup brightness" mode.<br>The hour needle moves to 1 and the minute needle represents the actual LEDStrip brightness. You can change the brightness by short click the button.<br>With another longer press, you change to “setup summertime" mode.<br>The minute needle moves to 0 and the hour needle represents the daylight saving time shift.<br>With a short click on the button, you change the summertime from 1 (GMT+1) to 2 (GMT+2).<br>With another longer press, you come back to the clock mode and the settings were saved.</p><p><strong>To zero the needles,</strong> i recommend, to go to the Summertime Mode and press on the needles at exactly 1, respectively 0 at the minute needle.<br>I experienced, that the Servo is not linear, so it is possible, that you have to correct the servo positions in the array.</p><h4>Final Steps</h4><p>After everything works as expected, fix the needles with the enclosed servo screw and screw together the case.<br>Final the needle caps should snap on, or can be secured with a small amount of glue.</p><figure class="image image-style-align-center image_resized" style="width:75%;"><img src="https://media.prusaprinters.org/media/prints/95217/rich_content/87d96c7e-eaee-41fe-bd97-cd71766a51f4/tempimagejorggu.jpg#%7B%22uuid%22%3A%22ca5ac5a1-5b70-4d38-86c7-dcf7e14b4f35%22%2C%22w%22%3A4032%2C%22h%22%3A3024%7D"></figure><p>&nbsp;</p><h3>Complete Clock</h3><p>Tip: With a small bend on the micro USB cable, you get a nice angled view!</p><figure class="image"><img src="https://media.prusaprinters.org/media/prints/95217/rich_content/95bb08f5-002e-4f4c-98c2-b318a0705871/tempimagepk3op1.jpg#%7B%22uuid%22%3A%2263a3fc4b-6fa6-448a-aa16-8730fe3891e0%22%2C%22w%22%3A4032%2C%22h%22%3A3024%7D"></figure><p>&nbsp;</p>