Christmas bell

prusaprinters

<figure class="media"><oembed url="https://www.youtube.com/watch?v=QmWEGSyZTZs"></oembed></figure><h4>HW needed:</h4><ul><li>screws M3x6</li><li>screws M3x10</li><li>1pc set screw M3x6</li><li>1pc screw M3x12</li><li>2pcs nut M3</li><li>4pcs 608 bearing (8x22x7 mm)</li><li>bell, diameter max 55 mm, height max 65 mm: <a href="https://www.aliexpress.com/item/4000803588459.html?spm=a2g0o.productlist.0.0.2ff54d32NY3g9d&amp;algo_pvid=02004041-e00e-4206-8358-c44a5040c318&amp;algo_exp_id=02004041-e00e-4206-8358-c44a5040c318-0&amp;pdp_ext_f=%7B%22sku_id%22%3A%2210000014302903094%22%7D&amp;pdp_pi=-1%3B2.37%3B-1%3B-1%40salePrice%3BUSD%3Bsearch-mainSearch">Aliexpress 1</a>, <a href="https://www.aliexpress.com/item/33000718604.html?spm=a2g0o.productlist.0.0.2ff54d32NY3g9d&amp;algo_pvid=02004041-e00e-4206-8358-c44a5040c318&amp;algo_exp_id=02004041-e00e-4206-8358-c44a5040c318-30&amp;pdp_ext_f=%7B%22sku_id%22%3A%2210000000422105726%22%7D&amp;pdp_pi=-1%3B2.88%3B-1%3B-1%40salePrice%3BUSD%3Bsearch-mainSearch">Aliexpress 2</a>, <a href="https://www.zvony.com/product-page/zvonek-st%C5%99edn%C3%AD">ČR</a></li><li>N20 mini motor with gearbox, 6V, 200 RMP: <a href="https://www.aliexpress.com/item/1005003229045831.html?spm=a2g0o.productlist.0.0.516d11841px0eV&amp;algo_pvid=f6e35414-a151-491d-a411-60c313ec43f4&amp;algo_exp_id=f6e35414-a151-491d-a411-60c313ec43f4-0&amp;pdp_ext_f=%7B%22sku_id%22%3A%2212000024757391437%22%7D&amp;pdp_pi=-1%3B2.78%3B-1%3B-1%40salePrice%3BUSD%3Bsearch-mainSearch">Aliexpress</a></li><li>6V DC power source</li></ul><h4>Optional HW:</h4><ul><li>Remote control over WiFi: Sonoff SV WiFi relay switch low voltage: <a href="https://www.aliexpress.com/item/32985779544.html?spm=a2g0o.productlist.0.0.8ace6f78RaObTh&amp;algo_pvid=b8d0f255-c70d-4b72-9056-5b1aad9c6cfa&amp;algo_exp_id=b8d0f255-c70d-4b72-9056-5b1aad9c6cfa-1&amp;pdp_ext_f=%7B%22sku_id%22%3A%2266808025206%22%7D&amp;pdp_pi=-1%3B5.61%3B-1%3B-1%40salePrice%3BUSD%3Bsearch-mainSearch">Aliexpress</a>, <a href="https://botland.cz/sonoff-inteligentni-wifi-ovladace/16700-sonoff-sv-rele-5v-24v-wifi-android-ios-5904422326333.html">ČR</a></li><li>For discontinuous ringing: Cycle Digital Time Delay Relay Trigger: <a href="https://www.aliexpress.com/item/10000001437185.html?spm=a2g0o.productlist.0.0.64b35846ko2gBn&amp;algo_pvid=5213e348-8c62-4c8b-a96c-77cf3af9f6ad&amp;algo_exp_id=5213e348-8c62-4c8b-a96c-77cf3af9f6ad-17&amp;pdp_ext_f=%7B%22sku_id%22%3A%2220000000004656490%22%7D&amp;pdp_pi=-1%3B2.42%3B-1%3B-1%40salePrice%3BUSD%3Bsearch-mainSearch">Aliexpress</a>, <a href="https://botland.cz/elektronicke-a-digitalni-spinace/12126-tranzistorovy-spinac-s-nastavitelnym-zpozdenim-15a-36v-5904422318727.html">ČR</a></li></ul><h4>Before the print:</h4><ul><li><strong>Headstock is made for specific bell. In case you use different bell, some adaptation might be needed.</strong></li></ul><h4>Print instructions:</h4><ul><li>PLA</li><li>0,2mm or 0,3 mm layer height</li><li><i>MOTOR_MOUNT, DRIVE_WHEEL, DRIVEN_WHEEL</i> and<i> AXLE</i> with 100% infill</li><li>Use 3 perimeters for stand and headstock.</li><li>Motor is little bit on the noise side when under the load, so I recommend to print <i>MOTOR_MOUNT</i> and <i>MOTOR_HOLDER </i>from softer TPU.</li></ul><h4>Print postprocessing:</h4><ul><li>Remove custom support from <i>STAND_A</i> and <i>DRIVEN_WHEEL.</i></li><li>Tolerances are tight, so some sanding might be needed. But with well calibrated printer the assembly should be smooth.</li><li>Remove bridging in holes in <i>STAND_A</i> and <i>MOTOR_MOUNT.</i></li></ul><p>Assembly:</p><ul><li>Insert M3 nut into <i>MOTOR_MOUNT</i>, press motor mount onto the motor axle and secure it with M3 set screw.</li><li>Axle assembly – from left to right <i>DRIVE_WHEEL</i>, bearing, <i>STAND_A</i>, bearing, <i>MOTOR_MOUNT</i>:</li></ul><figure class="image"><img src="https://media.prusaprinters.org/media/prints/126577/rich_content/036b4264-3611-40be-8b2f-95e144df396e/assembly1.jpg#%7B%22uuid%22%3A%220b0d571d-c80f-441a-b4e6-3ee906ee5b3c%22%2C%22w%22%3A564%2C%22h%22%3A359%7D"></figure><ul><li>Secure position of the <i>DRIVEN_WHEEL</i> with superglue.</li><li>Use M3x12 screw and M3 nut to attach bell to the HEADSTOCK.</li><li>Use M3x6 screws to assembly the rest of the mechanism:</li></ul><figure class="image"><img src="https://media.prusaprinters.org/media/prints/126577/rich_content/1676772f-5f6b-4c9a-b388-a349f3febbe3/image.png#%7B%22uuid%22%3A%22371ca839-d488-46ca-a071-7e6d8305903e%22%2C%22w%22%3A919%2C%22h%22%3A661%7D"></figure><ul><li>Mount the <i>MOTOR_HOLDER</i> to the <i>STAND_A</i> using M3x10 screws. Pay attention to the orientation, see image above.</li><li>Optional: use holes in <i>STAND_A</i> together with <i>SPACER</i> to mount Sonoff WiFi relay, use M3x10 screws.</li><li>Optional: use holes in <i>COVER</i> to mount delay relay trigger, use M3x6 screws.</li><li><strong>Do the wiring.</strong></li><li>Put <i>COVER</i> on, use M3x10 screws to secure it to the rest of the assembly.</li><li>Optional: put some rubber feet at the bottom to prevent item from moving on the table.</li></ul><p>Happy ringing!</p>