Working car gearbox

prusaprinters

<h3>Car gearbox</h3><figure class="table"><table><thead><tr><th>&nbsp;</th><th style="text-align:center;">number of teeth</th><th style="text-align:center;">ratio</th></tr></thead><tbody><tr><th style="vertical-align:top;width:120px;">1st gear</th><td style="text-align:center;">45-15</td><td style="text-align:center;">3:1</td></tr><tr><th style="vertical-align:top;width:120px;">2nd gear</th><td style="text-align:center;">40-20</td><td style="text-align:center;">2:1</td></tr><tr><th style="vertical-align:top;width:120px;">3rd gear</th><td style="text-align:center;">36-24</td><td style="text-align:center;">1,5:1</td></tr><tr><th style="vertical-align:top;width:120px;">4th gear</th><td style="text-align:center;">30-30</td><td style="text-align:center;">1:1</td></tr><tr><th style="vertical-align:top;width:120px;">5th gear</th><td style="text-align:center;">20-40</td><td style="text-align:center;">0.5:1</td></tr><tr><th style="vertical-align:top;width:120px;">reverse gear</th><td style="text-align:center;">33-16-11</td><td style="text-align:center;">3:1</td></tr></tbody></table></figure><figure class="image image-style-align-right image_resized" style="width:31.46%;"><img src="https://m.media-amazon.com/images/I/51YjXgOdeXL._SL1200_.jpg"></figure><h4>Necessary</h4><h5>Berings</h5><p>To print this model you need 10 berings. You can use this <strong>old berings</strong> from your 3d printer, if you don't have them, it's time to change them :).</p><figure class="image image-style-align-right image_resized" style="width:18.98%;"><img src="https://media.printables.com/media/prints/282212/rich_content/07bce134-199a-49b5-bf90-f1ee08307ae5/img_20220831_130435.jpg#%7B%22uuid%22%3A%22038cf361-7022-42c9-8d53-1c383a083301%22%2C%22w%22%3A2860%2C%22h%22%3A2174%7D"></figure><p>You have to remove the plastic from one of these, like that.</p><p>&nbsp;</p><p>&nbsp;</p><h5>Sand paper</h5><figure class="image image-style-align-right image_resized" style="width:13.17%;"><img src="https://media.printables.com/media/prints/282212/rich_content/3d0a0b1a-eeef-43c2-a7e4-f19f2b6005f6/img_20220924_162732.jpg#%7B%22uuid%22%3A%22c5e1c386-e405-40a7-bdf0-834957d1f870%22%2C%22w%22%3A2000%2C%22h%22%3A2000%7D"></figure><figure class="image image-style-align-right image_resized" style="width:13.47%;"><img src="https://media.printables.com/media/prints/282212/rich_content/7209912c-ba70-4262-a550-0eb621510fee/img_20220924_161415.jpg#%7B%22uuid%22%3A%22b3967366-78dd-4582-bf93-d56fefe67012%22%2C%22w%22%3A2000%2C%22h%22%3A2000%7D"></figure><p>If dimensional accuracy of your 3d printer is not perfect and shaft is too wide to fit in the bering, you can use <strong>sand paper</strong>.</p><p>&nbsp;</p><p>&nbsp;</p><h5>Thread</h5><figure class="image image-style-align-right image_resized" style="width:16.86%;"><img src="https://media.printables.com/media/prints/282212/rich_content/b06615ec-a01c-4635-8b98-d72518c2d595/img_20220902_192657.jpg#%7B%22uuid%22%3A%22f48b18c7-8597-4757-807a-1460e73dc686%22%2C%22w%22%3A2753%2C%22h%22%3A2546%7D"></figure><p>If shaft is too thin or you have sanded shaft too much, you can wrap <strong>thread </strong>on the shaft between the gears as a thickness.</p><p>&nbsp;</p><h5>Pice of plastic wire / toothpick</h5><p>You need a <strong>peg </strong>to join output 1, output 2, output 3 and output 4 model. You can use a toothpick or the plastic wire, but you need to heat it and stretch it to make it thinner.</p><p>&nbsp;</p><h4><strong>Slicing Tips</strong></h4><ul><li>It is recommended to use <strong>raft </strong>to limit the elephant foot effect.</li></ul><figure class="image image-style-align-center image_resized" style="width:46.36%;"><img src="https://media.printables.com/media/prints/282212/rich_content/1c5c8597-3727-4c45-aeea-64b84ee3c453/image.png#%7B%22uuid%22%3A%226ca772b8-8874-401b-ad89-45857d288861%22%2C%22w%22%3A446%2C%22h%22%3A118%7D"></figure><ul><li>Use <strong>20% honeycomb infill.</strong></li><li>Use <strong>supports </strong>for output shaft gears and counter shaft crankshaft.<img class="image_resized" style="width:33.21%;" src="https://media.printables.com/media/prints/282212/rich_content/a1f88872-9964-4ca3-8fd7-f37d24013a8f/image.png#%7B%22uuid%22%3A%22cefede3e-8015-481a-b327-452dda3b81f9%22%2C%22w%22%3A751%2C%22h%22%3A493%7D"> <img class="image_resized" style="width:23.02%;" src="https://media.printables.com/media/prints/282212/rich_content/b33d91db-2e12-4852-9330-3faf4c30dfef/image.png#%7B%22uuid%22%3A%220b5c6cf1-1c58-4cdd-b6f7-7830c5ae71ad%22%2C%22w%22%3A570%2C%22h%22%3A543%7D"></li><li><strong>!! Highly recommended !! </strong>For models like this use a <strong>height range modifier.</strong><ul><li>1.<img class="image_resized" style="width:75%;" src="https://media.printables.com/media/prints/282212/rich_content/301914cd-641e-40d3-b5d3-f20bce48987d/image.png#%7B%22uuid%22%3A%224e387775-cb4b-40ae-9b64-6323d6569491%22%2C%22w%22%3A692%2C%22h%22%3A651%7D"></li><li>2.<img class="image_resized" style="width:75%;" src="https://media.printables.com/media/prints/282212/rich_content/0aeb9448-3cfd-4e81-af19-ab5f664ea2c7/image.png#%7B%22uuid%22%3A%22f3fdd188-caec-4ad8-9ce0-9c6b5b23bea8%22%2C%22w%22%3A937%2C%22h%22%3A488%7D"></li><li>3.<img class="image_resized" style="width:75%;" src="https://media.printables.com/media/prints/282212/rich_content/4b37d0d2-b8d4-43e8-8e97-342d55d5748d/image.png#%7B%22uuid%22%3A%22a4b3b364-3464-4646-83ba-e2d3ba0ad18c%22%2C%22w%22%3A1079%2C%22h%22%3A484%7D"></li></ul></li></ul><p>&nbsp;</p><ul><li>The high speed, pattern and heat make a bad print.</li><li>The tiny hole in the middle and the concentric pattern limits extrusion's inaccuracies.</li></ul><figure class="image image-style-align-center image_resized" style="width:32.68%;"><img src="https://media.printables.com/media/prints/282212/rich_content/b7008521-ca6d-4703-9723-70a90c4602ab/senza-nome.png#%7B%22uuid%22%3A%2254cd207a-fa78-486f-9cce-38658efa7062%22%2C%22w%22%3A2100%2C%22h%22%3A3018%7D"></figure><h4>Assembly</h4><figure class="image image-style-align-center image_resized" style="width:75%;"><img src="https://media.printables.com/media/prints/282212/rich_content/3620aa69-44ab-4bc6-925c-5dda335bb1f3/img_20220902_190748.jpg#%7B%22uuid%22%3A%22202ea639-6036-4cd8-adac-84558a81589a%22%2C%22w%22%3A3191%2C%22h%22%3A2606%7D"></figure><h5>Counter shaft</h5><figure class="table"><table><tbody><tr><td>&nbsp;</td><td style="text-align:center;">counter 2nd</td><td style="text-align:center;">counter 1st</td><td style="text-align:center;">counter 4th</td><td style="text-align:center;">counter 3rd</td><td style="text-align:center;">counter reverse</td><td style="text-align:center;">counter 5th</td><td>&nbsp;</td></tr></tbody></table></figure><figure class="table"><table><tbody><tr><td style="text-align:center;">counter 1</td><td style="text-align:center;">counter 2</td><td>counter 3</td><td style="text-align:center;">counter 4</td><td style="text-align:center;">counter 5</td><td style="text-align:center;">counter 6</td><td style="text-align:center;">counter 7</td></tr></tbody></table></figure><figure class="image image-style-align-center"><img src="https://media.printables.com/media/prints/282212/rich_content/09fa801a-dd5b-43fb-98e9-1967b70f6b83/counter-shaft.png#%7B%22uuid%22%3A%225d986aaf-7aca-49a3-9518-ca244d8d11dc%22%2C%22w%22%3A1280%2C%22h%22%3A720%7D"></figure><h5>Output shaft</h5><p>Insert berings in 1st, 2nd, 3rd, 4th and reverse gear and bering without plastic in 5th gear.</p><p><strong>Make sure you put the blocker ring on the right side.</strong></p><figure class="table"><table><thead><tr><th>Gear order</th><th>2nd</th><th>1st</th><th>4th</th><th>3rd</th><th>reverse</th><th>5th</th></tr></thead></table></figure><figure class="image image-style-align-center"><img src="https://media.printables.com/media/prints/282212/rich_content/34c3f1d5-813a-4160-a0d5-cdc5a172d509/gearbox.gif#%7B%22uuid%22%3A%22e4264753-dea7-4a41-b32d-84615ce26529%22%2C%22w%22%3A640%2C%22h%22%3A360%7D"></figure><h5>Last step</h5><p>Insert the shafts in the case.</p><figure class="image image-style-align-center"><img src="https://media.printables.com/media/prints/282212/rich_content/4bf45fc9-3408-44c3-b09e-cc9e5709bf69/gearbox-2.gif#%7B%22uuid%22%3A%228495c9c4-440f-491d-a071-d24388a584e6%22%2C%22w%22%3A960%2C%22h%22%3A540%7D"></figure><p>&nbsp;</p>