Spring latch sliding door bolt lock: rubber band, metal spring, 3D printed spring

prusaprinters

<p>I really like door bolts. but if mounted vertically they tend to open themselves.</p><p>So here I have some sliding door bolts for you that can be mounted in every position without the risk of opening themselves :).</p><p>&nbsp;</p><p>To explain the many parts:</p><p>&nbsp;</p><p>1. I have <i><strong>3 dimensions</strong></i>. They are just scaling up so they get stronger and you can use different wood screws.</p><p><strong>small</strong>: Use with 3<i>mm wood screws</i>.</p><p><strong>medium</strong>: small*1,15: Use with <i>3,5 mm wood screws</i>.</p><p><strong>big</strong>: small*1,3: Use with <i>4 mm wood screws</i>.</p><p>&nbsp;</p><p>2. I have <i><strong>3 different versions</strong></i> with different characteristics</p><p><strong>rubber</strong>: Use this version with a rubber band of your choice. <strong>Pro</strong>: smooth operating, strong. <strong>Contra</strong>: rubber bands will get brittle and need to be replaced before they tear.</p><p><strong>metal_spring</strong>: Use this version with a metal spring (small version: 28 mm long, inner diameter 5 mm). <strong>Pro</strong>: very reliable, no maintenance needed. <strong>Contra</strong>: not as smooth as the rubber version, you need to get a special metal spring.</p><p><strong>3d_spring</strong>: Here you can 3D print all parts (but the wood screws ,-)). <strong>Pro</strong>: Fast available, no extra parts needed, can be placed very close to a wall. <strong>Contra</strong>: Doesn´t work as smooth as the rest, not as strong as the other versions, some materials (like PLA) will weaken over time.</p><p>&nbsp;</p><p>&nbsp;</p><p>To make all versions work as smooth as possible use some <strong>lubricant</strong>. I prefer to use paraffin wax.</p><p>If you have some questions or suggestions for improvement don´t hesitate to contact me or write a comment :)</p><p>Have fun and keep printin!</p><p>PS: These locks can be used for many different applications. I mainly use them as lockable drawer handles.</p><p><strong>Printing instructions:</strong></p><ul><li>no supports needed</li><li>print mit as many perimeters as you wish (the more the stronger).</li><li>25% infill will do the job. But if you go higher the lock will be stronger.</li><li>Use tough material but good PLA will do the job just fine. (The 3D printed spring should be printed with materials like PETG).</li></ul><p>&nbsp;</p><p>&nbsp;</p><p>If you like my work I would be very happy if you share it with others and leave a like :)</p>